Journal ArticleDOI
Rationally Designed Hierarchical TiO2@Fe2O3 Hollow Nanostructures for Improved Lithium Ion Storage
Jingshan Luo,Xinhui Xia,Yongsong Luo,Cao Guan,Jilei Liu,Xiaoying Qi,Chin Fan Ng,Ting Yu,Hua Zhang,Hong Jin Fan +9 more
TLDR
In this paper, an atomic layer deposition (ALD) and sacrificial template-assisted hydrolysis were used to construct a hierarchical hollow TiO2@Fe2O3 nanostructures for the application of lithium ion battery.Abstract:
Hollow and hierarchical nanostructures have received wide attention in new-generation, high-performance, lithium ion battery (LIB) applications. Both TiO2 and Fe2O3 are under current investigation because of their high structural stability (TiO2) and high capacity (Fe2O3), and their low cost. Here, we demonstrate a simple strategy for the fabrication of hierarchical hollow TiO2@Fe2O3 nanostructures for the application as LIB anodes. Using atomic layer deposition (ALD) and sacrificial template-assisted hydrolysis, the resulting nanostructure combines a large surface area with a hollow interior and robust structure. As a result, such rationally designed LIB anodes exhibit a high reversible capacity (initial value 840 mAh g−1), improved cycle stability (530 mAh g−1 after 200 cycles at the current density of 200 mA g−1), as well as outstanding rate capability. This ALD-assisted fabrication strategy can be extended to other hierarchical hollow metal oxide nanostructures for favorable applications in electrochemical and optoelectronic devices.read more
Citations
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Synthesis, Properties, and Applications of Hollow Micro-/Nanostructures
TL;DR: The unique properties and niche applications of the hollow structures in diverse fields, including micro-/nanocontainers and reactors, optical properties and applications, magnetic properties, energy storage, catalysis, biomedical applications, environmental remediation, and sensors are discussed.
Journal ArticleDOI
Rational Design of Metal‐Organic Framework Derived Hollow NiCo2O4 Arrays for Flexible Supercapacitor and Electrocatalysis
TL;DR: In this article, a facile two-step solution method to rational design of a novel electrode of hollow NiCo2O4 nanowall arrays on flexible carbon cloth substrate is reported.
Journal ArticleDOI
Three-Dimensional Graphene Foam Supported Fe3O4 Lithium Battery Anodes with Long Cycle Life and High Rate Capability
Jingshan Luo,Jilei Liu,Zhiyuan Zeng,Chin Fan Ng,Lingjie Ma,Hua Zhang,Jianyi Lin,Jianyi Lin,Zexiang Shen,Hong Jin Fan +9 more
TL;DR: A bottom-up strategy assisted by atomic layer deposition to graft bicontinuous mesoporous nanostructure Fe3O4 onto three-dimensional graphene foams and directly use the composite as the lithium ion battery anode, which exhibits high reversible capacity and fast charging and discharging capability.
Journal ArticleDOI
Hollow Nano- and Microstructures as Catalysts
Gonzalo Prieto,Harun Tüysüz,Nicolas Duyckaerts,Johannes Knossalla,Guang-Hui Wang,Ferdi Schüth +5 more
TL;DR: This review provides an updated and critical survey of the ever-expanding material architectures and applications of hollow structures in all branches of catalysis, including bio-, electro-, and photocatalysis.
Journal ArticleDOI
3D hierarchical porous α-Fe2O3 nanosheets for high-performance lithium-ion batteries
TL;DR: In this article, a 3D hierarchical porous α-Fe2O3 nanosheets are fabricated on copper foil and directly used as binder-free anode for lithium-ion batteries.
References
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Carbon Coated Fe3O4 Nanospindles as a Superior Anode Material for Lithium-Ion Batteries
TL;DR: In this paper, a carbon-coated Fe3O4C nanospindles were synthesized by partial reduction of monodispersed hematite spindles with carbon coatings.
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On the Origin of the Extra Electrochemical Capacity Displayed by MO/Li Cells at Low Potential
TL;DR: In this paper, the pseudocapacitive character of polymeric/gel-like polymers was investigated and the authors concluded that the origin of the lowvoltage capacity is nested in the in situ made polymeric polymers.
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Recent advances in micro-/nano-structured hollow spheres for energy applications: From simple to complex systems
TL;DR: In this article, the authors show that complex multi-shelled micro-nano-materials show significant material advantages in many applications over conventional simple hollow structures, and discuss the possible application of these novel materials for power generation and storage.
Journal ArticleDOI
Three-dimensional bicontinuous ultrafast-charge and -discharge bulk battery electrodes
TL;DR: This work demonstrates very large battery charge and discharge rates with minimal capacity loss by using cathodes made from a self-assembled three-dimensional bicontinuous nanoarchitecture consisting of an electrolytically active material sandwiched between rapid ion and electron transport pathways.
Journal ArticleDOI
α‐Fe2O3 Nanoflakes as an Anode Material for Li‐Ion Batteries
M. V. Reddy,Ting Yu,Chorng Haur Sow,Zexiang Shen,Chwee Teck Lim,G. V. Subba Rao,B. V. R. Chowdari +6 more
TL;DR: In this article, the performance of α-Fe2O3 nanoflakes has been evaluated by cyclic voltammery, galvanostatic discharge-charge cycling, and impedance spectral measurements on cells with Li metal as the counter and reference electrodes, at ambient temperature.