State Key Laboratory of Urban Water Resource and Environment, Shenzhen Key Laboratory of Organic Pollution Prevention and Control, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen, 518055, P. R. China.
Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, P. R. China.
Adv Sci (Weinh). 2023 Feb;10(5):e2204566. doi: 10.1002/advs.202204566. Epub 2022 Dec 11.
Methane (CH ) is an attractive energy source and important greenhouse gas. Therefore, from the economic and environmental point of view, scientists are working hard to activate and convert CH into various products or less harmful gas at low-temperature. Although the inert nature of CH bonds requires high dissociation energy at high temperatures, the efforts of researchers have demonstrated the feasibility of catalysts to activate CH at low temperatures. In this review, the efficient catalysts designed to reduce the CH oxidation temperature and improve conversion efficiencies are described. First, noble metals and transition metal-based catalysts are summarized for activating CH in temperatures ranging from 50 to 500 °C. After that, the partial oxidation of CH at relatively low temperatures, including thermocatalysis in the liquid phase, photocatalysis, electrocatalysis, and nonthermal plasma technologies, is briefly discussed. Finally, the challenges and perspectives are presented to provide a systematic guideline for designing and synthesizing the highly efficient catalysts in the complete/partial oxidation of CH at low temperatures.
甲烷（CH ）是一种有吸引力的能源和重要的温室气体。因此，从经济和环境的角度来看，科学家们正在努力开发和将 CH 低温下转化为各种产品或危害较小的气体。尽管 CH 键的惰性需要在高温下具有高离解能，但研究人员的努力已经证明了催化剂在低温下激活 CH 的可行性。在这篇综述中，描述了旨在降低 CH 氧化温度和提高转化效率的高效催化剂。首先，总结了用于在 50 至 500°C 温度范围内激活 CH 的贵金属和过渡金属基催化剂。之后，简要讨论了 CH 的部分氧化，包括液相热催化、光催化、电催化和非热等离子体技术。最后，提出了挑战和展望，为设计和合成低温下 CH 的完全/部分氧化的高效催化剂提供了系统的指导。
