VO2 nanostructures based chemiresistors for low power energy consumption hydrogen sensing

被引：107

作者：

Simo, Aline ^{[1
,2
]}

Mwakikunga, Bonex ^{[3
]}

Sone, Bertrand T. ^{[1
]}

Julies, Basil ^{[2
]}

Madjoe, Reginaldt ^{[2
]}

Maaza, Malik ^{[1
,4
]}

机构：

[1] Nat Res Fdn, iThemba LABS, Mat Res Dept, Nanosci African Network NANOAFNET, Somerset West, Western Cape Pr, South Africa

[2] Univ Western Cape, Dept Phys, ZA-7535 Bellville, South Africa

[3] CSIR, Natl Ctr Nanostruct Mat, ZA-0001 Pretoria, South Africa

[4] Univ S Africa, Coll Grad Studies, UNESCO UNISA Africa Chair Nanosci Nanotechnol, Pretoria, South Africa

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2014年 / 39卷 / 15期

基金：

新加坡国家研究基金会;

关键词：

Hydrogen gas sensing; Vanadium dioxide nanobelts; Mott type oxides; Size effects; Surface-interface; Low power consumption; METAL-INSULATOR-TRANSITION; ROOM-TEMPERATURE; THIN-FILMS; PHASE-TRANSITIONS; HIGH-SENSITIVITY; GAS SENSORS; NANOBELTS; NANOWIRES; FABRICATION; NANORODS;

D O I：

10.1016/j.ijhydene.2014.03.037

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：

Mott-type VO2 oxide nanobelts are demonstrated to be effective hydrogen gas sensors at room temperature. These nanobelts, synthesized by hydrothermal process and exhibiting the VO2 (A) crystallographic phase, display room temperature H-2 sensitivity as low as 0.17 ppm. The nanobelts (ultralong belt-like) nanostructures could be an ideal system for fully understanding dimensionally confined transport phenomena in functional oxides and for building functional devices based on individual nanobelts. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：8147 / 8157

页数：11

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