近日，悉尼科技大学的 Bingjie Ni 教授团队在 Sustainable Horizons 发表综述文章“Hybrid Water Electrolysis: A New Sustainable Avenue for Energy-Saving Hydrogen Production”。
本文着重探讨了常见小分子（尿素、肼、生物质等）的氧化反应机理，并综合分析了应用于耦合电解产氢的典型催化剂的进展，重点揭示了催化剂的构效关系，为小分子氧化耦合电解产氢的新型反应和催化剂的设计提供了理论依据。
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Highlights
·Recent advances in sustainable hybrid water electrolysis are reviewed.
·The mechanisms of alternative oxidation reactions are summarized.
·The design of advanced catalysts for hybrid water electrolysis is analyzed.
·Future perspectives in hybrid water electrolysis are pointed out.
- 研究方法 -
开发耦合电解制氢对于推进全球可持续能源计划具有重要意义。本文首先介绍了典型电化学氧化反应的基本原理。然后，分析了用于耦合电解制氢的电催化剂的最新进展，并概述了许多有效的催化剂设计策略，以及催化剂的构效关系。
1. 小分子氧化机理
本文探讨了典型小分子电氧化的反应机理，着重对尿素、肼、生物质的催化过程进行了系统分析，并对影响反应选择性的因素进行了讨论。
2. 电催化剂的研究进展
电催化剂可以降低反应能垒，促进反应动力学，调节反应选择性，提高能量利用效率。本文总结了一系列应用于耦合电解产氢系统的高效催化剂的催化性能，随后，根据催化剂的化学组成特性，详细探讨了当下应用于耦合电解产氢系统中的高性能电催化剂的设计策略，并强调了催化剂的构效关系。
- 结论和展望 -
为实现耦合电解制氢的规模化和商业化应用，一些关键方面需要进一步探索。
首先，将理论计算-机器学习策略应用于电催化剂的开发将显著加速新型高效催化剂的设计，并能够更深入地了解催化剂的构效关系；其次，需要结合原位技术和分析方法来监测反应中间体并探索电化学反应过程中可能发生的催化剂的表面重构过程，这将有利于理解电化学氧化过程以及高性能催化剂的设；第三，开发基于地球丰富元素的双功能催化剂用于耦合电解制氢对于降低运行成本、简化装置具有重要意义；第四，开发新的氧化反应，特别是基于生物质和污染物的电氧化反应，以期在低能耗产氢的同时收获高附加值产品或降解污染物；最后，对于耦合电解制氢的大规模商业应用，有必要集成电解系统与太阳能利用系统，以进一步降低制氢的能源成本。
作者简介
First Author: Zhijie Chen received his B.S. and M.S. degrees from the Wuhan University of Technology in 2015 and 2018, respectively. He is currently pursuing his Ph.D. degree at the University of Technology Sydney. His research work focuses on the eco-design of nanomaterials for advanced energy/environmental applications.
Corresponding Author: Prof. Bing-Jie Ni received his Ph.D. degree in environmental engineering in June 2009. He joined the Technical University of Denmark as a postdoctoral research fellow in September of 2009 and then joined The University of Queensland in February 2011 as a senior research fellow. He currently is a full professor in environmental engineering. He has been working in the field of renewable energy production, particularly the interface between chemical engineering and environmental technology. His work focuses on the integration of these disciplines to develop innovative and sustainable technological solutions to achieve efficient energy generation from renewable resources.
Acknowledgments
This work is supported by the Australian Research Council (ARC) Future Fellowship (FT160100195). Dr. Wei Wei acknowledges the support of the Australian Research Council (ARC) through project DE220100530. Mr. Zhijie Chen also thanks to the support from China Scholarship Council (CSC).
引用格式：
Chen Z. , Wei W. , Song L. , Ni B. , Hybrid Water Electrolysis: A New Sustainable Avenue for Energy-Saving Hydrogen Production. Sustainable Horizons. 2022. 1, 100002.
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