Polarized Cu-Bi Site Pairs for Non-Covalent to Covalent Interaction Tuning toward N2 Photoreduction

Bibliographische Detailangaben
Veröffentlicht in:	Advanced materials (Deerfield Beach, Fla.). - 1998. - 34(2022), 37 vom: 31. Sept., Seite e2204959
1. Verfasser:	Di, Jun (VerfasserIn)
Weitere Verfasser:	Chen, Chao, Wu, Yao, Zhao, Yunxuan, Zhu, Chao, Zhang, Yi, Wang, Changda, Chen, Hailong, Xiong, Jun, Xu, Manzhang, Xia, Jiexiang, Zhou, Jiadong, Weng, Yuxiang, Song, Li, Li, Shuzhou, Jiang, Wei, Liu, Zheng
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2022
Zugriff auf das übergeordnete Werk:	Advanced materials (Deerfield Beach, Fla.)
Schlagworte:	Journal Article altered hydrogenation pathways atomic layers non-covalent interactions polarized metal sites

Beschreibung
Zusammenfassung:	© 2022 Wiley-VCH GmbH. A universal atomic layer confined doping strategy is developed to prepare Bi24 O31 Br10 materials incorporating isolated Cu atoms. The local polarization can be created along the CuOBi atomic interface, which enables better electron delocalization for effective N2 activation. The optimized Cu-Bi24 O31 Br10 atomic layers show 5.3× and 88.2× improved photocatalytic nitrogen fixation activity than Bi24 O31 Br10 atomic layer and bulk Bi24 O31 Br10 , respectively, with the NH3 generation rate reaching 291.1 µmol g-1 h-1 in pure water. The polarized Cu-Bi site pairs can increase the non-covalent interaction between the catalyst's surface and N2 molecules, then further weaken the covalent bond order in NN. As a result, the hydrogenation pathways can be altered from the associative distal pathway for Bi24 O31 Br10 to the alternating pathway for Cu-Bi24 O31 Br10 . This strategy provides an accessible pathway for designing polarized metal site pairs or tuning the non-covalent interaction and covalent bond order
Beschreibung:	Date Revised 15.09.2022 published: Print-Electronic Citation Status PubMed-not-MEDLINE
ISSN:	1521-4095
DOI:	10.1002/adma.202204959