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Hydrogenation of Functionalized Nitroarenes Catalyzed by Single‐Phase Pyrite FeS 2 Nanoparticles on N,S‐Codoped Porous Carbon
Author(s) -
Duan Yanan,
Dong Xiaosu,
Song Tao,
Wang Zhaozhan,
Xiao Jianliang,
Yuan Youzhu,
Yang Yong
Publication year - 2019
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201901867
Subject(s) - catalysis , chemoselectivity , pyrite , chemical engineering , nanoparticle , pyrolysis , porosity , chemistry , carbon fibers , noble metal , solvent , inorganic chemistry , materials science , organic chemistry , nanotechnology , mineralogy , composite number , engineering , composite material
Catalytic hydrogenation of nitroarenes is an industrially very important and environmentally friendly process for the production of anilines; however, highly chemoselective reduction of nitroarenes decorated with one or more reducible groups in a nitroarene molecule remains a challenge. Herein, a novel hybrid non‐noble iron‐based nanocatalyst (named as FeS 2 /NSC) was developed, which was prepared from biomass as C and N source together with inexpensive Fe(NO 3 ) 3 as Fe source through high‐temperature pyrolysis in a straightforward and cost‐effective procedure. Comprehensive characterization revealed that single‐phase pyrite FeS 2 nanoparticles with precisely defined composition and uniform size were homogeneously dispersed on N,S‐codoped porous carbon with large specific surface area, hierarchical porous channels, and high pore volume. The resultant catalyst FeS 2 /NSC demonstrated good catalytic activity for hydrogenation of functionalized nitroarenes with good tolerance of various functional groups in water as a sustainable and green solvent. Compared with bulk pyrite FeS 2 and other non‐noble metal‐based heterogeneous catalysts reported in the literature, a remarkably enhanced activity was observed under mild reaction conditions. More importantly, FeS 2 /NSC displayed exclusive chemoselectivity for the reduction of nitro groups for nitroarenes bearing varying readily reducible groups.