Chenyang Shen , Menghui Liu , Song He , Haibo Zhao , Chang-jun Liu
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引用次数: 0
摘要
二氧化碳甲烷化具有大规模利用二氧化碳的潜力。它还被认为可用于可再生能源的储存。二氧化碳甲烷化的甲烷产物可直接用于天然气运输的商业管道。已证实，支撑钌（Ru）催化剂对二氧化碳甲烷化具有活性和稳定性，其对氢的解离能力强，对一氧化碳的结合力强。在支撑型 Ru 催化剂上进行二氧化碳甲烷化反应对结构非常敏感。Ru 催化剂和载体的大小对活性和机理有显著影响。如何以结构可控的方式制备支撑型 Ru 催化剂，使其具有足够高的低温活性，仍然是一个重大挑战。在本综述中，总结了用于 CO2 甲烷化的支撑型 Ru 催化剂研究的最新进展。同时还讨论了所面临的挑战和未来的发展。
Advances in the studies of the supported ruthenium catalysts for CO2 methanation
CO2 methanation has a potential in the large-scale utilization of carbon dioxide. It has also been considered to be useful for the renewable energy storage. The commercial pipeline for natural gas transportation can be directly applied for the methane product of CO2 methanation. The supported ruthenium (Ru) catalyst has been confirmed to be active and stable for CO2 methanation with its high ability in the dissociation of hydrogen and the strong binding of carbon monoxide. CO2 methanation over the supported Ru catalyst is structure sensitive. The size of the Ru catalyst and the support have significant effects on the activity and the mechanism. A significant challenge remained is the structural controllable preparation of the supported Ru catalyst toward a sufficiently high low-temperature activity. In this review, the recent progresses in the investigations of the supported Ru catalysts for CO2 methanation are summarized. The challenges and the future developments are also discussed.
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.
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