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Multiple Cores‐Shell Structured Cu@SiO 2 Ultrathin Leaf‐Shaped Nanocomposite: Facile Fabrication and Excellent Selective Catalytic Hydrogenation Performance
Author(s) -
Liu Jun,
Liu Dan,
Zhang Yingbo,
Wang Jing,
Li Hongmei,
Zhou Li,
Wu Shan
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201800553
Subject(s) - furfuryl alcohol , materials science , fabrication , furfural , nanocomposite , catalysis , chemical engineering , mesoporous material , selectivity , copper , composite number , nickel , dispersion (optics) , shell (structure) , nanotechnology , composite material , metallurgy , organic chemistry , chemistry , medicine , alternative medicine , physics , optics , pathology , engineering
The facile preparation core‐shell structured Cu@SiO 2 nanocomposites with high copper loading and dispersion still remains a difficult challenge. Herein, we report the efficient fabrication of a core‐shell structured Cu@SiO 2 leaf‐shaped nanocatalyst which possesses multiple copper nanoplatelets with high content as cores and ultrathin mesoporous silica as shell. This catalyst exhibits excellent catalytic performance in gas phase catalytic hydrogenation of furfural (with furfural conversion of 97% and furfuryl alcohol selectivity of 98%) and liquid phase catalytic reduction of p‐nitrophenol to p‐aminophenol (with activity parameter =69.0×10 −3 s −1 mg −1 ). This unique fabrication strategy is also successfully applied to synthesize multiple cores‐shell structured Ni@SiO 2 nanosheet composite with uniform and ultrafine nickel particles and extremely high nickel loading. It is expected that this strategy can be expanded to other diverse multiple core‐shell architectures.