Journal ArticleDOI
Comparison of high surface Pt/C catalysts by cyclic voltammetry
TLDR
In this article, a detailed procedure for comparing high surface Pt/C catalysts was pointed out, and the real platinum metal surface area was evaluated by cyclic voltammetry on a thin porous coated disk electrode.About:
This article is published in Journal of Power Sources.The article was published on 2002-03-05. It has received 863 citations till now. The article focuses on the topics: Cyclic voltammetry & Platinum.read more
Citations
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Design of electrocatalysts for oxygen- and hydrogen-involving energy conversion reactions
TL;DR: The emphasis of this review is on the origin of the electrocatalytic activity of nanostructured catalysts toward a series of key clean energy conversion reactions by correlating the apparent electrode performance with their intrinsic electrochemical properties.
Journal ArticleDOI
Heterogeneous catalysis on chitosan-based materials: a review
TL;DR: Chitosan is an optically active biopolymer that is characterized by a strong affinity for transition metals and can be used as a support for the preparation of heterogeneous catalysts in the form of colloids, flakes, gel beads, fibers and other metal oxides as discussed by the authors.
Journal ArticleDOI
Highly Ordered Pd Nanowire Arrays as Effective Electrocatalysts for Ethanol Oxidation in Direct Alcohol Fuel Cells
TL;DR: In this article, the AAO template was used to construct a high-order metal nanowire arrays (NWAs) with uniform and tunable porous structure and good mechanical and thermal stability.
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Poly(vinylpyrrolidone)-modified graphite carbon nanofibers as promising supports for PtRu catalysts in direct methanol fuel cells.
TL;DR: It was found that the PVP-grafted carbon nanomaterials have much less loss in the electric conductivity and thus better electrocatalytic performance, 17-463% higher, than their corresponding acid oxidation-treated nanocomposites.
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Functionalization of carbon nanotubes by an ionic-liquid polymer: dispersion of Pt and PtRu nanoparticles on carbon nanotubes and their electrocatalytic oxidation of methanol
TL;DR: Metal nanoparticle/CNT nanohybrids are synthesized from carbon nanotubes (CNTs) functionalized with an ionic-liquid polymer and show good performance in methanol electrooxidation.
References
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Journal ArticleDOI
X-ray line broadening from filed aluminium and wolfram
G.K Williamson,W.H Hall +1 more
TL;DR: In this paper, the authors used a Geiger counter spectrometer to measure the changes in intensity distribution in the spectra of cold worked aluminium and wolfram and found that the line breadths may be attributed to simultaneous small particle size and strain broadening, the latter predominating at the higher Bragg angles.
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Influence of Nafion loading in the catalyst layer of gas-diffusion electrodes for PEFC
TL;DR: The effect of Nafion loading in the catalyst layer of cathodes for polymer electrolyte fuel cells (PEFCs) was investigated in this article, where an optimum loading was found to correspond to a minimum in the polarization resistance and in the oxygen reduction overpotential and a maximum in the electrochemical active area.
Journal ArticleDOI
Effects of Nafion impregnation on performances of PEMFC electrodes
TL;DR: In this article, the effect of Nafion loading on the electrode polarization characteristics of a conventional proton exchange membrane (PEM) fuel cell electrode has been investigated in terms of both H 2/O2 and H2/air performance.
Journal ArticleDOI
Oxygen electrocatalysis on thin porous coating rotating platinum electrodes
TL;DR: In this paper, the effect of Pt particle size on the oxygen reduction electrocatalysis in both electrolytes is correlated with the predominant facets of the platinum crystallites, and the dc polarization and impedance results show clearly a duplication of the Tafel slope due to structural effects on the porous electrode.
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Evaluation of Platinum‐Based Catalysts for Methanol Electro‐oxidation in Phosphoric Acid Electrolyte
TL;DR: Carbon-supported catalysts of Pt, Pt/Ru/Pd were evaluated for the electro-oxidation of methanol in phosphoric acid at 180 C using cyclic voltammetry and x-ray diffraction as mentioned in this paper.