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In Situ Carbon Encapsulation Confined Nickel-Doped Indium Oxide Nanocrystals for Boosting CO2 Electroreduction to the Industrial Level
Chen, Zhipeng1,2; Yu, Guang2; Li, Bin2; Zhang, Xinxin2; Jiao, Mingyang2; Wang, Nailiang3; Zhang, Xiangping4; Liu, Licheng2
2021-12-03
Source PublicationACS CATALYSIS
ISSN2155-5435
Volume11Issue:23Pages:14596-14604
AbstractThe reaction current density for the CO2 electroreduction to formate of indium-based catalysts cannot meet the needs of industrial applications. Herein, the nickel-doped indium oxide nanocrystals (similar to 7 nm) confined in carbon nanofibers (Ni-In2O3@C NFs) demonstrate a formate partial current density of over 350 mA cm(-2) at a moderate overpotential of 0.8 V, and particularly, the formate Faradaic efficiency (FE) is above 90% in a wide potential region from -0.6 to -1.0 V. More remarkably, a long-term stability of 55 h with an industrially relevant current density of similar to 200 mA cm(-2) can be achieved after improving hydrophobicity of gas diffusion electrodes (GDEs). Experimental results combined with DFT calculations confirm that the enhanced activity is attributed to the synergistic effect of nickel doping and carbon encapsulation in engineering the electronic structure of In2O3 nanocrystals, which enhances the adsorption strength of OCHO* intermediates and accelerates the charge transfer rate.
KeywordCO2 electroreduction nickel doping carbon encapsulation electronic structure nanocrystals
DOI10.1021/acscatal.1c04182
Language英语
WOS KeywordELECTROCATALYTIC REDUCTION ; ELECTROCHEMICAL REDUCTION ; CURRENT-DENSITY ; HIGH-EFFICIENCY ; DIOXIDE ; ELECTRODES ; CATALYSTS ; DEFECT ; NANOPARTICLES ; SELECTIVITY
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000753063400029
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/51943
Collection中国科学院过程工程研究所
Corresponding AuthorLiu, Licheng
Affiliation1.Anhui Univ Technol, Sch Chem & Chem Engn, Maanshan 243032, Peoples R China
2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Shandong, Peoples R China
3.Ningxia Univ, State Key Lab High Efficiency Utilizat Coal & Gre, Yinchuan 750021, Ningxia, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Chen, Zhipeng,Yu, Guang,Li, Bin,et al. In Situ Carbon Encapsulation Confined Nickel-Doped Indium Oxide Nanocrystals for Boosting CO2 Electroreduction to the Industrial Level[J]. ACS CATALYSIS,2021,11(23):14596-14604.
APA Chen, Zhipeng.,Yu, Guang.,Li, Bin.,Zhang, Xinxin.,Jiao, Mingyang.,...&Liu, Licheng.(2021).In Situ Carbon Encapsulation Confined Nickel-Doped Indium Oxide Nanocrystals for Boosting CO2 Electroreduction to the Industrial Level.ACS CATALYSIS,11(23),14596-14604.
MLA Chen, Zhipeng,et al."In Situ Carbon Encapsulation Confined Nickel-Doped Indium Oxide Nanocrystals for Boosting CO2 Electroreduction to the Industrial Level".ACS CATALYSIS 11.23(2021):14596-14604.
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