Showing papers in "Electrochemistry Communications in 2013"

TL;DR: In this article, the performance of hard carbon prepared from sugar pyrolysis was investigated against sodium anodes and additive free EC:PC based electrolyte which appears to induce the formation of a more conducting solid electrolyte interphase (SEI) than that produced in the presence of 2% fluoroethylene carbonate (FEC).

TL;DR: In this article, an aqueous rechargable Na-ion battery was developed by using of Na-deficient NaTi 2 (PO 4 ) 3 anode, Na-rich Na 2 NiFe(CN) 6 cathode and aaqueous Na 2 SO 4 electrolyte.

TL;DR: In this paper, the partial substitution of metal element for Fe in O3-type NaFeO 2 -based materials is proved to suppress the irreversible phase transition, and thus improving the reversibility of sodium removal/insertion as the electrode materials.

TL;DR: In this article, a promising strategy for large-scale fabrication of silicon (Si) nanotubes was described, which showed significantly improved rate capability and long-term cycling performance compared with commercial silicon meshes.

TL;DR: In this article, the electrochemical properties of single-, few-and multi-layer graphene, reduced graphene oxides, CVD graphene and three-dimensional graphene are discussed and evaluated.

TL;DR: In this paper, a novel strategy for fabricating nitrogen doped graphene sheets has been developed using graphite oxide as the carbon source and urea as the nitrogen source via hydrothermal approach.

TL;DR: In this paper, the synthesis and characterization of SnO2@multiwalled carbon nanotubes (MWCNTs) nanocomposite as a high capacity anode material for sodium-ion battery was reported.

TL;DR: In this paper, the authors used an in-situ scanning vibrating electrode technique (SVET) to characterize local current density distributions over anodically-polarized Mg surfaces immersed in sodium chloride containing electrolyte.

TL;DR: Germanium thin film electrodes show a reversible Na-ion reaction at potentials around 0.15/0.6 ǫ as mentioned in this paper, which matches the value expected for the formation of NaGe.

TL;DR: A quaternary ammonium functionalized poly(fluorenyl ether) anion exchange membrane (AEM) with extremely low VO2++ permeation was characterized for vanadium redox flow battery (VRFB) application.

TL;DR: In this paper, the authors demonstrate a strong correlation between the phenomena of hysteresis and voltage fade in lithium- and manganese-rich layered transition-metal oxide electrodes.

TL;DR: In this article, the electrochemical surface area (ECA) calculation was studied using the charges associated with stripping of CO and underpotentially deposited H and Cu on highly dispersed Pt- and Pd-based nanoparticles.

TL;DR: In this article, a new electrolyte based on fluorinated solvents was studied in a high voltage Li-ion cell using graphite as the anode and 5-V spinel LiNi 0.5 Mn 1.5 O 4 as the cathode.

TL;DR: In this paper, the authors report significant electrochemical performances promoting SnSb as one of the most promising negative electrode material for rechargeable batteries, and propose a new negative material called carboxymethyl cellulose binder (SnSb).

TL;DR: In this paper, the first cycle sodiation and desodiation capacities of α-MoO 3 anode material were reported for the first time and the average sodiation potentials of the stable cycles lie below 1.0V with attractive voltage profiles.

TL;DR: In this article, the use of protic ionic liquids (PILs) as electrolyte for lithium-ion batteries was reported for the first time, and the results showed that the PIL electrolyte exhibited a conductivity comparable to that of aprotic ionicle liquids, and a stability window large enough to allow the realization of LIBs containing LFP as cathode and LTO as anode.

TL;DR: In this paper, the authors reveal that alloying adds of arsenic can impart significant corrosion resistance to Mg via retarding the cathodic reaction, which is a significant barrier in its widespread use.

TL;DR: A new electrochemically driven process (E-peroxone) was developed to treat methylene blue (MB) wastewater as discussed by the authors, where ozone generator effluent (O2 and O3 gas mixture) is continuously sparged into a reactor that has a carbon-polytetrafluorethylene (carbon-PTFE) cathode, which can electrochematically convert the sparging O2 to H2O2 effectively.

TL;DR: In this paper, the effect of electrochemically ageing hydrous nickel oxide films via slow repetitive potential multi-cycling across the main nickel (II/III) redox peak was investigated in an aqueous base environment using cyclic voltammetry and steady state polarisation curves in the oxygen evolution reaction (OER) region.

TL;DR: In this article, the first environmentally friendly hydrothermal synthesis of nickel sulfide nanospheres/reduced graphene oxide (nickel sulfides/rGO) nanocomposites with the use of L-cysteine as a reducing agent, sulfur donor, and linker was demonstrated.

TL;DR: In this paper, a non-aqueous lithium air cell is presented with a demonstration of a new reaction concept, involving a soluble redox shuttle to catalyse oxygen reduction, which can relieve the requirement for fast diffusion of molecular oxygen from the air interface to the positive electrode.

TL;DR: In this paper, an organo-fluorine compound, 1,1,2,2-tetrafluoroethyl (2, 2,3,3-TTE), was investigated for the first time as the electrolyte solvent in the lithium-sulfur battery.

TL;DR: In this paper, Li 7 La 3 Zr 2 O 12 (LLZ) and amorphous Li 3 BO 3 (BO 3 ) powders with cubic phase were obtained by a heat treatment of the precursor dried gel at 600°C.

TL;DR: In this article, the presence of trace metal residues in some supposedly metal-free catalysts for oxygen reduction, at concentrations which are difficult to detect using conventional methods such as XPS and EDX, can profoundly promote the ORR activity of the catalysts.

TL;DR: In this paper, a ternary semiconductor sensitizer-AgBiS2 for solar cells was presented, which was grown using a two-stage successive ionic layer adsorption and reaction process.

TL;DR: In this article, a facile electrochemical approach for deposition of graphene nanosheets on copper substrate was demonstrated and the corrosion activity of graphene coating over bare copper counterpart was investigated with potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques.

TL;DR: In this article, the mesoporous Fe2O3 nanoparticles were used as anode material for lithium-ion batteries and the phase structure, morphology, and pore nature were characterized systematically.

TL;DR: In this paper, thin films prepared by magnetron sputtering are evaluated as an anode material for Na-ion batteries. The starting material is composed of nanocrystallites with the desired tetragonal P4/nmm structure, and the study of the reaction mechanism reveals the formation of an amorphous/nanocrystalline phase of composition close to Na 3 Sb.

TL;DR: In this article, a new Cu metal-organic framework (Cu-MOF), [Cu(adp)(BIB)(H 2 O)] n (BIB = 1,4-bisimidazolebenzene; H 2 adp = ǫ-adipic acid), is synthesised under hydrothermal conditions.

TL;DR: In this article, a facile surface hydrolysis of Co-MOF-71 microcrystals in alkaline aqueous media via conformal transformation into a porous cobalt hydroxide is explained.