期刊
RSC ADVANCES
卷 6, 期 71, 页码 66738-66744出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra12201a
关键词
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资金
- Postdoctoral Science Foundation of China [2015M571361]
- Natural Science Foundation Committee (NSFC) [51502110, 61504136]
- High Tech Project of Jilin Province [20150204029GX]
- Program for Chang Jiang Scholars and Innovative Research Team in University [IRT3018]
- Open Project from State Key Laboratory of Transducer Technology [SKT1402]
Special hollow ZnFe2O4/ZnO hybrid spheres were successfully designed and synthesized via a facile hydrothermal procedure. Carbon spheres were used as the core template, which were removed during the calcination process in an air-rich atmosphere, thus leading to interior voids and an outer shell structure due to the contraction and combustion of the carbon spheres. The hybrid ZnFe2O4/ZnO hollow spheres not only possess a hollow structure, but also have a porous shell with a thickness of approximately 30 nm. Inspired by this special structure and design composition, a gas sensor based on the hybrid ZnFe2O4/ZnO hollow spheres showed a high response and fast response/recovery speed compared with nanoparticles. A short response time usually enables a gas sensor to accurately detect and real-time monitor a certain target gas. This study may give insight for the rational fabrication of high performance sensing materials.
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