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Recent Advances in Electrocatalysts for Alkaline Hydrogen Oxidation Reaction
Small ( IF 13.0 ) Pub Date : 2021-06-23 , DOI: 10.1002/smll.202100391 Ruopeng Zhao 1, 2 , Xin Yue 1 , Qinghua Li 1 , Gengtao Fu 3 , Jong-Min Lee 2 , Shaoming Huang 1
Small ( IF 13.0 ) Pub Date : 2021-06-23 , DOI: 10.1002/smll.202100391 Ruopeng Zhao 1, 2 , Xin Yue 1 , Qinghua Li 1 , Gengtao Fu 3 , Jong-Min Lee 2 , Shaoming Huang 1
Affiliation
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With the rapid development of anion-exchange membrane technology and adequate supply of high-performance non-noble metal oxygen reduction reaction (ORR) catalysts in alkaline media, the commercialization of anion exchange membrane fuel cells (AEMFCs) become possible. However, the kinetics of the anodic hydrogen oxidation reaction (HOR) in AEMFCs is significantly decreased compared to the HOR in proton exchange membrane fuel cells (PEMFCs). Therefore, it is urgent to develop HOR catalysts with low price, high activity, and robust stability. However, comprehensive timely reviews on this specific subject do not exist enough yet and it is necessary to update reported major achievements and to point out future investigation directions. In this review, the current reaction mechanisms on HOR are summarized and deeply understood. The debates between the mechanisms are greatly harmonized. Recent advances in developing highly active and stable electrocatalysts for the HOR are reviewed. Moreover, the side reaction control is for the first time systematically introduced. Finally, the challenges and future opportunities in the field of HOR catalysis are outlined.
中文翻译：
碱性氢氧化反应电催化剂的新进展
随着阴离子交换膜技术的快速发展和碱性介质中高性能非贵金属氧还原反应（ORR）催化剂的充足供应，阴离子交换膜燃料电池（AEMFCs）的商业化成为可能。然而，与质子交换膜燃料电池 (PEMFC) 中的阳极氧化反应 (HOR) 相比，AEMFC 中的阳极氧化反应 (HOR) 的动力学显着降低。因此，迫切需要开发价格低廉、活性高、稳定性强的HOR催化剂。然而，对这一特定主题的全面及时审查还不够，有必要更新报告的主要成就并指出未来的调查方向。在这篇综述中，总结并深入理解了当前对 HOR 的反应机制。机制之间的争论非常协调。综述了开发高活性和稳定的 HOR 电催化剂的最新进展。此外，首次系统地引入了副反应控制。最后，概述了 HOR 催化领域的挑战和未来机遇。
更新日期：2021-06-23
中文翻译：
碱性氢氧化反应电催化剂的新进展
随着阴离子交换膜技术的快速发展和碱性介质中高性能非贵金属氧还原反应（ORR）催化剂的充足供应，阴离子交换膜燃料电池（AEMFCs）的商业化成为可能。然而，与质子交换膜燃料电池 (PEMFC) 中的阳极氧化反应 (HOR) 相比，AEMFC 中的阳极氧化反应 (HOR) 的动力学显着降低。因此，迫切需要开发价格低廉、活性高、稳定性强的HOR催化剂。然而，对这一特定主题的全面及时审查还不够，有必要更新报告的主要成就并指出未来的调查方向。在这篇综述中，总结并深入理解了当前对 HOR 的反应机制。机制之间的争论非常协调。综述了开发高活性和稳定的 HOR 电催化剂的最新进展。此外，首次系统地引入了副反应控制。最后，概述了 HOR 催化领域的挑战和未来机遇。
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