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The simplest construction of single-site catalysts by the synergism of micropore trapping and nitrogen anchoring
Zhang, Zhiqi; Chen, Yugang; Zhou, Liqi; Chen, Chi; Han, Zhen; Zhang, Bingsen; Wu, Qiang; Yang, Lijun; Du, Lingyu; Bu, Yongfeng; Wang, Peng; Wang, Xizhang; Yang, Hui; Hu, Zheng
2019-04-10
Source PublicationNATURE COMMUNICATIONS
ISSN2041-1723
Volume10
AbstractSingle-site catalysts feature high catalytic activity but their facile construction and durable utilization are highly challenging. Herein, we report a simple impregnation-adsorption method to construct platinum single-site catalysts by synergic micropore trapping and nitrogen anchoring on hierarchical nitrogen-doped carbon nanocages. The optimal catalyst exhibits a record-high electrocatalytic hydrogen evolution performance with low overpotential, high mass activity and long stability, much superior to the platinum-based catalysts to date. Theoretical simulations and experiments reveal that the micropores with edge-nitrogendopants favor the formation of isolated platinum atoms by the micropore trapping and nitrogen anchoring of [PtCI6](2-), followed by the spontaneous dechlorination. The platinum-nitrogen bonds are more stable than the platinum-carbon ones in the presence of adsorbed hydrogen atoms, leading to the superior hydrogen evolution stability of platinum single-atoms on nitrogen-doped carbon. This method has been successfully applied to construct the single-site catalysts of other precious metals such as palladium, gold and iridium.
Indexed BySCI
Language英语
WOS IDWOS:000463984400006
PublisherNATURE PUBLISHING GROUP
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81191
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Zhang, Zhiqi,Chen, Yugang,Zhou, Liqi,et al. The simplest construction of single-site catalysts by the synergism of micropore trapping and nitrogen anchoring[J]. NATURE COMMUNICATIONS,2019,10.
APA Zhang, Zhiqi.,Chen, Yugang.,Zhou, Liqi.,Chen, Chi.,Han, Zhen.,...&Hu, Zheng.(2019).The simplest construction of single-site catalysts by the synergism of micropore trapping and nitrogen anchoring.NATURE COMMUNICATIONS,10.
MLA Zhang, Zhiqi,et al."The simplest construction of single-site catalysts by the synergism of micropore trapping and nitrogen anchoring".NATURE COMMUNICATIONS 10(2019).
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