@article{Yao2023, 
author = {Aimin Yao and Yuanxin Du and Meng Han and Yan Wang and Jiashen Hu and Qingtao Zhu and Hongting Sheng and Manzhou Zhu},
title = {Covalence bridge atomically precise metal nanocluster and metal-organic frameworks for enhanced photostability and photocatalysis},
year = {2023},
journal = {Nano Research},
volume = {16},
number = {1},
pages = {1527-1532},
keywords = {metal-organic frameworks, photostability, photocatalytic hydrogen production, atomically precise nanoclusters, covalent binding},
url = {https://www.sciopen.com/article/10.1007/s12274-022-4725-4},
doi = {10.1007/s12274-022-4725-4},
abstract = {Metal nanoclusters (NCs) with precise structure and ultrasmall size have attracted great interests in catalysis. However, the poor stability has limited its large-scale use. Herein, we proposed the “covalence bridge” strategy to effectively connect atomically precise metal NCs and metal-organic frameworks. Benefiting from the covalent linkage, the synthesized UiO-66-NH2-Au25(L-Cys)18 showed outstanding stability after 16 h photocatalysis. Moreover, the covalence bridge created a strong metal-support interaction between the two components and provided an effective charge transport channel and thereby enhanced photocatalytic activity. UiO-66-NH2-Au25(L-Cys)18 displayed an exceptional photocatalytic H2 production rate, which is 21 and 90 times higher than that of UiO-66-NH2/Au25(PET)18 (made by physically combination) and bare UiO-66-NH2, respectively. Thermodynamic and kinetic studies demonstrated that UiO-66-NH2-Au25(L-Cys)18 exhibited higher charge transfer efficiency, lower overpotential of water reduction and activation energy barrier compared with its counterparts.}
}