Premium
Mesoporous PtCu Alloy Nanoparticles with Tunable Compositions and Particles Sizes Using Diblock Copolymer Micelle Templates
Author(s) -
Kang Yunqing,
Jiang Bo,
Alothman Zeid A.,
Badjah Ahmad Yacine,
Naushad Mu,
Habila Mohamed,
Wabaidur Saikh,
Henzie Joel,
Li Hexing,
Yamauchi Yusuke
Publication year - 2019
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.201804305
Subject(s) - bimetallic strip , mesoporous material , copolymer , materials science , nanoporous , nanoparticle , micelle , template , catalysis , mesoporous silica , nanotechnology , chemical engineering , alloy , methanol , nanostructure , mesoporous organosilica , polymer , chemistry , organic chemistry , aqueous solution , composite material , engineering
A simple, scalable route for the generation of mesoporous Rh particles by chemical reduction on self‐assembled block‐copolymer micelle templates was reported recently ( Nat. Commun . 2017 , 8 , 15581). Here, this concept is extended to generate mesoporous PtCu alloy nanoparticles through the same approach. The PtCu alloy particles possess high‐surface‐area nanoporous architectures and good chemical stability for applications in catalysis. Both the composition and diameter of the bimetallic PtCu nanoparticles can be controlled by adjusting the amount of precursor in the reaction, which affects the electrochemical properties of the material. The combination of the mesoporous structure with the synergistic bimetallic electronic effects of PtCu gives rise to enhanced activity for the catalytic oxidation of methanol compared with commercial Pt black.