Topic
Redox
About: Redox is a research topic. Over the lifetime, 26853 publications have been published within this topic receiving 862368 citations. The topic is also known as: reduction-oxidation & reduction-oxidation reaction.
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TL;DR: Evidence is provided that alteration of cellular redox states by treating cells with H2O2 or dithiothreitol impairs hypoxia signaling mechanisms and the expression of HIF-1 alpha protein in hypoxic cells.
172 citations
31 Aug 2012
TL;DR: The effects and parameters influencing RedOx cycles of the Ni-ceramic anode are reviewed and solutions for RedOx instability are described from the point of view of the system, stack design, cell design, new materials and microstructure optimization.
Abstract: Solid oxide fuel cells are able to convert fuels, including hydrocarbons, to electricity with an unbeatable efficiency even for small systems. One of the main limitations for long-term utilization is the reduction-oxidation cycling (RedOx cycles) of the nickel-based anodes. This paper will review the effects and parameters influencing RedOx cycles of the Ni-ceramic anode. Second, solutions for RedOx instability are reviewed in the patent and open scientific literature. The solutions are described from the point of view of the system, stack design, cell design, new materials and microstructure optimization. Finally, a brief synthesis on RedOx cycling of Ni-based anode supports for standard and optimized microstructures is depicted.
172 citations
TL;DR: Several electrode materials have been evaluated for their suitability as positive electrodes in a new, all-vanadium redox cell and iridium oxide-coated anode has shown excellent electrochemical characteristics and stability over several charge/discharge cyc as discussed by the authors.
172 citations
171 citations
TL;DR: In this article, the electrocatalytic activity of mixed Ru-Ir oxide electrodes fabricated by thermal decomposition is compared using cyclic voltammetry and potentiodynamic technique, for their ability to evolve hydrogen and oxygen in both 1N H 2 SO 4 and 1N NaOH solutions.
Abstract: The electrocatalytic activity of mixed Ru-Ir oxide electrodes fabricated by thermal decomposition are compared (using cyclic voltammetry and potentiodynamic technique), for their ability to evolve hydrogen and oxygen in both 1N H 2 SO 4 and 1N NaOH solutions. Cyclic voltammetry provides information about the redox transitions of surface oxyruthenium and oxiridium groups, and also generates an effective index, (voltammetric charge (q * )), which can be used to determine the electrocatalytic activity of the electrode
171 citations