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学科主题: 物理化学
题名: Controlled ZnO hierarchical structure for improved gas sensing performance
作者: Yin, Mingli1, 2;  Liu, Shengzhong1, 3
通讯作者: 刘生忠
关键词: ZnO ;  Hierarchical ;  Nanosheet ;  Nanoneedle ;  Sensor
刊名: SENSORS AND ACTUATORS B-CHEMICAL
发表日期: 2015-03-31
DOI: 10.1016/j.snb.2014.11.129
卷: 209, 期:1, 页:343-351
收录类别: SCI
文章类型: Article
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
英文摘要: ZnO hierarchical aggregates, assembled by either nanosheets or nanoneedles, with well-controlled morphologies were prepared using a solvothermal method at ambient temperature. It is found that the morphology transition of the hierarchical aggregates can be controlled by adjusting reactant composition. A possible growth mechanism is proposed to interpret how the nanosheet and nanoneedle aggregated structures are formed. The aggregate sample assembled by 1D building blocks has smaller surface to volume ratio, comparing to the 2D block-assembled one. However, the former shows higher gas response, while the later exhibits better selectivity as well as faster response and recovery rates. The better selectivity can be attributed to the larger specific surface area and the exposed special active planes of 2D structure. (C) 2014 Elsevier B.V. All rights reserved.
关键词[WOS]: SENSITIZED SOLAR-CELLS ;  NANOSTRUCTURES ;  MICROSPHERES ;  NANORODS ;  SENSOR
语种: 英语
WOS记录号: WOS:000349082200045
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143870
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Shaanxi Normal Univ, Sch Mat Sci & Engn, Key Lab Appl Surface & Colloid Chem, Natl Minist Educ,Inst Adv Energy Mat, Xian 710062, Peoples R China
2.Xian Technol Univ, Sch Sci, Xian 710032, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Lab Clean Energy, Dalian 116023, Peoples R China

Recommended Citation:
Yin, Mingli,Liu, Shengzhong. Controlled ZnO hierarchical structure for improved gas sensing performance[J]. SENSORS AND ACTUATORS B-CHEMICAL,2015,209(1):343-351.
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