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CeO2 supported Pd dimers boosting CO2 hydrogenation to ethanol
2021-08-15
发表期刊APPLIED CATALYSIS B-ENVIRONMENTAL (IF:20.2[JCR-2023],18.9[5-Year])
ISSN0926-3373
EISSN1873-3883
卷号291
发表状态已发表
DOI10.1016/j.apcatb.2021.120122
摘要

Hydrogenation of CO2 into valuable chemicals is of great significance but very challenging due to its chemical inertness and selectivity controlling. Here, we report that CeO2 supported Pd dimers can efficiently convert CO2 to ethanol with significantly higher activity and selectivity compared to those in literatures, which gives a selectivity of 99.2 % to ethanol with a space-time yield of 45.6 g(ethanol) g(Pd)(-1) h(-1). The Pd dimers possessing unique Pd2O4 configuration and high homogeneity enables to directly dissociate CO2 to CO, trigger C-C coupling but appropriately inhibit further C2+ coupling, which benefits to selectively form ethanol. The Pd2O4 configuration can strongly bind CO on Pd-2/CeO2, which prevents CO desorption and promotes the coupling between CO and CH3 intermediates to form the precursor of ethanol. The strategy of constructing atom-precision active sites reported in this work opens new avenues to develop highly selective catalysts for CO2/CO hydrogenation reactions.

关键词CO2 hydrogenation Pd dimer Ethanol CeO2
收录类别SCIE ; EI
语种英语
WOS研究方向Chemistry ; Engineering
WOS类目Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS记录号WOS:000663287600005
出版者ELSEVIER
原始文献类型Article
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文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/127558
专题物质科学与技术学院_硕士生
物质科学与技术学院_PI研究组_杨波组
共同第一作者Jiang, Feng
通讯作者Jiang, Feng; Yang, Bo; Yang, Bing; Zhu, Yongfa; Liu, Xiaohao
作者单位
1.Jiangnan Univ, Sch Chem & Mat Engn, Key Lab Synthet & Biol Colloids, Minist Educ, Wuxi 214122, Jiangsu, Peoples R China;
2.Jiangnan Univ, Int Joint Res Ctr Photorespons Mol & Mat, Wuxi 214122, Jiangsu, Peoples R China;
3.ShanghaiTech Univ, Sch Phys Sci & Technol, 393 Middle Huaxia Rd, Shanghai 201210, Peoples R China;
4.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, 457 Zhongshan Rd, Dalian 116023, Peoples R China;
5.Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
通讯作者单位物质科学与技术学院
推荐引用方式
GB/T 7714
Lou, Yang,Jiang, Feng,Zhu, Wen,et al. CeO2 supported Pd dimers boosting CO2 hydrogenation to ethanol[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2021,291.
APA Lou, Yang.,Jiang, Feng.,Zhu, Wen.,Wang, Li.,Yao, Tingyi.,...&Liu, Xiaohao.(2021).CeO2 supported Pd dimers boosting CO2 hydrogenation to ethanol.APPLIED CATALYSIS B-ENVIRONMENTAL,291.
MLA Lou, Yang,et al."CeO2 supported Pd dimers boosting CO2 hydrogenation to ethanol".APPLIED CATALYSIS B-ENVIRONMENTAL 291(2021).
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