Morphological Modulation of Co2C by Surface-Adsorbed Species for Highly Effective Low-Temperature CO2 Reduction

doi:10.1021/acscatal.2c02020

	Morphological Modulation of Co2C by Surface-Adsorbed Species for Highly Effective Low-Temperature CO2 Reduction
	Zhang, Shunan 1,2; Liu, Xiaofang 1; Luo, Hu 1; Wu, Zhaoxuan 1; Wei, Baiyin 1; Shao, Zilong 1,2; Huang, Chaojie 1,2; Hua, Kaimin 1,2; Xia, Lin 1; Li, Jiong 3; Liu, Lei 4; Ding, Weitong 4; Wang, Hui1,5 ; Sun, Yuhan1,5,6
	2022-07-15
发表期刊	ACS CATALYSIS (IF:11.3[JCR-2023],12.6[5-Year])
ISSN	2155-5435
卷号	12 期号:14
发表状态	已发表
DOI	10.1021/acscatal.2c02020
摘要	Modulating the morphologies of transition metal carbides (TMCs) in situ in gas-solid reactions to improve catalytic performance remains a major challenge. Herein, we present a mechanism for manipulating prismatic and spherical Co2C by altering the surface energy and crystal growth rate by influencing the generation and amount of carboxylate species on hollow cubic Co3O4 (without Mn). Co2C nanoprisms delivered an excellent activity in reverse water gas shift (RWGS) at 270 degrees C, where CO2 conversion was close to thermodynamic limitations at a space velocity of 60 000 mL g(cat)(-1) h(-1). Furthermore, it showed a bifunctional effect that bridged RWGS and Fischer-Tropsch synthesis reactions, allowing for the direct synthesis of olefins and alcohols (C2+OH/ROH fraction of 98.4%, 4.3 mmol g(-1) h(-1)) by adjusting reaction conditions. The catalytic performance of Co2C nanoprisms was linked to (020) and (101) surfaces with high activity as well as double reaction pathways (redox and formate routes) through reaction mechanism and kinetics studies. This investigation provides a method for designing and modulating morphologies of TMCs and exhibits great potential for bridging RWGS and sequent cascade reactions.
关键词	CO2 reduction low temperature morphological modulation cobalt carbide bifunctional effect
URL	查看原文
收录类别	SCI ; EI ; SCIE
语种	英语
资助项目	National Natural Science Foundation of China["21776296","21905291","22108289"] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21090201] ; Shanghai Sailing Program[19YF1453000] ; Shanghai Institute of Cleantech Innovation["CR190904","CR190905"]
WOS研究方向	Chemistry
WOS类目	Chemistry, Physical
WOS记录号	WOS:000827438200001
出版者	AMER CHEMICAL SOC
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/214797
专题	生命科学与技术学院_特聘教授组_王慧组物质科学与技术学院_特聘教授组_孙予罕组
通讯作者	Wang, Hui; Sun, Yuhan
作者单位	1.Chinese Acad Sci, Shanghai Adv Res Inst, CAS Key Lab Low Carbon Convers Sci & Engn, Shanghai 201210, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Zhangjiang Natl Lab, Shanghai Adv Res Inst, Shanghai 201204, Peoples R China 4.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 5.Shanghai Tech Univ, Inst Carbon Neutral, Shanghai 201203, Peoples R China 6.Inst Clean Technol, Shanghai 201620, Peoples R China
通讯作者单位	上海科技大学
推荐引用方式 GB/T 7714	Zhang, Shunan,Liu, Xiaofang,Luo, Hu,et al. Morphological Modulation of Co2C by Surface-Adsorbed Species for Highly Effective Low-Temperature CO2 Reduction[J]. ACS CATALYSIS,2022,12(14).
APA	Zhang, Shunan.,Liu, Xiaofang.,Luo, Hu.,Wu, Zhaoxuan.,Wei, Baiyin.,...&Sun, Yuhan.(2022).Morphological Modulation of Co2C by Surface-Adsorbed Species for Highly Effective Low-Temperature CO2 Reduction.ACS CATALYSIS,12(14).
MLA	Zhang, Shunan,et al."Morphological Modulation of Co2C by Surface-Adsorbed Species for Highly Effective Low-Temperature CO2 Reduction".ACS CATALYSIS 12.14(2022).