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A Simple Approach to Generate Hollow Carbon Nanospheres Loaded with Uniformly Dispersed Metal Nanoparticles
Author(s) -
Li Yunqi,
Tan Haibo,
Takei Toshiaki,
Hossain Md. Shahriar A.,
Islam Md. Tofazzal,
Alshehri Saad M.,
Ahamad Tansir,
Salunkhe Rahul R.,
Pradhan Subrata,
Henzie Joel,
Yamauchi Yusuke,
Ariga Katsuhiko
Publication year - 2017
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201700921
Subject(s) - nanoparticle , metal , chemistry , micelle , oxide , pyrolysis , chemical engineering , ethylene oxide , substrate (aquarium) , metal ions in aqueous solution , carbon fibers , nanotechnology , copolymer , polymer chemistry , materials science , organic chemistry , composite number , polymer , composite material , oceanography , geology , aqueous solution , engineering
We describe a simple and versatile method to synthesize hollow carbon nanospheres (HCNs) loaded with well‐distributed metal nanoparticles (i.e., Ir‐HCNs, MoO 2 ‐HCNs, and WO 2 /WO 3 ‐HCNs). This procedure uses the electrostatic interaction between negatively charged metal precursors and positively charged micelle templates made of poly(styrene‐ b ‐2‐vinyl pyridine‐ b ‐ethylene oxide). The ion pairs are neutralized inside the micelles and then coated with a layer of phenolic resol. Pyrolysis transforms the nanoparticles into HCNs decorated with metal/metal oxide nanoparticles. HCNs are an excellent substrate for the in situ growth of metal nanoparticles, and this procedure can even provide reasonable control over the average size of the metal nanoparticles.