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Green, Multi‐Gram One‐Step Synthesis of Core–Shell Nanocomposites in Water and Their Catalytic Application to Chemoselective Hydrogenations
Author(s) -
Urayama Teppei,
Mitsudome Takato,
Maeno Zen,
Mizugaki Tomoo,
Jitsukawa Koichiro,
Kaneda Kiyotomi
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201604763
Subject(s) - catalysis , nanoparticle , materials science , fabrication , nanocomposite , reuse , chemical engineering , metal , compatibility (geochemistry) , one step , gram , nanotechnology , chemistry , organic chemistry , waste management , composite material , metallurgy , medicine , alternative medicine , pathology , biology , bacteria , engineering , genetics
We devise a new and green route for the multi‐gram synthesis of core–shell nanoparticles (NPs) in one step under organic‐free and pH‐neutral conditions. Simply mixing core and shell metal precursors in the presence of solid metal oxides in water allowed for the facile fabrication of small CeO 2 ‐covered Au and Ag nanoparticles dispersed on metal oxides in one step. The CeO 2 ‐covered Au nanoparticles acted as a highly efficient and reusable catalyst for a series of chemoselective hydrogenations, while retaining C=C bonds in diverse substrates. Consequently, higher environmental compatibility and more efficient energy savings were achieved across the entire process, including catalyst preparation, reaction, separation, and reuse.