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: A promisingly dendritic core-shell nickel-iron-copper metal/metal oxide electrode, prepared via dealloying with an electrodeposited nickel-Iron-Copper alloy as a precursor, as the catalyst for water oxidation, suggesting that non-concerted proton-electron transfers participate in catalyzing the oxygen evolution reaction.
Abstract: Electrochemical water splitting requires efficient water oxidation catalysts to accelerate the sluggish kinetics of water oxidation reaction. Here, we report a promisingly dendritic core-shell nick ...
316 citations
TL;DR: This review is focused on the kinetics and mechanisms of thiol-disulfide substitution and redox reactions, and summarizes the challenges and advances associated with kinetic investigations in small molecular and enzymatic systems from a rigorous chemical perspective using biological examples.
Abstract: Significance: Disulfides are important building blocks in the secondary and tertiary structures of proteins, serving as inter- and intra-subunit cross links. Disulfides are also the major products of thiol oxidation, a process that has primary roles in defense mechanisms against oxidative stress and in redox regulation of cell signaling. Although disulfides are relatively stable, their reduction, isomerisation, and interconversion as well as their production reactions are catalyzed by delicate enzyme machineries, providing a dynamic system in biology. Redox homeostasis, a thermodynamic parameter that determines which reactions can occur in cellular compartments, is also balanced by the thiol–disulfide pool. However, it is the kinetic properties of the reactions that best represent cell dynamics, because the partitioning of the possible reactions depends on kinetic parameters. Critical Issues: This review is focused on the kinetics and mechanisms of thiol–disulfide substitution and redox reactions...
316 citations
TL;DR: Porous electrocatalytic electrodes for the polysulfide redox system, containing one of various metallic sulfides (especially of Co, Cu, Pb) are described in this article, where the short and long term stability of the electrodes, as cathodes, is discussed, and it is shown that when used in conjunction with photoanodes, and may poison the photoelectrode surface, thereby reducing total cell efficiency.
Abstract: Porous electrocatalytic electrodes for the polysulfide redox system, containing one of various metallic sulfides (especially of Co, Cu, Pb) are described. Emphasis is placed on their use as counterelectrodes in photoelectrochemical cells employing polysulfide electrolytes. Their activity is measured as a function of electrolyte temperature and composition. The ratio of S to S2−, and through it the local redox potential of the solution, is shown to be an important factor controlling electrode activity. The short and long term stability of the electrodes, as cathodes, is discussed, and it is shown that, when used in conjunction with photoanodes, and may poison the photoelectrode surface, thereby reducing total cell efficiency.
315 citations
315 citations
TL;DR: A variety of proteins, including transcription factors, molecular chaperones and protein tyrosine phosphatases, are regulated via redox processes, and common mechanisms underlie the sensitivity of cysteines to redox, such as proximity to polar and charged groups.
315 citations