Jian Zhang+, Xi Wu+, Weng-Chon Cheong, Wenxing Chen, Rui Lin, Jia Li, Lirong Zheng, Wensheng Yan, Lin Gu, Chen Chen, Qing Peng, Dingsheng Wang*, Yadong Li*, Cation vacancy stabilization of single-atomic-site Pt1/Ni(OH)x catalyst for diboration of alkynes and alkenes

Release time:2023-05-21 Hits:

DOI number:10.1038/s41467-018-03380-z

Journal:Nature Communications

Abstract:Development of single-atomic-site catalysts with high metal loading is highly desirable but proved to be very challenging. Although utilizing defects on supports to stabilize independent metal atoms has become a powerful method to fabricate single-atomic-site catalysts, little attention has been devoted to cation vacancy defects. Here we report a nickel hydroxide nanoboard with abundant Ni(2+) vacancy defects serving as the practical support to achieve a single-atomic-site Pt catalyst (Pt1/Ni(OH)x) containing Pt up to 2.3 wt% just by a simple wet impregnation method. The Ni(2+) vacancies are found to have strong stabilizing effect of single-atomic Pt species, which is determined by X-ray absorption spectrometry analyses and density functional theory calculations. This Pt1/Ni(OH)x catalyst shows a high catalytic efficiency in diboration of a variety of alkynes and alkenes, yielding an overall turnover frequency value upon reaction completion for phenylacetylene of ~3000 h(-1), which is much higher than other reported heterogeneous catalysts.

Indexed by:Journal paper

Discipline:Natural Science

Document Type:J

Volume:9

Page Number:1002

Translation or Not:no

Date of Publication:2018-03-10

Included Journals:SCI

Links to published journals:https://www.nature.com/articles/s41467-018-03380-z