Chlorobenzene sensor based on Pt-decorated porous single-crystalline ZnO nanosheets

被引：42

作者：

Gu, Cuiping ^{[1
]}

Huang, Huanhuan ^{[1
,2
]}

Huang, Jiarui ^{[1
]}

Jin, Zhen ^{[2
]}

Zheng, Hanxiong ^{[2
,3
]}

Liu, Ning ^{[3
]}

Li, Minqiang ^{[2
]}

Liu, Jinhuai ^{[2
]}

Meng, Fanli ^{[2
]}

机构：

[1] Anhui Normal Univ, Coll Chem & Mat Sci, Ctr Nano Sci & Technol, Wuhu 241000, Peoples R China

[2] Chinese Acad Sci, Inst Intelligent Machines, Nanomat & Environm Detect Lab, Hefei 230031, Peoples R China

[3] Anhui Polytech Univ, Dept Mech & Automot Engn, Wuhu 241000, Peoples R China

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2016年 / 252卷

基金：

中国国家自然科学基金;

关键词：

Chlorobenzene; Sensor; Pt; Porous single-crystalline; ZnO nanosheet; GAS-SENSING PROPERTIES; FACILE SYNTHESIS; NANOSTRUCTURES; PERFORMANCE; NANORODS; ETHANOL; NANOPARTICLES; MICROSPHERES; FABRICATION; REDUCTION;

D O I：

10.1016/j.sna.2016.11.004

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Detection of chlorobenzene is a challenge for metal oxide gas sensors because of its stable molecule structure. In this work, Pt-decorated porous single-crystalline ZnO nanosheets (PSC ZnO NSs) were successfully synthesized via a one-pot hydrothermal method followed by a liquid phase reduction process. The morphology and structure of the as-prepared sample were well characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), energy dispersive spectrum (EDS) and ICP-MS analysis. From gas-sensing test, it can be found that the decoration of Pt nanoparticles largely enhanced the sensing performance of the PSC ZnO NSs. The Pt-decorated PSC ZnO NSs showed good response to low concentrations of chlorobenzene from 10 to 500 ppb. In contrast, the Au and Ag-decorated PSC ZnO NSs had still no response to 500 ppb of chlorobenzene. The enhancement sensing mechanism of Pt nanoparticle decoration has also been discussed in detail. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：96 / 103

页数：8

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