Nanoporous Nb2O5 hydrogen gas sensor

被引：132

作者：

Rani, Rozina Abdul ^{[1
]}

Zoolfakar, Ahmad Sabirin ^{[1
,3
]}

Ou, Jian Zhen ^{[1
]}

Field, Matthew R. ^{[2
]}

Austin, Michael ^{[1
]}

Kalantar-zadeh, Kourosh ^{[1
]}

机构：

[1] RMIT Univ, Sch Elect & Comp Engn, Melbourne, Vic 3001, Australia

[2] RMIT Univ, Sch Appl Sci, Melbourne, Vic 3001, Australia

[3] Univ Teknol MARA, Fac Elect Engn, Shah Alam 40450, Malaysia

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2013年 / 176卷

关键词：

Niobium oxide (Nb2O5); Anodization; Nanoporous; Gas sensor; Hydrogen (H-2); SENSITIZED SOLAR-CELLS; THIN-FILMS; OXIDE; CO; OXYGEN;

D O I：

10.1016/j.snb.2012.09.028

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This work presents the development of gas sensors based on nanoporous niobium oxide (Nb2O5) films for hydrogen gas sensing. Nanoporous Nb2O5 films were successfully synthesized by the anodization of niobium foil in fluoride-organic solvent containing a small percentage of water at 50 °C. These conditions helped to obtain nanovein-like networks with pore diameters of 30-50 nm. After annealing at 440 °C an orthorhombic phase of Nb2O5 was obtained. Contacts of the sensors were then established using platinum (Pt) that also acted as catalytic layers. The gas sensing properties of these nanoporous contacts were investigated for hydrogen gas sensing at different film thicknesses and temperatures. © 2012 Elsevier B.V. All rights reserved.

引用

页码：149 / 156

页数：8

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