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Highly selective IrMo/TiO2 catalyst for hydrogenation of nitroarenes

Journal Article · · Molecular Catalysis (Online)
 [1];  [2];  [3];  [3];  [3];  [4];  [1]
  1. Chinese Academy of Sciences (CAS) (China); University of Chinese Academy of Sciences, Beijing (China)
  2. Northern Illinois Univ., DeKalb, IL (United States)
  3. Chinese Academy of Sciences (CAS) (China)
  4. Northern Illinois Univ., DeKalb, IL (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
The performance of many supported metal catalysts is markedly enhanced by promoters. Here, we demonstrate the introduction of Mo into TiO2-supported IrMo catalysts greatly boosts the 3-vinylaniline (3-VA) selectivity of the hydrogenation of 3-nitrostyrene (3-NS). With the rise of Mo component in IrMo/TiO2 catalysts, the Ir that activate H2 are surrounded by more Mo species and become more oxidized, which prevents flat adsorption of 3-NS on Ir; meanwhile, Mo(V) species that are favorable for activation of nitro group of 3-NS increase, thus the synergistic effect affords excellent 3-VA selectivity. The optimal catalyst 1Ir9Mo/TiO2 displays 99.8% selectivity of 3-VA at a 100% conversion. Furthermore, it also shows good recyclability and universality in selectively reducing unsaturated nitroarenes to corresponding anillines with exceptional selectivity.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Natural Science Foundation of China (NSFC); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
2000069
Alternate ID(s):
OSTI ID: 1900969
OSTI ID: 1962239
Journal Information:
Molecular Catalysis (Online), Journal Name: Molecular Catalysis (Online) Vol. 531; ISSN 2468-8231
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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