Resistive-type hydrogen gas sensor based on TiO2: A review

被引：253

作者：

Li, Zhong ^{[1
,2
]}

Yao, ZhengJun ^{[1
]}

Haidry, Azhar Ali ^{[1
]}

Plecenik, Tomas ^{[2
]}

Xie, LiJuan ^{[1
]}

Sun, LinChao ^{[1
]}

Fatima, Qawareer ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 211100, Jiangsu, Peoples R China

[2] Comenius Univ, Fac Math Phys & Informat, Bratislava 84248, Slovakia

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2018年 / 43卷 / 45期

关键词：

Hydrogen; Gas sensor; TiO2; Semiconductor; TITANIUM-DIOXIDE NANOMATERIALS; NI-DOPED TIO2; SENSING PROPERTIES; THIN-FILM; FAST-RESPONSE; IN-SITU; SEMICONDUCTING PROPERTIES; DEFECT CHEMISTRY; FACILE SYNTHESIS; CHARGE-TRANSFER;

D O I：

10.1016/j.ijhydene.2018.09.051

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：

Owing to its high energy density and environmentally friendly nature, hydrogen has already been regarded as the ultimate energy of the 21st century and gained significant attention from the worldwide researchers. Meanwhile, there are increasing concerns about its safe use, storage and transport as, despite being colorless and odorless, after certain concentration level it becomes flammable and explosive in air. Therefore, it is imperative to develop H-2 sensors for real-time monitoring of the H-2 leakage for an early warning. This paper firstly introduces the general hydrogen gas sensing mechanism of TiO2-based hydrogen sensors. Then we summarize and comment on the current hydrogen gas sensor based on various TiO2 materials, which include pristine TiO2, metal-assisted TiO2, organic-TiO2 composites, carbon-TiO2 composites, MOX-TiO2 composites and novel sensor concept with effective top-bottom electrode configuration. Finally, we briefly discuss the obstacles that TiO2-based H-2 sensors have to overcome in the progress of the systematically practical application, possible solutions, and future research perspectives that can be focused in this area. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：21114 / 21132

页数：19

共 126 条

[1] Electropolymerized Polypyrrole Nanowires for Hydrogen Gas Sensing [J].