催化学报 ›› 2025, Vol. 77: 45-69.DOI: 10.1016/S1872-2067(25)64788-7

• 综述 • 上一篇    下一篇

金属有机催化剂的电子结构调控在光催化产H2O2中的应用

亓文慧a, 李秀艳b, 顾少楠a,*(), 孙彬a, 王轶男a, 周国伟a,*()   

  1. a齐鲁工业大学(山东省科学院)化学与化工学院, 山东省高校轻工精细化学品重点实验室, 济南市多尺度功能材料工程实验室, 山东济南250353
    b潍坊科技学院化工与环境学院, 山东省海洋精细化工绿色化高值化工程技术研究中心, 山东潍坊262700
  • 收稿日期:2025-05-18 接受日期:2025-06-14 出版日期:2025-10-18 发布日期:2025-10-05
  • 通讯作者: *电子信箱: sngu@qlu.edu.cn (顾少楠),gwzhou@qlu.edu.cn (周国伟).
  • 基金资助:
    国家自然科学基金(22108133);国家自然科学基金(52472215);国家自然科学基金(52202102);国家自然科学基金(51972180);齐鲁工业大学(山东省科学院)科教产融合试点工程重大创新类项目(2024ZDZX13)

Electronic structure modulation of metal based organic catalysts for photocatalytic H2O2 production

Wenhui Qia, Xiuyan Lib, Shaonan Gua,*(), Bin Suna, Yinan Wanga, Guowei Zhoua,*()   

  1. aKey Laboratory of Fine Chemicals in Universities of Shandong, Jinan Engineering Laboratory for Multi-scale Functional Materials, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, China
    bSchool of Chemical Engineering and Environment, Shandong Engineering Research Center of Green and High-value Marine Fine Chemical, Weifang University of Science and Technology, Weifang 262700, Shandong, China
  • Received:2025-05-18 Accepted:2025-06-14 Online:2025-10-18 Published:2025-10-05
  • Contact: *E-mail: sngu@qlu.edu.cn (S. Gu), gwzhou@qlu.edu.cn (G. Zhou).
  • About author:Shaonan Gu (School of Chemistry and Chemical Engineering, Qilu University of Technology) received his Ph.D degree in 2016 from the University of Science and Technology Beijing. He then conducted postdoctoral research at the Hong Kong University of Science and Technology and the Hong Kong Polytechnic University from 2016 to 2018, respectively. His research interests center on designing and synthesizing photocatalysts with activities for photocatalytic hydrogen peroxide production and photocatalytic water splitting, as well as developing and investigating energy conversion and storage materials such as lithium ions and lithium sulfur battery electrodes, including their structural properties through theoretical calculations. His recent progresses focused on the theory and application of materials like MOFs, rare earth single atoms, and COFs in photo- and electro-catalysis. Now he has published over 80 peer-reviewed papers.
    Guowei Zhou (School of Chemistry and Chemical Engineering, Qilu University of Technology) received his B.S., M.S., and Ph.D. degrees in Chemistry at Shandong University (1986, 1989, and 2001). He carried out postdoctoral research in Prof. Young Soo Kang’s group at Pukyong National University (Korea) from 2012 to 2013 and worked as an advanced research scholar in Prof. Shihe Yang’s group at The Hong Kong University of Science and Technology from 2015 to 2016. He is currently a Professor at Qilu University of Technology. His research group focuses primarily on the design, controlled synthesis, modification, and hierarchical assembly mesostructure functional materials with specific morphology for energy applications including batteries and photocatalysis. His current research interests include the different application of functional mesoporous materials for photocatalytic hydrogen production, CO2 reduction, environmental remediation, and energy conversion and storage. He has published more than 160 peer-reviewed papers. He was granted 54 national invention patents in China. He also serves as the editor for Acta Phys.-Chim. Sin. from 2025.
  • Supported by:
    National Natural Science Foundation of China(22108133);National Natural Science Foundation of China(52472215);National Natural Science Foundation of China(52202102);National Natural Science Foundation of China(51972180);Science, Education and Industry Integration Innovation Pilot Project from Qilu University of Technology (Shandong Academy of Sciences)(2024ZDZX13)

摘要:

过氧化氢(H2O2)在医疗保健、电子行业、化学合成等领域广泛应用并起着关键作用. 然而, 目前全球超过95%的H2O2仍然通过蒽醌法生产制备, 该过程设施规模庞大, 操作复杂且污染严重, 限制了其可持续发展. 利用光催化技术生产H2O2, 已成为绿色可持续的合成方法之一.但光催化技术仍然面临着光吸收范围窄、光生载流子分离效率低、氧还原活性弱以及生成过H2O2的选择性低等问题. 金属有机催化剂因其可调谐的电子结构特性, 被视为探索H2O2合成机制及构效关系的理想选择.

本文系统地总结了金属有机催化剂在光催化产H2O2中的最新研究进展. 首先, 概述了金属有机催化剂在光催化产H2O2领域的优势: (1)金属位点可充当电子陷阱, 抑制光生电子-空穴的复合; (2) 金属原子与相邻原子连接形成电子传递桥; (3)金属掺杂可引入中间能级; (4)金属位点可以作为O2的活化位点; (5)金属附近的微环境可以调节以及(6)金属催化剂具有比较明确的O2吸附模式. 随后详细分析了光催化合成H2O2的机理, 包括氧还原反应和水氧化反应途径. 重点综述了金属有机催化剂的电子结构调控策略对光吸收范围、光生载流子分离、O2活化过程以及H2O2选择性生成的影响; 具体分析了催化剂的设计对能带结构调节和电子迁移速率提升的作用; 突出了S型异质结从动力学和热力学两个层面协同作用以提高光催化产H2O2效率的优势. 本文还讨论了活性位点在原子尺度上特异性地参与O2吸附和活化过程, 并通过设计对称配位结构和不对称配位结构改变金属位点电荷密度以及O2吸附能, 从而提高催化剂的O2活化能力. 此外, 还探讨了H2O2分解的途径、影响H2O2分解的因素以及对牺牲剂利用的优势和弊端. 最后, 本文简要总结了金属有机催化剂开发设计和应用所面临的各种挑战, 包括金属有机催化剂不稳定、合成过程中金属原子容易团聚以及反应机理未明确等.

未来可能需要结合理论计算, 设计可定制配位结构以及具有配位稳定性的催化剂, 或引入多样的配位原子和基团实现电子结构调制的多样性, 并且结合先进的测试技术来阐明各种自由基的反应过程和机理等. 总之, 光催化制备H2O2是一个非常有前途的方法, 金属基有机半导体的研究将使光催化剂更加多元化, 有望在实际生产中得到广泛应用.

关键词: 金属有机催化剂, 电子结构, 光催化过氧化氢合成, 氧还原反应, 水氧化反应, S型光催化

Abstract:

Photocatalytic synthesis of hydrogen peroxide (H2O2) has emerged as a promising approach because of its simplicity and environmental benefits. However, significant challenges remain obstacles to their advancement, such as the rapid recombination of photogenerated charge carriers and sluggish surface redox reactions on nonmetallic organic catalysts. Metal-based organic catalysts with tunable electronic structures are considered ideal for exploring the mechanisms and structure-performance relationships in H2O2 synthesis. This review summarizes the fundamental principles of photocatalytic H2O2 synthesis via oxygen reduction and water oxidation reactions. Recent advancements in electronic structure tuning strategies for metal-based organic catalysts are critically examined, focusing on their impact on light absorption range, photogenerated carrier separation, O2 activation, and the selective generation of H2O2. In addition, this review comprehensively evaluates the applications of sacrificial agents in photocatalytic reaction systems and offers insights into the future development of metal-based organic catalysts for H2O2 photosynthesis.

Key words: Metal based organic catalysts, Electronic structure, Photocatalytic H2O2 synthesis, Oxygen reduction reaction, Water oxidation reaction, S-scheme photocatalysis