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题名:
MOF-derived hierarchical ZnO/ZnFe2O4 hollow cubes for enhanced acetone gas-sensing performance
作者: Ma, Xiang1,2; Zhou, Xinyuan1,2; Gong, Yan1,2; Han, Ning1; Liu, Haidi1; Chen, Yunfa1
刊名: RSC ADVANCES
出版日期: 2017
卷号: 7, 期号:55, 页码:34609-34617
收录类别: SCI
WOS记录号: WOS:000405485700039
DOI: 10.1039/c7ra04437b
文章类型: Article
英文摘要: ZnO/ZnFe2O4 hollow cube composites with heterogeneous structure are synthesized by a facile strategy through simple and direct pyrolysis of FeIII-modified Zn-based metal-organic frameworks. The assynthesized ZnO/ZnFe2O4 hollow cubes have well-defined cube morphology with an similar to 2 mu m and multiple porous shell constructed from interpenetrated ZnO and ZnFe2O4 heterogeneous nanoparticles, providing structurally combined mesoporous channels for facilitating the diffusion and surface reaction of gas molecules. In addition, a comparative sensing performance investigation between ZnO/ZnFe2O4 hollow cubes and singular ZnO demonstrates that, in contrast with ZnO, the ZnO/ZnFe2O4 hollow cubes show significantly enhanced chemical sensing sensitivity towards low-concentration acetone. Furthermore, the ZnO/ZnFe2O4 hollow cubes exhibit good reproducibility and selectivity towards gaseous acetone. The enhanced sensing performance of the MOF-derived ZnO/ZnFe2O4 hollow cubes is ascribed to the unique hierarchical structure with high specific surface area, abundant exposed active sites with surface-adsorbed oxygen species and heterojunctions formed at the interfaces between ZnO and ZnFe2O4.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
关键词[WOS]: METAL-ORGANIC FRAMEWORKS ; LITHIUM-ION BATTERY ; OXYGEN REDUCTION REACTION ; SENSOR PERFORMANCE ; ROOM-TEMPERATURE ; FACILE SYNTHESIS ; SHELL ; FABRICATION ; DESIGN ; OXIDATION
项目资助者: Strategic Project of Science and Technology of Chinese Academy of Science(XDB05050400) ; National Science and Technology(2014BAC21B00)
语种: 英语
ISSN号: 2046-2069
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ipe.ac.cn/handle/122111/22986
Appears in Collections:多相复杂系统国家重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China

Recommended Citation:
Ma, Xiang,Zhou, Xinyuan,Gong, Yan,et al. MOF-derived hierarchical ZnO/ZnFe2O4 hollow cubes for enhanced acetone gas-sensing performance[J]. RSC ADVANCES,2017,7(55):34609-34617.
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