First Author:Ze-Nan Hu

Correspondence Author:Hong-bin Sun,Jiangwei Zhang,Fei Huang

Co author:Limin Wu,Yongjian Ai, Yan Zhao, Yiming Wang,Kelong Ding,Wenhui Zhang, Rongxiu Guo, Xinyue Zhang,Xiangbin Cai, Ning Wang,Jianshe Hu, Qionglin Liang, Hongyang Liu

Journal:Nano Research

Issue:2

Volume:16

Impact Factor:9.5

DOI number:10.1007/s12274-022-5277-3

Affiliation of Author(s):Department of Chemistry, Tsinghua University

Teaching and Research Group:物理化学

Place of Publication:PEOPLES R CHINA

Abstract:Nanocatalysts are likely to contain undetected single-atom components, which may have been ignored but have significant effect in catalytic reactions. Herein, we report a catalyst composed of Mo single atoms (SAs) and MoO2 nanoparticles (NPs) (Mo-sAs-MoO2@NC), which is an exact model to understand how the SAs contribute to the nanocatalyst. Both experimental results and the density functional theory calculations reveal that Mo SAs on nitrogen -doped carbon provides the reaction zone for nitro reduction, while MoO2 is the active site for decomposing hydrazine hydrate to produce Thanks to the synergy between Mo SAs and MoO2 NPs, this catalyst exhibits noble metal-like catalytic activity (100% conversion at 4 min) for the dechlorinationproof transfer hydrogenation. Additionally, the hydrogen migration on the catalyst is verified by the electrochemical tests in the absence of a hydrogen source. This work provides a model for further study on the coexistence of single atoms in nanoparticle catalysts.

Key Words:synergistic effectMo single atomsMoO2 nanocatalysttransfer hydrogenationnitroarenes

Document Code:WOS:000898700700012

Discipline:Natural Science

First-Level Discipline:Chemistry

Page Number:2302-2310

ISSN No.:1998-0124

Translation or Not:no