Premium
A Predictable Catalyst Model for Highly Active and Selective Catalysis of Hydrogenation of Nitroarenes: Comprehension of Various Precious Metal Nanoparticles
Author(s) -
Hu ZeNan,
Ai Yongjian,
Liu Lei,
Chen Yixin,
Song Xiang,
Li Jifan,
Yu Jiaheng,
Tian Haimeng,
Guo Rongxiu,
Sun Hongbin,
Hu Jianshe,
Liang Qionglin
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201902295
Subject(s) - catalysis , x ray photoelectron spectroscopy , chemoselectivity , nanomaterial based catalyst , precious metal , metal , platinum , nanoparticle , chemistry , materials science , chemical engineering , nanotechnology , organic chemistry , engineering
Various precious metal catalysts have been commonly used in catalytic reactions, but the differences and likeness between their catalytic performances are rarely systematically studied. Therefore, we have prepared the Pd, Pt, Rh, Ru, Au, and Ag/Fe 3 O 4 catalysts, and the similarities and differences of various catalysts are analyzed by XRD, FT‐IR, TEM, HR‐TEM, XPS, BET, and VSM characterizations. Besides that platinum is the best catalyst component, the Pd and Rh/Fe 3 O 4 catalysts also exhibit excellent catalytic activity and chemoselectivity, but the Ru, Au, Ag‐containing catalysts show poor catalytic performance for hydrogenation of 4‐nitrophenol. According to the kinetic study, we have demonstrated that the reaction orders for Pd, Pt, and Rh are 0.8, 0.8, and 1.5, respectively. This result reveals that the activity of Pd, Pt, and Rh‐containing catalysts can be precisely predicted. Moreover, our catalytic system is fascinating with many advantages such as environmental friendliness, mild reaction conditions, and the magnetic separability.