Mechanochemical incorporation of magnesium in iron-based composite surface for efficient hydrogenation of carbon dioxide to light olefin

被引：25

作者：

Chen, Haipeng ^{[1
]}

Ma, Ningning ^{[1
]}

Wang, Chenwei ^{[1
]}

Liu, Chenlei ^{[1
]}

Zhang, Xiaoyu ^{[1
]}

Yuan, Weiwei ^{[1
]}

Li, Wenqiang ^{[1
]}

Zhou, Shixue ^{[2
]}

Yang, Qingfeng ^{[3
]}

Feng, Xun ^{[1
]}

机构：

[1] Luoyang Normal Univ, Coll Chem & Chem Engn, Henan Key Lab Funct Oriented Porous Mat, Luoyang 471934, Peoples R China

[2] Shandong Univ Sci & Technol, Coll Chem & Biol Engn, Qingdao 266590, Peoples R China

[3] Ningxia Univ, State Key Lab High Efficiency Utilizat Coal & Gre, Yinchuan 750021, Ningxia, Peoples R China

来源：

FUEL | 2023年 / 331卷

基金：

中国国家自然科学基金;

关键词：

Heterogeneous catalysis; Mechanochemistry; Iron -based composite; Carbon dioxide; Light olefin; FISCHER-TROPSCH SYNTHESIS; CO2; HYDROGENATION; CATALYTIC-HYDROGENATION; NANOPARTICLES; METHANATION; MORPHOLOGY; NI;

D O I：

10.1016/j.fuel.2022.125849

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Catalytic hydrogenation of CO2 to light olefin (C-2(=) -C-4(=)) not only reduces greenhouse gas emissions but also utilizes CO2 efficiently. A highly active and selective iron-based composite from facile high-energy mechano-chemical ball milling was developed for CO2 hydrogenation to C2= -C4=. Under a condition of 320 C-circle, 1.0 MPa and 9600 mL h(-1) gcat(-1), a high C-2(-) - C-4(-) selectively of 55.4 % in hydrocarbons at CO2 conversion of 32.1 % is achieved, outperforming the previous reports under similar reaction condition. An "O-Fe/Mg-O" structure formed by incorporating of Mg into Fe3O4 surface during high-energy mechanochemical ball milling contributes to the efficient adsorption and activation of CO2 to CO. The sustainable C-C coupling of CO with surface carbon on K2O-adsorbed Fe5C2 surface promotes the C-2(-) -C-4(-) production. This work provides a new strategy for developing highly efficient catalyst for CO2 conversion to value-added chemicals.

引用

页数：9

共 53 条

[1] Magnetically Induced Continuous CO2 Hydrogenation Using Composite Iron Carbide Nanoparticles of Exceptionally High Heating Power [J].