Circumventing Challenges: Design of Anodic Electrocatalysts for Hybrid Water Electrolysis Systems,Advanced Energy Materials

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Circumventing Challenges: Design of Anodic Electrocatalysts for Hybrid Water Electrolysis Systems
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2022-12-15 , DOI: 10.1002/aenm.202203568
Hao‐Yu Wang ₁ , Ming‐Lei Sun ₁ , Jin‐Tao Ren ₁ , Zhong‐Yong Yuan _{1,

2}

Affiliation

Water electrolysis, driven by renewable energy resources, is a promising energy conversion technology that has gained intensive interest in recent years. However, conventional water electrolysis faces a number of challenges, including large thermodynamic potential gaps, valueless anodic products, explosive hydrogen/oxygen mixtures, reactive oxygen species, and limited pure water. Hybrid water electrolysis, appending different electrolytes in the anode compartment to circumvent the above-mentioned challenges in conventional water electrolysis, is a particularly attractive alternative. In this review, for the first time, a holistic and subtle description of hybrid water electrolysis is provided, focusing on the design of high-activity/selectivity/stability anodic electrocatalysts for the electrochemical oxidation of various chemicals, such as alcohol, aldehyde, amine, urea and hydrazine, or the oxygen evolution reaction in seawater electrolytes. Comprehensive judging criteria for anodic oxidation reactions, electrocatalysts, and reaction parameters in hybrid water electrolysis are discussed. Some technoeconomic assessments, feasibility analyses, mechanism explorations, and correlation comparisons are involved. Finally, perspectives on and opportunities for future research directions in hybrid water electrolysis systems are outlined.

中文翻译：

规避挑战：用于混合水电解系统的阳极电催化剂设计

由可再生能源驱动的水电解是一种很有前途的能源转换技术，近年来受到广泛关注。然而，传统的水电解面临着许多挑战，包括大的热力学势差、无价值的阳极产物、爆炸性的氢/氧混合物、活性氧和有限的纯水。混合水电解，在阳极室中添加不同的电解质，以规避传统水电解中的上述挑战，是一种特别有吸引力的选择。在这篇综述中，首次对混合水电解进行了全面而细致的描述，重点关注用于各种化学品电化学氧化的高活性/选择性/稳定性阳极电催化剂的设计，如醇、醛、胺、尿素和肼，或海水电解液中的析氧反应。讨论了混合水电解中阳极氧化反应、电催化剂和反应参数的综合判断标准。涉及一些技术经济评估、可行性分析、机理探索和相关性比较。最后，概述了混合水电解系统未来研究方向的前景和机遇。并涉及相关比较。最后，概述了混合水电解系统未来研究方向的前景和机会。并涉及相关比较。最后，概述了混合水电解系统未来研究方向的前景和机会。

更新日期：2022-12-15

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