Studies on the sensing behaviour of nanocrystalline CuGa2O4 towards hydrogen, liquefied petroleum gas and ammonia

被引：27

作者：

Biswas, Soumya Kanti ^{[1
]}

Sarkar, Arpita ^{[1
]}

Pathak, Amita ^{[1
]}

Pramanik, Panchanan ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem, Kharagpur 721302, W Bengal, India

来源：

TALANTA | 2010年 / 81卷 / 4-5期

关键词：

Chemical synthesis; Nanocrystalline CuGa2O4; Gas sensor; LPG; H-2; NH3; SEMICONDUCTOR; NANOPARTICLES; FENBO4;

D O I：

10.1016/j.talanta.2010.03.010

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In the present article, the gas sensing behaviour of nanocrystalline CuGa2O4 towards H-2, liquefied petroleum gas (LPG) and NH3 has been reported for the first time Nanocrystalline powders of CuGa2O4 having average particle sizes in the range of 30-60 nm have been prepared through thermal decomposition of an aqueous precursor solution comprising copper nitrate, gallium nitrate and methanol amine (TEA), followed by calcination at 750 degrees C for 2 h The synthesized nanocrystalline CuGa2O4 powders have been characterised through X-ray diffraction (XRD), transmission electron microscopy (TEM). field-emission scanning electron microscopy (FESEM) study, energy dispersive X-ray (EDX) analysis and BET (Brunauer-Emmett-Teller) surface area measurement. The synthesized CuGa2O4 having spinet structure with specific sur face area of 40 m(2)/g exhibits maximum sensitivity towards H-2, LPG, and NH3 at 350 degrees C (C) 2010 Elsevier B V. All rights reserved.

引用

页码：1607 / 1612

页数：6

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