Showing papers in "Electrochemistry Communications in 2004"

TL;DR: In this paper, the performance of 0.3Li 2 MnO 3, 0.7LiMn 0.5 Ni 0.35 O 2 composite electrodes was compared with the behavior of electrodes that were preconditioned by acid treatment, showing that acid treatment significantly reduces the coulombic inefficiency of the initial charge/discharge cycle of the cells.

TL;DR: In this paper, the GGA+U method was used to calculate the potential of LiMPO 4 and LiMSiO 4 compounds with M = Fe, Mn, Co and Ni.

TL;DR: In this paper, a palladium-based alloys catalysts without platinum for the oxygen reduction reaction (ORR) in an acid medium were shown for the first time and their electrochemical characteristics for ORR were determined at 30 °C in sulphuric acid.

TL;DR: A novel method to fabricate a hydrogen peroxide sensor was developed by immobilizing horseradish peroxidase (HRP) on colloidal An modified ITO conductive glass support and the resulted biosensor exhibited high sensitivity, good reproducibility, and long-term stability.

TL;DR: In this paper, the electrocatalytic oxidation of glucose in alkaline medium directly at well-aligned multi-wall carbon nanotubes (MWNTs) electrodes has been investigated.

TL;DR: In this article, the authors demonstrate that by combining specially designed anodes, consisting of platinum covered by poly(tetrafluoroaniline) and living cells of the biocatalyst Clostridium butyricum or C. beijerinckii electricity can be generated from a variety of substrates, including starch, one of the major biomass constituents.

TL;DR: In this article, the use of ionic liquids based on 1-buthyl-3-methyl-imidazolium as electrolytes in an activated carbon/poly(3methylthiophene) hybrid supercapacitor was investigated.

TL;DR: In this article, the Si-C composites exhibit a reversible lithium storage capacity of 1450 mA/h/g when used as anodes in lithium-ion cells.

TL;DR: In this article, nanostructured and microporous nickel-manganese oxide (NMO) and cobalt-nodes oxide (CMO) electrodes were deposited by potentiodynamic method onto inexpensive stainless steel substrate.

TL;DR: In this article, the authors compared the thermal stability of three different cathode materials, LiCoO2, Li[Ni0.1Co0.8Mn 0.1]O2 and LiFePO4, in EC/DEC solvent and in 1.0 M LiPF6 EC/dec or 0.8 M LiBoB EC-DEC electrolytes.

TL;DR: In this paper, a composite of Ag metal and Li4Ti5O12 was simply prepared by solid-state reaction with the addition of AgNO3 to the starting materials, TiO2 and Li2CO3.

TL;DR: The use of ionic liquids (IL) as electrolytes for electrochemical applications involving carbon nanotube (CNT) electrodes has been investigated in a brief initial study as discussed by the authors.

TL;DR: In this paper, the catalytic, corrosion and sintering properties of Pt/C and Pt3Ni1/C catalysts were evaluated using an accelerated durability test (ADT).

TL;DR: Carbon nanotubes paste electrodes (CNTPE) have been shown to be suitable for adsorptive stripping potentiometric measurements of trace levels of nucleic acids as discussed by the authors.

TL;DR: In this paper, shape-dependent electrocatalysis for the ammonia oxidation reaction is reported. But the results show that the anodic current density is very sensitive to the existence of Pt(1−0−0) domains.

TL;DR: In this article, carbon nanotubes (MWCNTs) have been used for adsorptive stripping voltammetry of the 2,4,6-trinitrotoluene (TNT) explosive down to sub-μg/l level.

TL;DR: In this article, a monolayer butyrylcholine (BuCh) modified glassy carbon electrode (GCE) was first prepared by electrochemical method, and it was demonstrated that the BuCh was hydrolyzed to choline (Ch) and butyric acid during the electrochemical planting process.

TL;DR: In this article, a deoxygenated aqueous solution containing 0.1 M HCl was used to synthesize ultrafine silver nanoparticles with diameters less than 2 nm.

TL;DR: A carbon-coated nano-Si dispersed oxides/graphite composite has been prepared and investigated as a potential anode material for lithium ion batteries as discussed by the authors, which showed excellent cycling performance with a reasonable value of the first irreversible capacity, attributed to the uniform distribution of nano-sized Si phase, buffering action of graphite and an enhanced connection for electronic and ionic conduction by carboncoating.

TL;DR: In this paper, a graphite disc electrode in the acidic solution of KMnO4 resulted in the deposition of a redox active coating on the electrode surface, which exhibited typical pseudo-capacitive behaviour.

TL;DR: In this article, the formation of self-organized porous layer of ZrO 2 by anodization of zirconium in H 2 SO 4 electrolytes containing low concentrations of NH 4 F was reported.

TL;DR: In this article, the first time that silicon can be well electrodeposited on the nanoscale in the room temperature ionic liquid 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide saturated with SiCl 4 was reported.

TL;DR: In this article, the fluorinated polyanilines poly(2-fluoroaniline) and poly( 2,3,5,6-tetrafluoroaniliine) outstrip the parent compound polyAniline in their performance as an electrode modifier.

TL;DR: In this paper, a design for a novel micro direct methanol fuel cell (μ-DMFC) of 0.018 cm2 active area is described, which was prepared using a series of fabrication steps from micro-machined silicon wafer including photolithography, deep reactive ion etching, and electron beam deposition.

TL;DR: In this article, a cleaned gold electrode was first immersed in a hydrolyzed sol of the precursor (3-mercaptopropyl)-trimethoxysilane to assemble three-dimensional silica gel, then the GNPs were chemisorbed onto the thiol groups of the sol-gel network and modified the kinetic barrier of this self-assembled silicate film.

TL;DR: In this paper, all-solid state dye sensitized solar cells were fabricated using in situ photo-electrochemically polymerized poly(3,4-ethylenedioxythiophene) (PEDOT) as a hole transport phase.

TL;DR: The electrochemical lithium insertion properties of tin-filled multi-walled carbon nanotubes are described in this paper, where two methods, an NaBH4-reduction process and a hydrothermal process, were employed to reduce the salt to the metal.

TL;DR: In this paper, the catalytic activity for ethanol oxidation is studied as a function of the atomic composition of PtRu electrodeposits, and it is shown that Ru has no activity towards ethanol oxidation at room temperature.

TL;DR: This communication reports on initial studies of a membrane-less biofuel cell concept using an osmium-based redox polymer for laccase- mediated reduction of oxygen coupled to glucose oxidase-mediated oxidation of glucose, and targets two redox polymers of potential use.

TL;DR: In this paper, the authors report on electrochemical synthesis of silver nanoflakes and nanorods by potentiostatic reduction of silver ions on highly oriented pyrolytic graphite electrode from acetonitrile solution containing mercaptopropionic acid.