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Polypyrrole‐wrapped Pd nanoparticles hollow capsules as a catalyst for reduction of 4‐nitroaniline
Author(s) -
Zou Hanzhi,
Shang Mengyin,
Ren Guohong,
Wang Wenqin
Publication year - 2016
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.43933
Subject(s) - polypyrrole , polystyrene , materials science , nanoparticle , palladium , catalysis , chemical engineering , layer (electronics) , polymer chemistry , etching (microfabrication) , composite material , nanotechnology , polymerization , chemistry , polymer , organic chemistry , engineering
ABSTRACT In this study, by in situ reduction of Pd 2+ ions attached on the surface of the sulfonated polystyrene (PS‐SO 3 H) spheres, complete and dense palladium (Pd) nanoparticles (NPs) layer were deposited around PS‐SO 3 H spheres. The PS@Pd spheres were wrapped by polypyrrole (PPy) shell, which could avoid escaping of Pd NPs. After selectively etching the PS core, the hollow structures with Pd NPs embedded in PPy capsule shell were obtained. The as‐prepared Pd@PPy hollow capsules showed excellent catalytic activity toward the reduction of 4‐nitroaniline because of the high Pd NPs loading. Furthermore, good reusabilty was demonstrated seven times without any detectible loss in activity. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43933.