In Situ Hydrogenation of CO2 by Al/Fe and Zn/Cu Alloy Catalysts under Mild Conditions

被引：11

作者：

Sun, Yufan ^{[1
,2
]}

Hu, Hanjun ^{[1
,2
]}

Wang, Yutian ^{[1
,2
]}

Gao, Jia ^{[1
,2
]}

Tang, Yang ^{[3
]}

Wan, Pingyu ^{[3
]}

Hu, Qing ^{[4
,5
]}

Lv, Jianjun ^{[6
]}

Zhang, Tianshu ^{[6
]}

Yang, Xiao Jin ^{[1
,2
]}

机构：

[1] Beijing Univ Chem Technol, Coll Chem Engn, 128-15 Bei San Huan East Rd, Beijing 100029, Peoples R China

[2] Beijing Univ Chem Technol, Beijing Key Lab Membrane Separat Proc & Technol, 128-15 Bei San Huan East Rd, Beijing 100029, Peoples R China

[3] Beijing Univ Chem Technol, Dept Appl Chem, 128-15 Bei San Huan East Rd, Beijing 100029, Peoples R China

[4] Southern Univ Sci & Technol, Sch Environm Sci & Engn, 1088 Xueyuan Rd, Shenzhen 518055, Peoples R China

[5] Beijing Huanding Environm Big Data Inst, 1 Wang Zhuang Rd, Beijing 100083, Peoples R China

[6] Beijing Yitianhui Met Mat Co Ltd, Beijing 110118, Peoples R China

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 2019年 / 42卷 / 06期

关键词：

Al alloys; Carbon dioxide; In situ hydrogenation; Metal catalysts; Zn/Cu alloys; FORMIC-ACID DECOMPOSITION; METHANOL SYNTHESIS; HIGHLY-EFFICIENT; CARBON-DIOXIDE; HYDROTHERMAL CONDITIONS; NITRATE REDUCTION; WATER; ALUMINUM; IRON; CU;

D O I：

10.1002/ceat.201800389

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The development of efficient metal catalysts for in situ hydrogenation of CO2 in water under mild conditions has gained considerable attention. Three Al alloys (Al/Fe, Al/Fe/Cu, Al/Cu) and three Zn/Cu alloys for in situ hydrogenation of CO2 in aqueous bicarbonate solutions were investigated. Hydrogen was generated by reaction of Al, Fe, and Zn in the alloys with water. In situ hydrogenation of CO2 was likely to be catalyzed by intermetallic compounds and generated metal oxides. Al alloys catalyzed the hydrogenation to methane while Zn/Cu alloys produced CO and formic acid. Zn/Cu5 possessed the highest catalytic activity, which was attributed to the CuZn5 crystal planes in the alloys. Insights are provided into the importance of compositions and structures of alloys for the selectivity for in situ hydrogenation of CO2 in aqueous bicarbonate solutions.

引用

页码：1223 / 1231

页数：9

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