Single-Atom Catalysts for Hydrogen Generation: Rational Design, Recent Advances, and Perspectives,Advanced Energy Materials

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Single-Atom Catalysts for Hydrogen Generation: Rational Design, Recent Advances, and Perspectives
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2022-06-01 , DOI: 10.1002/aenm.202200875
Chenyu Zhang ₁ , Hou Wang ₁ , Hanbo Yu ₁ , Kaixin Yi ₁ , Wei Zhang ₁ , Xingzhong Yuan ₁ , Jinhui Huang ₁ , Yaocheng Deng ₂ , Guangming Zeng ₁

Affiliation

Hydrogen is widely believed to be a promising fuel to solve the global energy crisis and environmental issues. The catalytic system represented by metal-supported catalysts is an important process of upgrading the hydrogen source in industry. Single-atom catalysts (SACs), which inherit the advantages of homogeneous and heterogeneous catalysts, provide a broad prospect for low-cost H₂ production technology. This review focuses on the potential mechanisms in the rational design of SACs, including active sites, coordination configuration, mass loading, heteroatom-doping, and metal−support interaction. The design strategies of single metal atoms on different supports are reviewed to give a proposal on how to immobilize the atomic active sites and modulate the geometric/electronic structures of SACs. Subsequently, the synergistic effect in SACs and the dynamic evolution of the atomically dispersed heterometal catalysts are introduced, aiming to provide further guidelines for H₂ evolution SACs. H₂ generation from the water−gas shift reaction and electro-/photocatalytic water splitting are the main research directions at present. The latest progress of SACs employed in these applications is thoroughly reviewed. At the end of this review, personal perspectives on the prospects and challenges of H₂ evolution SACs are put forward, hoping to promote the rapid development of SACs toward superior H₂ evolution performance.

中文翻译：

用于制氢的单原子催化剂：合理设计、最新进展和展望

氢被广泛认为是解决全球能源危机和环境问题的有前途的燃料。以金属负载催化剂为代表的催化体系是工业上氢源升级的重要过程。单原子催化剂（SACs）继承了均相和非均相催化剂的优点，为低成本的H _{2提供了广阔的前景}生产技术。本综述侧重于 SAC 合理设计的潜在机制，包括活性位点、配位构型、质量负载、杂原子掺杂和金属-载体相互作用。回顾了单个金属原子在不同载体上的设计策略，提出了如何固定原子活性位点和调节 SACs 的几何/电子结构的建议。随后，介绍了 SACs 中的协同效应和原子分散的异金属催化剂的动态演化，旨在为 H ₂演化 SACs 提供进一步的指导。H ₂水煤气变换反应生成和电/光催化水分解是目前的主要研究方向。对这些应用中使用的 SAC 的最新进展进行了彻底审查。在本综述的最后，提出了个人对H ₂演化SACs 的前景和挑战的看法，希望能推动SACs 快速向H ₂演化性能优异的方向发展。

更新日期：2022-06-01

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