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Multishelled Metal Oxide Hollow Spheres: Easy Synthesis and Formation Mechanism
Author(s) -
Wu Hongjing,
Wu Guanglei,
Ren Yanyan,
Li Xinghua,
Wang Liuding
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.201504358
Subject(s) - non blocking i/o , methyl orange , materials science , spheres , shell (structure) , metal , hydrothermal circulation , oxide , chemical engineering , photocatalysis , nanotechnology , composite material , metallurgy , chemistry , catalysis , physics , organic chemistry , astronomy , engineering
Uniform multishelled NiO, Co 3 O 4 , ZnO, and Au@NiO hollow spheres were synthesized (NiO and Co 3 O 4 hollow spheres for the first time) by a simple shell‐by‐shell self‐assembly allowing for tuning of the the size, thickness and shell numbers by controlling the heat treatment, glucose/metal salt molar ratio, and hydrothermal reaction time. These findings further the development of synthetic methodologies for multishelled hollow structures and could open up new opportunities for deeper understanding of the mechanisms of shell‐by‐shell self‐assembly. Moreover, the double‐shelled NiO hollow sphere exhibits a higher photocatalytic activity for degradation of methyl orange than its morphological counterparts.