MOF-derived hierarchical ZnO/ZnFe2O4 hollow cubes for enhanced acetone gas-sensing performance | |
Ma, Xiang1,2; Zhou, Xinyuan1,2; Gong, Yan1,2; Han, Ning1; Liu, Haidi1; Chen, Yunfa1 | |
刊名 | RSC ADVANCES |
2017 | |
卷号 | 7期号:55页码:34609-34617 |
ISSN号 | 2046-2069 |
DOI | 10.1039/c7ra04437b |
文献子类 | 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关键词 | Metal-organic Frameworks ; Lithium-ion Battery ; Oxygen Reduction Reaction ; Sensor Performance ; Room-temperature ; Facile Synthesis ; Shell ; Fabrication ; Design ; Oxidation |
WOS研究方向 | Chemistry |
语种 | 英语 |
WOS记录号 | WOS:000405485700039 |
资助机构 | Strategic Project of Science and Technology of Chinese Academy of Science(XDB05050400) ; National Science and Technology(2014BAC21B00) |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/22986] |
专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
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 |
推荐引用方式 GB/T 7714 | 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. |
APA | Ma, Xiang,Zhou, Xinyuan,Gong, Yan,Han, Ning,Liu, Haidi,&Chen, Yunfa.(2017).MOF-derived hierarchical ZnO/ZnFe2O4 hollow cubes for enhanced acetone gas-sensing performance.RSC ADVANCES,7(55),34609-34617. |
MLA | Ma, Xiang,et al."MOF-derived hierarchical ZnO/ZnFe2O4 hollow cubes for enhanced acetone gas-sensing performance".RSC ADVANCES 7.55(2017):34609-34617. |
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