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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202005113
|2 doi
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|a pubmed24n1060.xml
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|a (DE-627)NLM318180472
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|a (NLM)33251649
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Li, Zhongjian
|e verfasserin
|4 aut
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|a Elucidation of the Synergistic Effect of Dopants and Vacancies on Promoted Selectivity for CO2 Electroreduction to Formate
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 12.01.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2020 Wiley-VCH GmbH.
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|a Sn-based materials are identified as promising catalysts for the CO2 electroreduction (CO2RR) to formate (HCOO- ). However, their insufficient selectivity and activity remain grand challenges. A new type of SnO2 nanosheet with simultaneous N dopants and oxygen vacancies (VO -rich N-SnO2 NS) for promoting CO2 conversion to HCOO- is reported. Due to the likely synergistic effect of N dopant and VO , the VO -rich N-SnO2 NS exhibits high catalytic selectivity featured by an HCOO- Faradaic efficiency (FE) of 83% at -0.9 V and an FE of > 90% for all C1 products (HCOO- and CO) at a wide potential range from -0.9 to -1.2 V. Low coordination Sn-N moieties are the active sites with optimal electronic and geometric structures regulated by VO and N dopants. Theoretical calculations elucidate that the reaction free energy of HCOO* protonation is decreased on the VO -rich N-SnO2 NS, thus enhancing HCOO- selectivity. The weakened H* adsorption energy also inhibits the hydrogen evolution reaction, a dominant side reaction during the CO2RR. Furthermore, using the catalyst as the cathode, a spontaneous Galvanic Zn-CO2 cell and a solar-powered electrolysis process successfully demonstrated the efficient HCOO- generation through CO2 conversion and storage
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|a Journal Article
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|a CO2 electroreduction
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|a Zn-CO2 batteries
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|a dopants
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4 |
|a formate
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| 650 |
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4 |
|a vacancies
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| 700 |
1 |
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|a Cao, Ang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zheng, Qiang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fu, Yuanyuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Tingting
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Arul, K Thanigal
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Jeng-Lung
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Bin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Adli, Nadia Mohd
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lei, Lecheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dong, Chung-Li
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xiao, Jianping
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Gang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hou, Yang
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 33(2021), 2 vom: 03. Jan., Seite e2005113
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
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|g volume:33
|g year:2021
|g number:2
|g day:03
|g month:01
|g pages:e2005113
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202005113
|3 Volltext
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