Institute for Energy Research, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, P. R. China.
Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario, M5S 3H6, Canada.
Angew Chem Int Ed Engl. 2023 May 22;62(22):e202218694. doi: 10.1002/anie.202218694. Epub 2023 Apr 19.
To overcome the thermodynamic and kinetic impediments of the Sabatier CO methanation reaction, the process must be operated under very high temperature and pressure conditions, to obtain an industrially viable conversion, rate, and selectivity. Herein, we report that these technologically relevant performance metrics have been achieved under much milder conditions using solar rather than thermal energy, where the methanation reaction is enabled by a novel nickel-boron nitride catalyst. In this regard, an in situ generated HOB⋅⋅⋅B surface frustrated Lewis's pair is considered responsible for the high Sabatier conversion 87.68 %, reaction rate 2.03 mol g h , and near 100 % selectivity, realized under ambient pressure conditions. This discovery bodes well for an opto-chemical engineering strategy aimed at the development and implementation of a sustainable 'Solar Sabatier' methanation process.
为了克服 Sabatier CO 甲烷化反应的热力学和动力学障碍，该过程必须在非常高的温度和压力条件下运行，以获得工业上可行的转化率、速率和选择性。在此，我们报告称，在使用太阳能而不是热能的情况下，通过使用一种新型的镍-氮化硼催化剂，可以在温和得多的条件下实现这些技术相关的性能指标。在这方面，被认为是原位生成的 HOB⋅⋅⋅B 表面受阻路易斯对负责实现高 Sabatier 转化率 87.68%、反应速率 2.03 mol g h 和接近 100%的选择性，在环境压力条件下实现。这一发现为光化学工程策略的发展和实施带来了希望，该策略旨在开发和实施可持续的“太阳能 Sabatier”甲烷化工艺。
