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Synthesis of a highly active amino‐functionalized Fe 3 O 4 @SiO 2 /APTS/Ru magnetic nanocomposite catalyst for hydrogenation reactions
Author(s) -
Liu Yue,
Lv Mingxin,
Li Lu,
Yu Hailong,
Wu Qiong,
Pang Jinhui,
Liu Yuxiang,
Xie Congxia,
Yu Shitao,
Liu Shiwei
Publication year - 2019
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.4686
Subject(s) - catalysis , chemistry , nanocomposite , dispersity , ruthenium , nanoparticle , magnetization , chemical engineering , nuclear chemistry , inorganic chemistry , nanotechnology , polymer chemistry , organic chemistry , materials science , magnetic field , physics , quantum mechanics , engineering
An amino‐functionalized silica‐coated Fe 3 O 4 nanocomposite (Fe 3 O 4 @SiO 2 /APTS) was synthesized. The Fe 3 O 4 @SiO 2 microspheres possessed a well‐defined core–shell structure, uniform sizes and high magnetization. An immobilized ruthenium nanoparticle catalyst (Fe 3 O 4 @SiO 2 /APTS/Ru) was obtained after coordination and reduction of Ru 3+ on the Fe 3 O 4 @SiO 2 /APTS nanocomposite. The Ru nanoparticles were not only ultra‐small with nearly monodisperse sizes but also had strong affinity with the surface of Fe 3 O 4 @SiO 2 /APTS. The obtained catalyst exhibited excellent catalytic performance for the hydrogenation of a variety of aromatic nitro compounds, even at room temperature. Moreover, Fe 3 O 4 @SiO 2 /APTS/Ru was easily recovered using a magnetic field and directly reused for at least five cycles without significant loss of its activity.