IF 45.8 1区 综合性期刊Q1 MULTIDISCIPLINARY SCIENCESSciencePub Date : 2025-02-13
Andrew D. Pendergast, Shannon W. Boettcher
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引用次数: 0
Abstract
Using renewable electricity to produce hydrogen fuel reduces reliance on fossil fuels. Proton exchange membrane water electrolyzers (PEMWEs) are the highest-performing commercialized technology (1). These devices split water into oxygen gas and hydrogen ions (protons) at the anode. The protons then migrate through an ion-conducting polymer membrane (ionomer) to be reduced to hydrogen gas at the cathode. The anode reaction’s harsh environment requires the use of precious-metal catalysts, such as iridium oxide (IrOx). Given the expense and scarcity, the design of electrodes that minimize the use of precious metals without compromising the requisite stability and activity is desired for large-scale hydrogen production (2, 3). On page 791 of this issue, Shi et al. (4) report that anchoring IrOx catalysts onto porous cerium-oxide (CeOx) supports maintains performance even with much reduced precious metal use.
期刊介绍：
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