CO2 hydrogenation to methanol over Pd/MnO/In2O3 catalyst

被引：29

作者：

Tian, Guanfeng ^{[1
]}

Wu, Youqing ^{[1
]}

Wu, Shiyong ^{[1
]}

Huang, Sheng ^{[1
]}

Gao, Jinsheng ^{[1
]}

机构：

[1] East China Univ Sci & Technol, Dept Chem Engn Energy Resources, Shanghai 200237, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2022年 / 10卷 / 01期

基金：

中国国家自然科学基金;

关键词：

CO2; hydrogenation; Methanol; Catalyst; Pd/MnO/In2O3; CARBON-DIOXIDE; ACTIVE-SITE; PD; DFT; DEACTIVATION; PERFORMANCE; ADSORPTION; REDUCTION; MECHANISM; OXIDE;

D O I：

10.1016/j.jece.2021.106965

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Synthesizing methanol from CO2 and green hydrogen is a promising strategy to solve environmental issues and meet the increasing energy demand. In this work, Pd/MnO/In2O3 catalyst with highly dispersed Pd species was prepared via an in-situ reduction method using NaBH4 as the reducing agent. The highly dispersed Pd species promoted the dissociative of hydrogen and the hydride species could spill over to the MnO/In2O3 due to the strong metal-support interaction between Pd and MnO/In2O3, which improved the catalytic activity of Pd/MnO/In2O3 for CO2 hydrogenation to methanol. As a result, the methanol space-time yield of 1 wt% Pd/MnO/In2O3 was 4.8 times higher than that of MnO/In2O3. Moreover, the methanol selectivity of 1 wt% Pd/MnO/In2O3 was still higher than 70% at a temperature below 280.C. The present in-situ reduction method is an effective route for the preparation of Pd/MnO/In2O3 catalyst for CO2 hydrogenation to methanol.

引用

页数：7

共 52 条

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