Showing papers by "Taihong Wang published in 2013"
TL;DR: In this paper, a review of the recent development of nanomaterials for the application of electrochemical non-enzymatic glucose biosensors is presented, and the electrocatalytic mechanism and glucose sensing performance of a variety of nanostructured materials including metallic nanoparticles, metal oxides, metal complexes, alloys and carbon nanommaterials are discussed.
Abstract: This review overviews the recent development of nanomaterials for the application of electrochemical non-enzymatic glucose biosensors. The electrocatalytic mechanism and glucose sensing performance of a variety of nanostructured materials including metallic nanoparticles, metal oxides, metal complexes, alloys and carbon nanomaterials are discussed. The merits and shortfalls of each nanomaterial as electrocatalyst for non-enzymatic biosensing are evaluated and the prospects of non-enzymatic glucose biosensors are presented.
296 citations
TL;DR: In this paper, a nano-forest of hierarchical Co 3 O 4 @NiCo 2 O 4 nanowire arrays was synthesized via a facile strategy for electrochemical supercapacitors.
260 citations
TL;DR: Results implied that the hierarchical NiMoO4 nanospheres could be a promising candidate for use as high-performance SCs.
Abstract: Much attention has been paid to exploring electrode materials with enhanced supercapacitor performance as well as relatively low cost and environmental friendliness. In this work, NiMoO4 nanospheres and nanorods were synthesized by facile hydrothermal methods. The hierarchical NiMoO4 nanospheres were about 2.5 μm in diameter and assembled from thin mesoporous nanosheets with a thickness of about 10–20 nm. The NiMoO4 nanorods were about 80 nm in diameter and about 300 nm to 1 μm in length. Their electrochemical properties were investigated for use as electrode materials for supercapacitors (SCs). The NiMoO4 nanospheres exhibited a higher specific capacitance and better cycling stability and rate capability, which were attributed to their large surface area and high electrical conductivity. The specific capacitances were 974.4, 920.8, 875.5, 859.1, and 821.4 F/g at current densities of 1, 2, 4, 6, and 10 A/g, respectively. Remarkably, the energy density was able to reach 20.1 Wh/kg at a power density of 210...
252 citations
TL;DR: The results show that this unique 3D hierarchical porous nickel cobaltite is promising for electrochemical energy applications.
Abstract: A facile hydrothermal method is developed for large-scale production of three-dimensional (3D) hierarchical porous nickel cobaltate nanowire cluster arrays derived from nanosheet arrays with robust adhesion on Ni foam. Based on the morphology evolution upon reaction time, a possible formation process is proposed. The role of NH4F in formation of the structure has also been investigated based on different NH4F amounts. This unique structure significantly enhances the electroactive surface areas of the NiCo2O4 arrays, leading to better interfacial/chemical distributions at the nanoscale, fast ion and electron transfer and good strain accommodation. Thus, when it is used for supercapacitor testing, a specific capacitance of 1069 F g−1 at a very high current density of 100 A g−1 was obtained. Even after more than 10 000 cycles at various large current densities, a capacitance of 2000 F g−1 at 10 A g−1 with 93.8% retention can be achieved. It also exhibits a high-power density (26.1 kW kg−1) at a discharge current density of 80 A g−1. When used as an anode material for lithium-ion batteries (LIBs), it presents a high reversible capacity of 976 mA h g−1 at a rate of 200 mA g−1 with good cycling stability and rate capability. This array material is rarely used as an anode material. Our results show that this unique 3D hierarchical porous nickel cobaltite is promising for electrochemical energy applications.
246 citations
TL;DR: In this article, a 3D uniform ZnCo-glycolate precursor microspheres composed of nanosheets were successfully synthesized via a facile ethylene glycol mediated solvothermal method.
Abstract: In this paper, three dimensional (3D) uniform ZnCo-glycolate precursor microspheres composed of nanosheets were successfully synthesized via a facile ethylene glycol (EG) mediated solvothermal method. Through moderate calcination of the as-synthesized ZnCo-glycolate precursor, they could be converted into uniform mesoporous ZnCo2O4 microspheres with surrounding nanoparticles. The obtained samples were systematically characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and N2 adsorption–desorption. The results demonstrated that tuning of the surface texture and the pore size of the ZnCo2O4 products were very significant in Li-ion batteries (LIBs). The uniform mesoporous ZnCo2O4 microspheres exhibit excellent high specific capacity, superior rate capability, and enhanced cycling performance. At a current density of 100 mA g−1, the uniform mesoporous ZnCo2O4 microspheres exhibited excellent initial specific capacity of 1332 mAh g−1. The capacity maintain at 721 mAh g−1 after 80 discharge–charge cycles. Even as current density reached to 1000 mA g−1, the initial specific capacity still showed 937 mAh g−1 and the discharge capacity of 432 mAh g−1 was retained after 40 cycles.
246 citations
TL;DR: In this work, NiCo2O4 nanosheet arrays were deposited on flexible carbon fabric (CF) as a high-performance electrode for supercapacitors and exhibited a high specific capacitance, good rate performance, and superior cycling life, suggesting the NiCo 2O4/CF is a promising electrode material for flexible electrochemical capacitors.
Abstract: NiCo2O4 with higher specific capacitance is an excellent pseudocapacitive material. However, the bulk NiCo2O4 material prevents the achievement of high energy desity and great rate performance due to the limited electroactive surface area. In this work, NiCo2O4 nanosheet arrays were deposited on flexible carbon fabric (CF) as a high-performance electrode for supercapacitors. The NiCo2O4 arrays were constructed by interconnected ultrathin nanosheets (10 nm) with many interparticle pores. The porous feature of NiCo2O4 nanosheets increases the amount of electroactive sites and facilitates the electrolyte penetration. Hence, the NiCo2O4/CF composites exhibited a high specific capacitance of 2658 F g(-1) (2 A g(-1)), good rate performance, and superior cycling life, suggesting the NiCo2O4/CF is a promising electrode material for flexible electrochemical capacitors.
243 citations
TL;DR: In this paper, a CoMoO4 nanoplate array (NPAs) was grown directly on Ni foam via a template-free hydrothermal route, which exhibited remarkable electrochemical performance with a high specific capacitance of 1.26 F cm−2.
Abstract: CoMoO4 nanoplate arrays (NPAs) were grown directly on Ni foam via a template-free hydrothermal route. The morphology of CoMoO4 NPAs was examined by scanning and transmission electron microscopy and the phase structure of nanoplates (NPs) was analyzed using X-ray diffraction spectroscopy. Based on a series of time-dependent experiments, a possible growth mechanism for this structure was proposed. The CoMoO4 NPAs supported on Ni foam could be directly used as integrated electrodes for electrochemical capacitors. Such unique array architectures exhibited remarkable electrochemical performance with a high specific capacitance of 1.26 F cm−2 at a charge and discharge current density of 4 mA cm−2 and 0.78 F cm−2 at 32 mA cm−2 with an excellent cycling ability (79.5% of the initial specific capacitance remained after 4000 cycles). The superior electrochemical performances could be attributed to the open network structure constituted of interconnected CoMoO4 NPAs directly grown on current collectors that could improve electron transport and enhance electrolyte diffusion efficiency.
232 citations
TL;DR: NiMoO4 nanowires supported on Ni foam were fabricated via a template-free hydrothermal route, and could be directly used as integrated electrodes for electrochemical capacitors.
Abstract: NiMoO4 nanowires (NWs) supported on Ni foam were fabricated via a template-free hydrothermal route, and could be directly used as integrated electrodes for electrochemical capacitors (ECs). Such unique integrated architectures exhibited remarkable electrochemical performance with high capacitance, excellent rate capability and desirable cycle life at high rates.
172 citations
TL;DR: The present study may provide a new strategy for the synthesis of binder-free anodes for lithium-ion batteries with excellent properties and improved properties of CoO-C nanofiber networks were ascribed to nanofibers as the framework to keep the structural stability, and favorable mass and charge transport.
Abstract: CoOx-carbon nanofiber networks were prepared from cobalt(ii) acetate and polyacrylonitrile by an electrospinning method followed by thermal treatment. The XPS results demonstrated that the cobalt compound in CoOx-carbon obtained at 650 °C was CoO rather than Co or Co3O4. The CoO nanoparticles with diameters of about 8 nm were homogeneously distributed in the matrix of the nanofibers with diameters of 200 nm. As binder-free anodes for lithium-ion batteries, the discharge capacities of such CoO-carbon (CoO-C) composite nanofiber networks increased with the pyrolysis and annealing temperature, and the highest value was 633 mA h g(-1) after 52 cycles at a current density of 0.1 A g(-1) when the CoO-C was obtained at 650 °C. In addition, the rate capacities of the CoO-C obtained at 650 °C were found to be higher than that of the sample annealed at a lower temperature and pure carbon nanofiber networks annealed at 650 °C. The improved properties of CoO-C nanofiber networks were ascribed to nanofibers as the framework to keep the structural stability, and favorable mass and charge transport. The present study may provide a new strategy for the synthesis of binder-free anodes for lithium-ion batteries with excellent properties.
144 citations
TL;DR: The results indicate that the reduced graphene oxide-nickel sulfide network promoted by bacteria is a promising electrode material for supercapacitors.
Abstract: Supercapacitors with potential high power are useful and have attracted much attention recently. Graphene-based composites have been demonstrated to be promising electrode materials for supercapacitors with enhanced properties. To improve the performance of graphene-based composites further and realize their synthesis with large scale, we report a green approach to synthesize bacteria-reduced graphene oxide-nickel sulfide (BGNS) networks. By using Bacillus subtilis as spacers, we deposited reduced graphene oxide/Ni3S2 nanoparticle composites with submillimeter pores directly onto substrate by a binder-free electrostatic spray approach to form BGNS networks. Their electrochemical capacitor performance was evaluated. Compared with stacked reduced graphene oxide-nickel sulfide (GNS) prepared without the aid of bacteria, BGNS with unique nm−μm structure exhibited a higher specific capacitance of about 1424 F g–1 at a current density of 0.75 A g–1. About 67.5% of the capacitance was retained as the current den...
130 citations
TL;DR: A novel nanostructure with gold nanorods encapsulated in NGO shells is developed to be an ultraefficient chemophotothermal cancer therapy agent and could be extended to constructing other NGO-encapsulated functional nanomaterial-based carrier systems.
Abstract: Nanographene oxide (NGO) are highly suitable to be the shells of inorganic nanomaterials to enhance their biocompatibility and hydrophilicity for biomedical applications while retaining their useful photonic, magnetic, or radiological functions. In this study, a novel nanostructure with gold nanorods (AuNRs) encapsulated in NGO shells is developed to be an ultraefficient chemophotothermal cancer therapy agent. The NGO shells decrease the toxicity of surfactant-coated AuNRs and provide anchor points for the conjugation of hyaluronic acid (HA). The HA-conjugated NGO-enwrapped AuNR nanocomposites (NGOHA-AuNRs) perform higher photothermal efficiency than AuNRs and have the capability of targeting hepatoma Huh-7 cells. NGOHA-AuNR is applied to load doxorubicin (DOX), and it exhibits pH-responsive and near-infrared light-triggered drug-release properties. Chemophotothermal combined therapy by NGOHA-AuNRs-DOX performs 1.5-fold and 4-fold higher targeting cell death rates than single chemotherapy and photothermal...
TL;DR: In this paper, a hybrid structure involving efficient plentiful ultrasmall SnS2 nanocrystals decorated on flexible reduced graphene oxide (RGO) has been successfully realized via a simple refluxing method.
Abstract: A hybrid structure involving efficient plentiful ultrasmall SnS2 nanocrystals decorated on flexible reduced graphene oxide (RGO) has been successfully realized via a simple refluxing method. Compared to previous studies, the ultrasmall SnS2 nanocrystals can compactly and orderly cover the RGO nanosheets, increasing the loading number of SnS2 per unit area of the RGO substrates. The ultrasmall SnS2 nanocrystals@RGO nanocomposites were investigated as electrode materials for lithium-ion batteries. In this hybrid structure, RGO was not only used as a solid support to uniformly distribute the SnS2 nanocrystals, but also as a carrier to accelerate electron transport. In addition, the uniform size and homogeneous SnS2 nanocrystals on the RGO nanosheets reduced electrode polarization, resulting in excellent electrochemical performance for lithium-ion batteries. A specific capacity up to 1034 mA h g−1 was realized from an ultrasmall SnS2 nanocrystals@RGO electrode even after 200 cycles at 0.1 C. Importantly, the ultrasmall SnS2 nanocrystals@RGO electrode showed excellent capacity retention for up to 450 cycles even at a high rate of 5 C. The cost-effective synthesis of SnS2 nanocrystals@RGO and excellent electrochemical performance indicates the great potential for this type of nanocomposites as an active electrode for lithium-ion batteries.
TL;DR: α-Fe(2)O(3) nanochains have been successfully synthesized via an ammonium acetate-based ionothermal synthetic route and displayes high sensitivity due to its unique structure and smaller size.
Abstract: α-Fe2O3 nanochains have been successfully synthesized via an ammonium acetate-based ionothermal synthetic route. When detecting low-ppm-level H2S gas, the nanochain sensor displayes high sensitivity due to its unique structure and smaller size.
TL;DR: A hydrophilic shell with excellent biocompatibility was successfully constructed on individual gold NPs or gold nanorods by encapsulating NPs either in graphene oxide (GO) nanosheets through electrostatic self-assembly and provided abundant functional groups on NPs surface for further linkage of polyethylenimine (PEI).
Abstract: Surface modification of inorganic nanoparticles (NPs) is extremely necessary for biomedical applications. However, the processes of conjugating ligands to NPs surface are complicated with low yield. In this study, a hydrophilic shell with excellent biocompatibility was successfully constructed on individual gold NPs or gold nanorods (NRs) by encapsulating NPs or NRs in graphene oxide (GO) nanosheets through electrostatic self-assembly. This versatile and facile approach remarkably decreased the cytotoxicity of gold NPs or NRs capping with surfactant cetyltrimethylammonium bromide (CTAB) and provided abundant functional groups on NPs surface for further linkage of polyethylenimine (PEI). The PEI-functionalized GO-encapsulating gold NPs (GOPEI-AuNPs) were applied to delivery DNA into HeLa cells as a novel gene vector. It exhibited high transfection efficiency of 65% while retaining 90% viability of HeLa cells. The efficiency was comparable to commercialized PEI 25 kDa with the cytotoxicity much less than PE...
TL;DR: In this paper, 3D flower-like NiO hierarchical architectures have been synthesized by a simple ethanolamine (EA)-mediated self-assembly route and subsequent calcination process.
TL;DR: Porous α-Fe2O3 nanospheres have been successfully prepared by a microwave-assisted hydrothermal method coupled with an annealing technique as mentioned in this paper, which presented a fast response, enhanced sensitivity and excellent selectivity towards H2S.
Abstract: Porous α-Fe2O3 nanospheres have been successfully prepared by a microwave-assisted hydrothermal method coupled with an annealing technique. The porous α-Fe2O3 nanosphere-based sensor presented a fast response, enhanced sensitivity and excellent selectivity towards H2S due to its intrinsic characteristics, porous structure and nanoscale size.
TL;DR: The double protection strategy to improve the electrode performance through producing SnOx@C@G composites is versatile and can be extended to the fabrication of various types of composites between metal oxides and graphene nanomaterials, possessing promising applications in catalysis, sensing, supercapacitors and fuel cells.
Abstract: SnOx is a promising high-capacity anode material for lithium-ion batteries (LIBs), but it usually exhibits poor cycling stability because of its huge volume variation during the lithium uptake and release process. In this paper, SnOx carbon nanofibers (SnOx@CNFs) are firstly obtained in the form of a nonwoven mat by electrospinning followed by calcination in a 0.02 Mpa environment at 500 °C. Then we use a simple mixing method for the synthesis of SnOx@CNF@graphene (SnOx@C@G) nanocomposite. By this technique, the SnOx@CNFs can be homogeneously deposited in graphene nanosheets (GNSs). The highly scattered SnOx@C@G composite exhibits enhanced electrochemical performance as anode material for LIBs. The double protection strategy to improve the electrode performance through producing SnOx@C@G composites is versatile. In addition, the double protection strategy can be extended to the fabrication of various types of composites between metal oxides and graphene nanomaterials, possessing promising applications in catalysis, sensing, supercapacitors and fuel cells.
TL;DR: In this article, WO3 nanoparticles decorated on highly porous TiO2 nanotubes along both internal and external sidewalls were synthesized through emulsion electrospinning, thermal evaporation, and thermal annealing.
Abstract: The hybrid structure of nanoparticle-decorated nanotubes has the advantage of both large specific surface areas of nanoparticles and anisotropic properties of nanotubes, which is desirable for many applications. In this study, WO3 nanoparticles decorated on highly porous TiO2 nanotubes along both internal and external sidewalls (WO3@TiO2@WO3 heterostructures) were synthesized through emulsion electrospinning, thermal evaporation, and thermal annealing. The WO3@TiO2@WO3 heterostructures had large specific surface areas, high porous structure and excellent interface (between WO3 nanoparticles and TiO2 nanotubes). Three other samples, TiO2 nanofibers, TiO2 nanotubes, and TiO2 nanofibers decorated by WO3 nanoparticles, were prepared in order to compare with the WO3@TiO2@WO3 heterostructures for photocatalysis with both UV and visible light irradiation. The new material (WO3@TiO2@WO3 heterostructures) had a wide range of light absorption and demonstrated the best photocatalytic performance. The possible growth mechanism and reasons for high photocatalysis are discussed in detail.
TL;DR: In this article, the authors reported the synthesis of hierarchical small quantity Mo-decorated Co3O4 nanowire arrays on nickel foam substrates by a powerful two-step solution-based method.
Abstract: Herein, we report the synthesis of hierarchical small quantity Mo-decorated Co3O4 nanowire arrays on nickel foam substrates by a powerful two-step solution-based method. The “oriented attachment” and “self-assembly” crystal growth mechanisms are proposed to discuss the growth of the Mo-decorated Co3O4 heterostructures. This heterostructure material with a high specific surface areas provides an extraordinarily high area capacitance of 3.5 F cm−2 at a current density of 17 mA cm−2 (∼2000 F g−1 at a current density of 10 A g−1) in the initial cycles, compared with a bare Co3O4 nanowire array electrode with 2.2 F cm−2 at 17 mA cm−2 (∼1257 F g−1 at 10 A g−1), exhibiting a significant increase in the capacitance of around 60%. When the current density of the hybrid array is increased by 20 times (1.7 to 34 mA cm−2), more than 73% of the specific capacitance can be maintained, which shows a good rate performance. Such a growth approach offers a versatile technique for the design and synthesis of metal oxide hierarchical nanoarrays for electrochemical energy storage applications.
TL;DR: The methodology demonstrated in this paper shows that a combination of novel sensing materials and Schottky contact is an effective approach to design high-performance gas sensors.
Abstract: A new hydrogen sensor was fabricated by coating a Pd-decorated In2O3 film on Au electrodes. In response to 1 vol% H2 at room temperature, an ultra high sensitivity of 4.6 × 107 was achieved. But after an annealing treatment in vacuum, its sensitivity degenerated by 4 orders of magnitude. In addition, the response time and recovery time were also extended from 28 s and 32 s to 242 s and 108 s, respectively. It was found from contrast experiments that Pd decoration was essential to make the sensor work at room temperature and Schottky barriers played a vital role in enhancing the sensor's performance. The methodology demonstrated in this paper shows that a combination of novel sensing materials and Schottky contact is an effective approach to design high-performance gas sensors.
TL;DR: The transistor based sensor demonstrated high selectivity and stability for AI H5N1 virus sensing, and can be promising candidates for the development of label-free biosensors.
TL;DR: An impregnation-calcination method based on the thermal decomposition of stannous sulfate is developed to prepare carbon cryogel-tin oxide nanocomposites with less impurity for anode materials of lithium-ion batteries as discussed by the authors.
TL;DR: In this article, hierarchical structures consisting of highly conductive Au nanoparticles decorated on NiO nanostructures could significantly improve electrical conductivity, and the Au-NiO composite exhibits greatly improved rate performance as pseudo-capacitors.
Abstract: Hierarchical structures consisting of highly conductive Au nanoparticles decorated on NiO nanostructures could significantly improve electrical conductivity. Herein, the Au–NiO composite exhibits greatly improved rate performance as pseudo-capacitors, and a high specific capacitance value of 619 F g−1 at a high rate of 20 A g−1, which is much higher than that of pure NiO electrodes (216 F g−1).
TL;DR: The gram-scale synthesis of ultrasmall SnO2 nanocrystals has been successfully realized via a solvothermal process, during which the solvent used plays an important role in inhibiting the growth and aggregation of the nanocry crystals.
Abstract: The gram-scale synthesis of ultrasmall SnO2 nanocrystals has been successfully realized via a solvothermal process, during which the solvent used plays an important role in inhibiting the growth and aggregation of the nanocrystals. When investigating their electrochemical behaviour, the nanocrystal electrode shows an excellent performance in capacity retention and a better rate capacity.
TL;DR: In this paper, the humidity dependent properties of a single Sb doped SnO2 nanowire field effect transistor (NWFET) were investigated under different relative humidities (RHs) at room temperature.
Abstract: This work reports the humidity dependent properties of a single Sb doped SnO2 nanowire field effect transistor (NWFET). The NWFET is fabricated by a lithography method on a highly doped silicon substrate as back gate covered by oxide as gate dielectric. The electric properties of the device under different relative humidities (RHs) at room temperature are investigated. The NWFET exhibits a field effect mobility of 108.7 cm2/(V s), a subthreshold swing of 70 mV/decade, and a drain current on/off ratio of 106. The threshold voltage shifts from −11.2 V to −14.6 V as RH increases from 22% to 40%. The NWFET exhibits sensitive behaviors to the humidity, which is promising for the application in humidity sensors.
TL;DR: It is shown that the synthesis and surface adjustment of highly stable hierarchical SnO2 nanospheres can be realized by biomineralization, vulcanization and oxidation techniques and ensure a remarkable sensitivity towards NO gas with fast response and recovery due to their high crystallinity and special structure.
Abstract: Controllable synthesis and surface engineering of nanomaterials are of strategic importance for tailoring their properties. Here, we demonstrate that the synthesis and surface adjustment of highly stable hierarchical of SnO2 nanospheres can be realized by biomineralization, vulcanization and oxidation techniques. Furthermore, we reveal that the highly stable hierarchical SnO2 nanospheres ensure a remarkable sensitivity towards NO gas with fast response and recovery due to their high crystallinity and special structure. Such technique acquiring highly stable hierarchical SnO2 nanospheres offers promising potential for future practical applications in monitoring the emission from waste incinerators and combustion process of fossil fuels.
TL;DR: In this paper, structural characterizations reveal that the assembled α-Fe 2 O 3 nanoplates are composed of different submits via a particle-particle assembly way and the morphologies of assembled nano-structures could be tailored through adjusting the concentration of FeCl 3 and the reaction solvents.
TL;DR: In this paper, a facile solvothermal approach was used to synthesize hierarchical SnS2 structures for anode materials of rechargeable lithium-ion batteries, which showed high specific capacities and enhanced rate capacities.
TL;DR: A novel emulsion electrospinning-thermal treatment method to synthesize the nanoparticles deposited on both side walls of nanotubes with two unique characteristics, which will have an impact on diverse technologies such as lithium ion batteries, catalysts, and photoelectrochemical devices.
Abstract: The hybrid structure of nanoparticle-decorated highly porous nanotubes combines the advantages of large specific surface areas of nanoparticles and anisotropic properties of highly porous nanotubes, which is desirable for many applications, including batteries, photoelectrochemical water splitting, and catalysis. Here, we report a novel emulsion electrospinning-thermal treatment method to synthesize the nanoparticles deposited on both side walls of nanotubes with two unique characteristics: (1) large loading amount of nanoparticles per highly porous nanotubes (with the morphology of nanoparticles); (2) intimate contact between nanoparticles and highly porous nanotubes. Both features are advantageous for the above applications that involve both surface reactions and charge transportation processes. Moreover, the emulsion electrospinning-thermal treatment method is simple and straightforward, with which we have successfully decorated various highly porous metal oxide nanotubes with metal oxide or noble metal nanoparticles. The new method will have an impact on diverse technologies such as lithium ion batteries, catalysts, and photoelectrochemical devices.
TL;DR: In this paper, a reticular tin-iron oxide composite has been prepared by electrostatic spray deposition method for lithium-ion batteries, and the structure of depsitied electrodes are investigated by X-ray Diffraction (XRD) which shows that the film is amorphous.
Abstract: Porous reticular tin–iron oxide composite have been prepared by electrostatic spray deposition method for lithium-ion batteries. The structure of depsitied electrodes are investigated by X-ray Diffraction (XRD), which shows that the film is amorphous. Electrochemical characterization by galvanostatic charge-discharge tests demonstrate that the conversion reactions in these electrodes enable initial discharge capacities of about 1551 mAh/g for tin–iron oxide thin film electrode, and the reversible capacity stayed in the range of 769–601 mAh/g during the successive 30 cycles. The high porosity of the 3D reticular structure can provide more reaction sites on the electrode surface and accommodate volume variation of Sn particles during Li alloying–dealloying. Such a composite film are expected to be applied as attractive anodes for lithium-ion batteries.