Black Phosphorus-Modified Co3O4 through Tuning the Electronic Structure for Enhanced Oxygen Evolution Reaction
Spinel Co3O4, consisting of two mixed valence states, Co2+ and Co3+, has attracted enormous interest as a promising electrocatalyst for oxygen evolution reaction (OER). Proper control on the relative proportion of Co2+/Co3+ in cobalt oxide can greatly tune the electronic structure and further optimize its catalytic performance. Herein, a hybrid coupling Co3O4 with black phosphorus (Co3O4BP) is designed as an efficient catalyst for OER. Electron migration from BP to Co3O4 is achieved in Co3O4@BP, owing to the higher Fermi level of BP than that of Co3O4. Efficient electron transfer can not only create massive active sites with abundant Co2+ but also remarkably suppress the deterioration of BP. Particularly, the Co3O4@BP catalyst outperforms the pristine Co3O4 by over four times and is even 20 times higher than that of bare BP at a potential of 1.65 V versus reversible hydrogen electrode. Our finding provides insightful understanding for electronic engineering in Co3O4@BP by balancing advantages and utilizing drawbacks of Co3O4 and BP.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2019 |
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| Erschienen: |
2019 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:11 |
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| Enthalten in: |
ACS applied materials & interfaces - 11(2019), 19 vom: 15. Mai, Seite 17459-17466 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Shi, Fangbing [VerfasserIn] |
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| Links: |
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| Themen: |
Black phosphorus |
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| Anmerkungen: |
Date Revised 20.11.2019 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/acsami.9b04078 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM296411957 |
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| 520 | |a Spinel Co3O4, consisting of two mixed valence states, Co2+ and Co3+, has attracted enormous interest as a promising electrocatalyst for oxygen evolution reaction (OER). Proper control on the relative proportion of Co2+/Co3+ in cobalt oxide can greatly tune the electronic structure and further optimize its catalytic performance. Herein, a hybrid coupling Co3O4 with black phosphorus (Co3O4BP) is designed as an efficient catalyst for OER. Electron migration from BP to Co3O4 is achieved in Co3O4@BP, owing to the higher Fermi level of BP than that of Co3O4. Efficient electron transfer can not only create massive active sites with abundant Co2+ but also remarkably suppress the deterioration of BP. Particularly, the Co3O4@BP catalyst outperforms the pristine Co3O4 by over four times and is even 20 times higher than that of bare BP at a potential of 1.65 V versus reversible hydrogen electrode. Our finding provides insightful understanding for electronic engineering in Co3O4@BP by balancing advantages and utilizing drawbacks of Co3O4 and BP | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Co3O4 | |
| 650 | 4 | |a black phosphorus | |
| 650 | 4 | |a engineering electronic structure | |
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| 650 | 4 | |a oxygen evolution reaction | |
| 700 | 1 | |a Huang, Keke |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Ying |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Wei |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Liping |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Xiyang |e verfasserin |4 aut | |
| 700 | 1 | |a Feng, Shouhua |e verfasserin |4 aut | |
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