Department of Chemistry, Technical University of Berlin, 10623 Berlin, Germany.
College of Materials Science and Engineering, Hunan University, 410082, Changsha, Hunan, China.
Chem Soc Rev. 2020 Sep 21;49(18):6605-6631. doi: 10.1039/d0cs00458h.
Hydrogen peroxide (H2O2) has a wide range of important applications in various fields including chemical industry, environmental remediation, and sustainable energy conversion/storage. Nevertheless, the stark disconnect between today's huge market demand and the historical unsustainability of the currently-used industrial anthraquinone-based production process is promoting extensive research on the development of efficient, energy-saving and sustainable methods for H2O2 production. Among several sustainable strategies, H2O2 production via electrochemical and photochemical routes has shown particular appeal, because only water, O2, and solar energy/electricity are involved during the whole process. In the past few years, considerable efforts have been devoted to the development of advanced electrocatalysts and photocatalysts for efficient and scalable H2O2 production with high efficiency and stability. In this review, we compare and contrast the two distinct yet inherently closely linked catalytic processes, before we detail recent advances in the design, preparation, and applications of different H2O2 catalyst systems from the viewpoint of electrochemical and photochemical approaches. We close with a balanced perspective on remaining future scientific and technical challenges and opportunities.
过氧化氢（H2O2）在化学工业、环境修复和可持续能源转换/存储等各个领域都有广泛的重要应用。然而，当今巨大的市场需求与历史上不可持续的现行蒽醌基工业生产工艺之间的巨大差距，推动了人们对高效、节能和可持续的 H2O2 生产方法的广泛研究。在几种可持续策略中，通过电化学和光化学途径生产 H2O2 特别吸引人，因为整个过程只涉及水、O2 和太阳能/电能。在过去的几年中，人们投入了相当大的努力来开发先进的电催化剂和光催化剂，以实现高效、可扩展的 H2O2 生产，具有高效率和稳定性。在这篇综述中，我们比较和对比了这两种截然不同但本质上密切相关的催化过程，然后详细介绍了从电化学和光化学方法的角度来看，不同 H2O2 催化剂体系的设计、制备和应用的最新进展。最后，我们从科学和技术的角度，对未来仍然存在的挑战和机遇进行了平衡的分析。
