Engineering unsymmetrically coordinated Cu-S1N3 single atom sites with enhanced oxygen reduction activity
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Published:2020-06-16
Issue:1
Volume:11
Page:
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ISSN:2041-1723
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Container-title:Nature Communications
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language:en
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Short-container-title:Nat Commun
Author:
Shang Huishan, Zhou Xiangyi, Dong JuncaiORCID, Li Ang, Zhao Xu, Liu QinghuaORCID, Lin YueORCID, Pei Jiajing, Li Zhi, Jiang Zhuoli, Zhou Danni, Zheng Lirong, Wang YuORCID, Zhou Jing, Yang Zhengkun, Cao Rui, Sarangi Ritimukta, Sun Tingting, Yang Xin, Zheng Xusheng, Yan WenshengORCID, Zhuang ZhongbinORCID, Li JiaORCID, Chen WenxingORCID, Wang DingshengORCID, Zhang Jiatao, Li Yadong
Abstract
AbstractAtomic 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-S1N3 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-S1N3 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.
Funder
National Science Foundation of China | National Natural Science Foundation of China-Yunnan Joint Fund
Publisher
Springer Science and Business Media LLC
Subject
General Physics and Astronomy,General Biochemistry, Genetics and Molecular Biology,General Chemistry
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