{"title":"Perfecting HER catalysts via defects: Recent advances and perspectives","authors":"Chengguang Lang , Yantong Xu , Xiangdong Yao","doi":"10.1016/S1872-2067(24)60105-1","DOIUrl":null,"url":null,"abstract":"<div><p>Defect engineering has become a promising approach to improve the performance of hydrogen evolution reaction (HER) catalysts. Non-noble transition metal-based catalysts (TMCs) have shown significant promise as effective alternatives to traditional platinum-group catalysts, attracting considerable attention. However, the industrial application of TMCs in electrocatalytic hydrogen production necessitates further optimization to boost both catalytic activity and stability. This review comprehensively examines the types, fabrication methods, and characterization techniques of various defects that enhance catalytic HER activity. Key advancements include optimizing defect concentration and distribution, coupling heteroatoms with vacancies, and leveraging the synergy between bond lengths and defects. In-depth discussions highlight the electronic structure and catalytic mechanisms elucidated through <em>in-situ</em> characterization and density functional theory calculations. Additionally, future directions are identified, exploring novel defect types, emphasizing precision synthesis methods, industrial-scale preparation techniques, and strategies to enhance structural stability and understanding the in-depth catalytic mechanism. This review aims to inspire further research and development in defect-engineered HER catalysts, providing pathways for high efficiency and cost-effectiveness in hydrogen production.</p></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"64 ","pages":"Pages 4-31"},"PeriodicalIF":15.7000,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chinese Journal of Catalysis","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1872206724601051","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
Defect engineering has become a promising approach to improve the performance of hydrogen evolution reaction (HER) catalysts. Non-noble transition metal-based catalysts (TMCs) have shown significant promise as effective alternatives to traditional platinum-group catalysts, attracting considerable attention. However, the industrial application of TMCs in electrocatalytic hydrogen production necessitates further optimization to boost both catalytic activity and stability. This review comprehensively examines the types, fabrication methods, and characterization techniques of various defects that enhance catalytic HER activity. Key advancements include optimizing defect concentration and distribution, coupling heteroatoms with vacancies, and leveraging the synergy between bond lengths and defects. In-depth discussions highlight the electronic structure and catalytic mechanisms elucidated through in-situ characterization and density functional theory calculations. Additionally, future directions are identified, exploring novel defect types, emphasizing precision synthesis methods, industrial-scale preparation techniques, and strategies to enhance structural stability and understanding the in-depth catalytic mechanism. This review aims to inspire further research and development in defect-engineered HER catalysts, providing pathways for high efficiency and cost-effectiveness in hydrogen production.
缺陷工程已成为提高氢进化反应(HER)催化剂性能的一种前景广阔的方法。作为传统铂族催化剂的有效替代品,非贵金属基催化剂(TMCs)已显示出巨大的发展前景,引起了广泛关注。然而,TMCs 在电催化制氢中的工业应用需要进一步优化,以提高催化活性和稳定性。本综述全面探讨了可提高催化氢氧活性的各种缺陷的类型、制造方法和表征技术。主要进展包括优化缺陷浓度和分布、将杂原子与空位耦合,以及利用键长和缺陷之间的协同作用。深入的讨论突出了通过原位表征和密度泛函理论计算阐明的电子结构和催化机制。此外,还确定了未来的研究方向,探讨了新型缺陷类型,强调了精密合成方法、工业规模制备技术以及增强结构稳定性和深入了解催化机理的策略。本综述旨在激发对缺陷工程 HER 催化剂的进一步研究和开发,为高效、经济地制氢提供途径。
期刊介绍:
The journal covers a broad scope, encompassing new trends in catalysis for applications in energy production, environmental protection, and the preparation of materials, petroleum chemicals, and fine chemicals. It explores the scientific foundation for preparing and activating catalysts of commercial interest, emphasizing representative models.The focus includes spectroscopic methods for structural characterization, especially in situ techniques, as well as new theoretical methods with practical impact in catalysis and catalytic reactions.The journal delves into the relationship between homogeneous and heterogeneous catalysis and includes theoretical studies on the structure and reactivity of catalysts.Additionally, contributions on photocatalysis, biocatalysis, surface science, and catalysis-related chemical kinetics are welcomed.