文献类型：期刊文献

英文题名：Synergistic non-bonding diatomic Pt sites for efficient hydrogenation of nitro compounds

作者：Chen, Minhao[1];Jing, Yundao[1];Ge, Xiaohu[1];Cao, Yueqiang[1];Zhang, Jing[1];Qian, Gang[1];Jiang, Hao[2];Zhou, Xinggui[1];Chen, De[1,3];Yuan, Weikang[1];Duan, Xuezhi[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn & Low Carbon Technol, Shanghai, Peoples R China;[2]East China Univ Sci & Technol, Key Lab Ultrafine Mat, Shanghai Engn Res Ctr Hierarch Nanomat, Sch Mat Sci & Engn,Minist Educ, Shanghai, Peoples R China;[3]Norwegian Univ Sci & Technol, Dept Chem Engn, Trondheim, Norway

年份：2026

卷号：17

期号：1

外文期刊名：NATURE COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001735299800001)】；

基金：This work was financially supported by the National Key R&D Program of China (2022YFA1503804), the Natural Science Foundation of China (22538004, 22332003, 22478106, and 22408097), the Chang Jiang Scholars Program of the Ministry of Education of China (T2022163), the Natural Science Foundation of Shanghai (24ZR1415300), Shanghai Rising-star Program (23QA1401900), Young Elite Scientists Sponsorship Program by CAST (2023QNRC001), the Fundamental Research Funds for the Central Universities, the Fundamental and Interdisciplinary Disciplines Breakthrough Plan of the Ministry of Education of China (JYB2025XDXM404), the China Postdoctoral Science Foundation (2025T180311 and 2024M760912), and the Postdoctoral Fellowship Program of CPSF under Grant Number GZB20240222. We thank the Shanghai Synchrotron Radiation Facility of BL16U1 (https://cstr.cn/31124.02.SSRF.BL16U1) and BL13SSW (https://cstr.cn/31124.02.SSRF.BL13SSW) for the assistance on GIWAXS measurements.

语种：英文

摘要：Precisely constructed diatomic metal sites that bridge the gap between single-atom dispersion and cluster-like synergy offer a promising strategy to overcome the activity-selectivity trade-off in heterogeneous catalysis. In this work, we report the synthesis of a non-bonding diatomic Pt-2-ND@G catalyst via a two-step atomic layer deposition for the selective hydrogenation of m-dinitrobenzene. Aberration-corrected high-resolution scanning transmission electron microscopy combined with X-ray absorption spectroscopy reveals that Pt-2-ND@G predominantly contains high-density non-bonding Pt diatomic sites with well-tuned electronic interactions. Pt-2-ND@G achieves complete m-dinitrobenzene conversion with >99.0% selectivity toward m-phenylenediamine and retains high stability over five cycles under mild conditions, outperforming reference catalysts including isolated single atoms, fully exposed clusters, and nanoparticles. Experimental and theoretical studies further suggest that the electron-deficient non-bonding diatomic Pt sites synergistically activate both m-dinitrobenzene and hydrogen, while also promoting the efficient desorption of m-phenylenediamine. This work highlights the structural and electronic advantages of high-density diatomic catalysts for multi-step hydrogenation and offers a versatile platform for catalyst design.