Fe2O3 nanoparticles-decorated MoO3 nanobelts for enhanced chemiresistive gas sensing

被引：67

作者：

Qu, Fengdong ^{[1
,2
]}

Zhou, Xinxin ^{[2
,3
]}

Zhang, Bingxue ^{[2
]}

Zhang, Shendan ^{[2
]}

Jiang, Chunjie ^{[3
]}

Ruan, Shengping ^{[1
]}

Yang, Minghui ^{[2
]}

机构：

[1] Jilin Univ, Coll Elect Sci & Engn, Changchun 130012, Jilin, Peoples R China

[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Key Lab Marine Mat & Protect Technol, Key Lab Marine Mat & Related Technol, Ningbo 315201, Zhejiang, Peoples R China

[3] Liaoning Normal Univ, Sch Chem & Chem Engn, Dalian 116029, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2019年 / 782卷

基金：

中国国家自然科学基金;

关键词：

Fe2O3/MoO3; Heterostructure; Nanobelts; Xylene; Gas sensor; SELECTIVE DETECTION; XYLENE; METAL; SENSOR; HETEROJUNCTIONS; NANOSTRUCTURES;

D O I：

10.1016/j.jallcom.2018.12.258

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, we report the fabrication of high-performance gas sensor based on a heterojunction structure in which Fe2O3 nanoparticles were used to decorate MoO3 nanobelts. The pure MoO3 nanobelts exhibited a response to 100 parts per million (ppm) of xylene (ratio of resistance to air and gas = 9.08), with no obviously lower cross-responses to 100 ppm of ethanol, acetone, benzene, toluene, methanol and butanol. Compared with pristine MoO3 nanobelts, Fe2O3 nanoparticles decorated nanobelts demonstrated about 2-4 times higher response toward xylene. The enhanced sensing properties of Fe2O3 nanoparticles-decorated MoO3 heterostructured nanobelts can be attributed to the formation of heterojunction between Fe2O3 and MoO3. These results, combined with other reported literature, indicate that controlled engineering of surface loading/decorating is an effective strategy for designing highly sensitive and selective semiconducting metal oxide based gas sensors. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：672 / 678

页数：7

共 25 条

[1] Metal oxide-based gas sensor research: How to? [J].

Barsan, N. ;

Koziej, D. ;

Weimar, U. .

SENSORS AND ACTUATORS B-CHEMICAL, 2007, 121 (01) :18-35

[2] Methanal and xylene sensors based on ZnO nanoparticles and nanorods prepared by room-temperature solid-state chemical reaction [J].

Cao, Yali ;

Hu, Pengfei ;

Pan, Weiyu ;

Huang, Yudai ;

Jia, Dianzeng .

SENSORS AND ACTUATORS B-CHEMICAL, 2008, 134 (02) :462-466

[3] Metal and metal oxide nanoparticles in chemiresistors: Does the nanoscale matter? [J].

Franke, ME ;

Koplin, TJ ;

Simon, U .

SMALL, 2006, 2 (01) :36-50

[4] Gas Sensors Based on Semiconducting Metal Oxide One-Dimensional Nanostructures [J].

Huang, Jin ;

Wan, Qing .

SENSORS, 2009, 9 (12) :9903-9924

[5] Xylene sensor based on α-MoO3 nanobelts with fast response and low operating temperature [J].

Jiang, Dingsheng ;

Wang, Ying ;

Wei, Wei ;

Li, Feng ;

Li, Yujia ;

Zhu, Linghui ;

Feng, Caihui ;

Liu, Caixia ;

Ruan, Shengping .

RSC ADVANCES, 2015, 5 (24) :18655-18659

[6] Ultraselective and sensitive detection of xylene and toluene for monitoring indoor air pollution using Cr-doped NiO hierarchical nanostructures [J].

Kim, Hyo-Joong ;

Yoon, Ji-Wook ;

Choi, Kwon-Il ;

Jang, Ho Won ;

Umar, Ahmad ;

Lee, Jong-Heun .

NANOSCALE, 2013, 5 (15) :7066-7073

[7] Enhanced gas sensing by individual SnO2 nanowires and nanobelts functionalized with Pd catalyst particles [J].

Kolmakov, A ;

Klenov, DO ;

Lilach, Y ;

Stemmer, S ;

Moskovits, M .

NANO LETTERS, 2005, 5 (04) :667-673

[8] Highly sensitive and selective butanol sensors using the intermediate state nanocomposites converted from β-FeOOH to α-Fe2O3 [J].

Li, Minqiang ;

Li, Bo ;

Meng, Fanli ;

Liu, Jinyun ;

Yuan, Zhenyu ;

Wang, Chen ;

Liu, Jinhuai .

SENSORS AND ACTUATORS B-CHEMICAL, 2018, 273 :543-551

[9] Solid-state chemical synthesis of mesoporous α-Fe2O3 nanostructures with enhanced xylene-sensing properties [J].

Li, Yizhao ;

Cao, Yali ;

Jia, Dianzeng ;

Wang, Yang ;

Xie, Jing .

SENSORS AND ACTUATORS B-CHEMICAL, 2014, 198 :360-365

[10] Hierarchical SnO2 Nanostructures Made of Intermingled Ultrathin Nanosheets for Environmental Remediation, Smart Gas Sensor, and Supercapacitor Applications [J].

Liu, Yang ;

Jiao, Yang ;

Zhang, Zhenglin ;

Qu, Fengyu ;

Umar, Ahmad ;

Wu, Xiang .

ACS APPLIED MATERIALS & INTERFACES, 2014, 6 (03) :2174-2184

← 1 2 3 →