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Mediated Fuel Cells: Soluble Redox Mediators and Their Applications to Electrochemical Reduction of O2 and Oxidation of H2, Alcohols, Biomass, and Complex Fuels.
Chemical Reviews ( IF 51.4 ) Pub Date : 2020-03-27 , DOI: 10.1021/acs.chemrev.9b00717
Colin W Anson 1 , Shannon S Stahl 1
Affiliation  

Mediated fuel cells are electrochemical devices that produce power in a manner similar to that of conventional proton exchange membrane fuel cells (PEMFCs). They differ from PEMFCs in their use of redox mediators dissolved in liquid electrolyte to conduct oxidation of the fuel or reduction of the oxidant, typically O2, in bulk solution. The mediators transport electrons (and often protons) between the electrode and the catalysts or chemical reagents in solution. This strategy can help overcome many of the challenges associated with conventional fuel cells, including managing complex multiphase reactions (as in O2 reduction) or the use of challenging or heterogeneous fuels, such as hydrocarbons, polyols, and biomass. Mediators are also commonly used in enzymatic fuel cells, where direct electron transfer from the electrode to the enzymatic active site can be slow. This review provides a comprehensive survey of historical and recent mediated fuel cell efforts, including applications using chemical and enzymatic catalysts.

中文翻译:


介导燃料电池:可溶性氧化还原介体及其在 O2 电化学还原和 H2、醇类、生物质和复杂燃料氧化中的应用。



介导燃料电池是一种电化学装置,其发电方式与传统质子交换膜燃料电池(PEMFC)类似。它们与 PEMFC 的不同之处在于,它们使用溶解在液体电解质中的氧化还原介体来进行燃料的氧化或本体溶液中氧化剂(通常是 O2)的还原。介体在电极和溶液中的催化剂或化学试剂之间传输电子(通常是质子)。该策略可以帮助克服与传统燃料电池相关的许多挑战,包括管理复杂的多相反应(如氧气还原)或使用具有挑战性或异质燃料,例如碳氢化合物、多元醇和生物质。介体也常用于酶燃料电池,其中从电极到酶活性位点的直接电子转移可能很慢。这篇综述对历史和最近介导的燃料电池工作进行了全面的调查,包括使用化学和酶催化剂的应用。
更新日期:2020-04-23
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