Engineering unsymmetrically coordinated Cu-S1N3 single atom sites with enhanced oxygen reduction activity
書誌事項
- 公開日
- 2020-06-16
- 権利情報
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- https://creativecommons.org/licenses/by/4.0
- https://creativecommons.org/licenses/by/4.0
- DOI
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- 10.1038/s41467-020-16848-8
- 公開者
- Springer Science and Business Media LLC
説明
<jats:title>Abstract</jats:title><jats:p>Atomic interface regulation is thought to be an efficient method to adjust the performance of single atom catalysts. Herein, a practical strategy was reported to rationally design single copper atoms coordinated with both sulfur and nitrogen atoms in metal-organic framework derived hierarchically porous carbon (S-Cu-ISA/SNC). The atomic interface configuration of the copper site in S-Cu-ISA/SNC is detected to be an unsymmetrically arranged Cu-S<jats:sub>1</jats:sub>N<jats:sub>3</jats:sub> moiety. The catalyst exhibits excellent oxygen reduction reaction activity with a half-wave potential of 0.918 V vs. RHE. Additionally, through in situ X-ray absorption fine structure tests, we discover that the low-valent Cuprous-S<jats:sub>1</jats:sub>N<jats:sub>3</jats:sub> moiety acts as an active center during the oxygen reduction process. Our discovery provides a universal scheme for the controllable synthesis and performance regulation of single metal atom catalysts toward energy applications.</jats:p>
収録刊行物
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- Nature Communications
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Nature Communications 11 (1), 3049-, 2020-06-16
Springer Science and Business Media LLC