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曹晨熙1 陈天元1 丁晓旭1 黄海1 徐晶1 韩一帆1

(1.化学工程联合国家重点实验室华东理工大学, 上海 200237)


【关键词】 二氧化碳;催化剂;动力学;甲醇合成;原位红外;程序升温实验;


【基金资助】 国家重点研发计划项目(2018YFB0605803); 国家自然科学基金项目(21808058); 上海市青年科技英才扬帆计划项目(18YF1406100);

Kinetics study on supported indium-based catalysts in carbon dioxide hydrogenation

CAO Chenxi1 CHEN Tianyuan1 DING Xiaoxu1 HUANG Hai1 XU Jing1 HAN Yifan1

(1.State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, China 200237)

【Abstract】In this work, the effect of support materials on the kinetic behaviors of indium-based catalysts in carbon dioxide hydrogenation was studied. A series of supported indium-based catalysts were prepared and tested. Only group ⅣB metal (Ti, Zr and Hf) oxide supported indium-based catalysts have substantial catalytic activity. Particularly, In1/HfO2 and In1/ZrO2 catalysts show high methanol selectivity, while In1/TiO2 mainly catalyzes the reverse water-gas shift reaction. The steady-state kinetics, in-situ diffuse reflectance infrared Fourier transform spectroscopy and temperature-programmed experiments indicate that the key surface reaction intermediates over In1/HfO2 and In1/ZrO2 are formate and methoxy species, and methanol is produced via stepwise hydrogenation of the surface formate. In1/HfO2 possesses the strongest hydrogen splitting and hydrogenation ability, thus favoring methanol synthesis. Over In1/TiO2, no significant surface carbonaceous species is detected under reaction conditions. The improved CO production might be related to the interfacial oxygen defects facilitating the redox cycle and decomposition of formate intermediate.

【Keywords】 carbon dioxide; catalysts; kinetics; methanol synthesis; in-situ DRIFTS; temperature-programmed experiments;


【Funds】 National Key R&D Program of China (2018YFB0605803); National Natural Science Foundation of China (21808058); "Yangfan" Project of Science and Technology of Shanghai (18YF1406100);

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This Article


CN: 11-1946/TQ

Vol 70, No. 10, Pages 3985-3993+4100

October 2019


Article Outline


  • Introduction
  • 1 Experimental section
  • 2 Results and discussion
  • 3 Conclusions
  • References