MOF-derived hierarchical hollow ZnO nanocages with enhanced low-concentration VOCs gas-sensing performance
文献类型：期刊论文
| 作者 | Li, Wenhui1,2; Wu, Xiaofeng1; Han, Ning1; Chen, Jiayuan1,2; Qian, Xihui1,2; Deng, Yuzhou1,2; Tang, Wenxiang1,3; Chen, Yunfa1
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| 刊名 | SENSORS AND ACTUATORS B-CHEMICAL
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| 出版日期 | 2016-03-31 |
| 卷号 | 225期号:MAR页码:158-166 |
| 关键词 | MOF-derived ZnO nanocages Hierarchical hollow structure ppb or sub-ppm level VOCs gas sensors |
| ISSN号 | 0925-4005 |
| 英文摘要 | The design and synthesis of nanostructured ZnO with high chemical sensing properties, especially towards ppb or sub-ppm level VOC gases is still highly desired and challengeable. Herein, the hierarchical hollow ZnO nanocages were synthesized by a facile strategy through the simple and direct pyrolysis of Zn-based metal-organic framework. The as-synthesized hollow ZnO products present the typical hierarchical structures with hollow interiors enveloped by interpenetrated ZnO nanoparticles as porous shell, providing structurally combined meso-/macro-porous channels for facilitating the diffusion and surface reaction of gas molecules. The gas-sensing experiments demonstrate that, in contrast with singular ZnO nanoparticles, the ZnO nanocages show significantly enhanced chemical sensing sensitivity and selectivity towards low-concentration volatile organic compounds, typically, acetone and benzene. Furthermore, the ZnO hollow nanocages perform sub-ppm level sensitivity with 2.3 ppm(-1) towards 0.1 ppm benzene, and ppb level sensitivity with 15.3 ppm(-1) towards 50 ppb acetone, respectively. The enhanced sensing performance of the MOF-derived ZnO nanocages is ascribed to the unique hierarchical structure with high specific surface area and abundant exposed active sites with surface-adsorbed oxygen. (C) 2015 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation |
| 研究领域[WOS] | Chemistry ; Electrochemistry ; Instruments & Instrumentation |
| 关键词[WOS] | METAL-ORGANIC-FRAMEWORK ; TEMPLATED SYNTHESIS ; FACILE SYNTHESIS ; CARBON-DIOXIDE ; PROPERTY ; NANOPARTICLES ; MICROSPHERES ; SENSORS ; SPHERES ; ETHANOL |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000366759500020 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/20195]  |
| 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 Multi Phase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Connecticut, Inst Mat Sci, Storrs, CT 06269 USA |
| 推荐引用方式 GB/T 7714 | Li, Wenhui,Wu, Xiaofeng,Han, Ning,et al. MOF-derived hierarchical hollow ZnO nanocages with enhanced low-concentration VOCs gas-sensing performance[J]. SENSORS AND ACTUATORS B-CHEMICAL,2016,225(MAR):158-166. |
| APA | Li, Wenhui.,Wu, Xiaofeng.,Han, Ning.,Chen, Jiayuan.,Qian, Xihui.,...&Chen, Yunfa.(2016).MOF-derived hierarchical hollow ZnO nanocages with enhanced low-concentration VOCs gas-sensing performance.SENSORS AND ACTUATORS B-CHEMICAL,225(MAR),158-166. |
| MLA | Li, Wenhui,et al."MOF-derived hierarchical hollow ZnO nanocages with enhanced low-concentration VOCs gas-sensing performance".SENSORS AND ACTUATORS B-CHEMICAL 225.MAR(2016):158-166. |
入库方式： OAI收割
来源：过程工程研究所
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