High-performance ethanol sensors based on hematite fluffy microtubes assembled with interconnected ultrafine nanorods

被引：4

作者：

Cairang, Limao ^{[1
,2
]}

Bai, Jing Long ^{[2
]}

Zhao, Chang Hui ^{[3
]}

Huang, Bao Yu ^{[2
]}

Sun, Geng Zhi ^{[4
]}

Zhang, Zhen Xing ^{[2
]}

Pan, Xiao Jun ^{[2
]}

Zhou, Jin Yuan ^{[2
]}

Zhang, Guo Heng ^{[1
]}

Xie, Er Qing ^{[2
]}

机构：

[1] Northwest Minzu Univ, Coll Elect Engn, Lanzhou 730030, Gansu, Peoples R China

[2] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Gansu, Peoples R China

[3] Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China

[4] Nanjing Tech Univ, Inst Adv Mat, Nanjing 211816, Jiangsu, Peoples R China

来源：

MATERIALS LETTERS | 2018年 / 222卷

基金：

中国国家自然科学基金;

关键词：

Semiconductors; Hematite (alpha-Fe2O3); Fluffy microtubes; Nanorods; Sensors; Ethanol; GAS-SENSING PROPERTIES; ALPHA-FE2O3; MICRORODS; IONIC LIQUID; DECOMPOSITION; DRUGS;

D O I：

10.1016/j.matlet.2018.03.177

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

It is reported that the response is dependent on its specific surface area, and the response/recovery rates are on the electron transfer channels. In this work, the authors have designed a type of fluffy hematite (alpha-Fe2O3) microtubes. Results indicate that these fluffy alpha-Fe2O3 microtubes are highly porous and composed of interconnected ultrafine nanorods. And the assembled gas sensors show a response of 16.8 to 100-ppm ethanol gas at 260 degrees C, the response time is of 2 s and the recovery time is of 25 s. Moreover, the sensors also show good gas selectivity and long-term stability. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：88 / 91

页数：4

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