A room temperature nitric oxide sensor actualized from Ru-doped SnO2 nanowires

被引:187
作者
Ramgir, NS [1 ]
Mulla, IS [1 ]
Vijayamohanan, KP [1 ]
机构
[1] Natl Chem Lab, Phys & Mat Chem Div, Pune 411008, Maharashtra, India
关键词
nanowires; tin oxide ruthenium oxide; NO2; LPG;
D O I
10.1016/j.snb.2004.12.073
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
We report synthesis of the novel Ru-doped SnO2 nanowires and their distinctive response towards NO., and liquefied petroleum gas (LPG) in air. These nanowires have been prepared by a simple approach of evaporation of metal oxide at elevated temperature, The sensor exhibits three order of magnitude changes in the conductivity on exposure to NO2 in air at room temperature, Furthermore. Ru being one of the excellent sensitizers towards LPG these wires also exhibits sensitivity at 250 degrees C. The amount of Ru plays a crucial role in modulating the sensitivity and lowering the operating temperature. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:708 / 715
页数:8
相关论文
共 37 条
[1]  
[Anonymous], 1999, ACC CHEM RES, P32
[2]   Grain size effects on H-2 gas sensitivity of thick film resistor using SnO2 nanoparticles [J].
Ansari, SG ;
Boroojerdian, P ;
Sainkar, SR ;
Karekar, RN ;
Aiyer, RC ;
Kulkarni, SK .
THIN SOLID FILMS, 1997, 295 (1-2) :271-276
[3]   Luttinger-liquid behaviour in carbon nanotubes [J].
Bockrath, M ;
Cobden, DH ;
Lu, J ;
Rinzler, AG ;
Smalley, RE ;
Balents, L ;
McEuen, PL .
NATURE, 1999, 397 (6720) :598-601
[4]   Doping and electrical transport in silicon nanowires [J].
Cui, Y ;
Duan, XF ;
Hu, JT ;
Lieber, CM .
JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (22) :5213-5216
[5]   Tin oxide nanowires, nanoribbons, and nanotubes [J].
Dai, ZR ;
Gole, JL ;
Stout, JD ;
Wang, ZL .
JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (06) :1274-1279
[6]   Growth and structure evolution of novel tin oxide diskettes [J].
Dai, ZR ;
Pan, ZW ;
Wang, ZL .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (29) :8673-8680
[7]   Ultra-long single crystalline nanoribbons of tin oxide [J].
Dai, ZR ;
Pan, ZW ;
Wang, ZL .
SOLID STATE COMMUNICATIONS, 2001, 118 (07) :351-354
[8]   Competition between initial- and final-state effects in valence- and core-level x-ray photoemission of Sb-doped SnO2 [J].
Egdell, RG ;
Rebane, J ;
Walker, TJ ;
Law, DSL .
PHYSICAL REVIEW B, 1999, 59 (03) :1792-1799
[9]  
EGGER R, 1997, PHYS REV LETT, V79, P5086
[10]   SNO2 SENSORS - CURRENT STATUS AND FUTURE-PROSPECTS [J].
GOPEL, W ;
SCHIERBAUM, KD .
SENSORS AND ACTUATORS B-CHEMICAL, 1995, 26 (1-3) :1-12