催化作用
联轴节(管道)
工作(物理)
选择性
光化学
热的
产量(工程)
材料科学
化学
化学工程
纳米技术
有机化学
物理
热力学
冶金
工程类
气象学
作者
Jianxin Zhai,Zhihong Xia,Baowen Zhou,Haihong Wu,Teng Xue,Xiao Chen,Jiapeng Jiao,Shuaiqiang Jia,Maoqi He,Buxing Han
标识
DOI:10.1038/s41467-024-45389-7
摘要
Abstract Upcycling of CO 2 into fuels by virtually unlimited solar energy provides an ultimate solution for addressing the substantial challenges of energy crisis and climate change. In this work, we report an efficient nanostructured Ru/MnO x catalyst composed of well-defined Ru/MnO/Mn 3 O 4 for photo-thermal catalytic CO 2 hydrogenation to CH 4 , which is the result of a combination of external heating and irradiation. Remarkably, under relatively mild conditions of 200 °C, a considerable CH 4 production rate of 166.7 mmol g −1 h −1 was achieved with a superior selectivity of 99.5% at CO 2 conversion of 66.8%. The correlative spectroscopic and theoretical investigations suggest that the yield of CH 4 is enhanced by coordinating photon energy with thermal energy to reduce the activation energy of reaction and promote formation of key intermediate COOH* species over the catalyst. This work opens up a new strategy for CO 2 hydrogenation toward CH 4 .
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