Whooping Cough in Infancy

O’Grady, Roberta S.; Dolan, Thomas M.

doi:10.2307/3423752

Cited by 1 publication

(1 citation statement)

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“…The OER is a four-electron process with a more complicated mechanism and slower kinetic than the HER. Matsumoto and Sato [77] reviewed the OER mechanism on various transition metal oxides in acidic and alkaline electrolytes, including the Krasil'shchikov path, [78] the Bockris path, [79] the Yeager's path, [80] oxide and electrochemical oxide path. [81] In alkaline media, all of the mechanisms begin with the necessary step of hydroxide coordination (Equation 4) to the active sites and followed by other intermediate formations including the oxidation of OH* to O* and O* to OOH*.…”

Section: Mechanism Of the Oer In Alkaline Electrolytesmentioning

confidence: 99%

Bifunctional Heterostructured Transition Metal Phosphides for Efficient Electrochemical Water Splitting

Zhang

Maijenburg

et al. 2020

Adv Funct Materials

412

273

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Reducing green hydrogen production costs is essential for developing a hydrogen economy. Developing cost-effective electrocatalysts for water electrolysis is thus of great research interest. Among various material candidates, transition metal phosphides (TMP) have emerged as robust bifunctional electrocatalysts for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) due to their various phases and tunable electronic structure. Recently, heterostructured catalysts have exhibited significantly enhanced activities toward HER/OER. The enhancement can be attributed to the increased amount of accessible active sites, accelerated mass/charge transfer, and optimized adsorption of intermediates, which arise from the synergistic effects of the heterostructure. Herein, a comprehensive overview of the recent progress of bifunctional TMP-based heterostructure is introduced to provide an insight into their preparation and corresponding reaction mechanisms. It starts with summarizing general fundamental aspects of HER/OER and the synergistic effect of heterostructures for enhanced catalytic activity. Next, the innovational strategies to design and construct bifunctional TMP-based heterostructures with enhanced overall water splitting activity, as well as the related mechanisms, are discussed in detail. Finally, a summary and perspective for further opportunities and challenges are highlighted for the further development of bifunctional TMP-based heterostructures from the points of practical application and mechanistic studies.

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