Modulating metal–organic frameworks for catalyzing acidic oxygen evolution for proton exchange membrane water electrolysis

SusMat

article

Xiaomin Xu¹  Hainan Sun²  San Ping Jiang¹  Zongping Shao¹ 

[1] WA School of Mines: Minerals, Energy and Chemical Engineering ,(WASM-MECE), Curtin University;Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology;State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University

关键词: acidic water oxidation;    electrocatalysis;    hydrogen production;    metal–organic frameworks;    oxygen evolution reaction;    proton exchange membrane water electrolysis;   

DOI  :  10.1002/sus2.34

学科分类：电力

来源: Wiley

【 摘 要 】

Proton exchange membrane (PEM) water electrolysis represents one of the most promising technologies to achieve green hydrogen production, but currently its practical viability is largely affected by the slow reaction kinetics of the anodic oxygen evolution reaction (OER) in an acidic environment. While noble metal-based catalysts containing iridium or ruthenium are excellent catalysts for the acidic OER, their practical use in PEM electrolyzers is hindered due to their low abundance and high cost. Most recently, metal–organic frameworks (MOFs) have been demonstrated as a perfect platform to facilitate the design of acidic OER catalysts with both high efficiency and cost-effectiveness. Here, we provide a timely and comprehensive overview of the recent progress on MOF-based acidic OER catalysts. The fundamental mechanisms of the acidic OER are first introduced, followed by a summary of the development of pristine MOFs and MOF derivatives as acidic OER catalysts. Importantly, a number of catalyst design strategies are discussed aiming at improving the acidic OER catalytic performance of MOF-based candidates. The integration of MOF-based catalysts into real PEM water electrolyzers is also included. Finally, future research directions are provided to achieve better MOF-based catalysts operational in acidic environments and PEM devices.

【 授权许可】

CC BY