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Direct observation of noble metal nanoparticles transforming to thermally stable single atoms
时间:2018-10-26 10:29:07
作品信息

期刊

Nature Nanotechnology

标题

Direct observation of noble metal nanoparticles transforming to thermally stable single atoms

作者

Shengjie Wei, Ang Li, Jin-Cheng Liu, Zhi Li, Wenxing Chen, Yue Gong, Qinghua Zhang, Weng-Chon Cheong, Yu Wang, Lirong Zheng, Hai Xiao, Chen Chen, Dingsheng Wang, Qing Peng, Lin Gu, Xiaodong Han, Jun Li & Yadong Li

摘要

Direct observation of thermal atomizationMetal atoms tend to sinter at high temperature, leading to a decrease in the reactivity of atomically dispersed catalysts. Y. Li and co-workers report an unexpected phenomenon. After encapsulating palladium, platinum and gold nanoparticles in ZIF-8, they observed the progressive atomic dispersion of these noble metal atoms as single sites in the nitrogen-doped carbon derived from ZIF-8 pyrolysis. The cover is an artist's depiction of the thermal atomization process that requires the interaction of noble metal atoms with the defects of N-doped carbon. The thermally stable single atoms exhibit promising performance towards the semi-hydrogenation of acetylene.

原文链接

https://www.nature.com/nnano/volumes/13/issues/9

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