Microstructure and Gas-Sensing Properties of Nanocrystalline NiFe2O4 Prepared by Spray Pyrolysis

被引：11
|
作者：
Kazin, A. P. [1 ]
Rumyantseva, M. N. [1 ]
Prusakov, V. E. [2 ]
Suzdalev, I. P. [2 ]
Maksimov, Yu V. [2 ]
Imshennik, V. K. [2 ]
Novochikhin, S. V. [2 ]
Gaskov, A. M. [1 ]
机构：
[1] Moscow MV Lomonosov State Univ, Moscow 119991, Russia
[2] Russian Acad Sci, Semenov Inst Chem Phys, Moscow 119991, Russia
来源：
INORGANIC MATERIALS | 2010年 / 46卷 / 11期
基金：
俄罗斯基础研究基金会;
关键词：
NICKEL FERRITE; MOSSBAUER;
D O I：
10.1134/S0020168510110178
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nanocrystalline nickel ferrite with a crystallite size from 3 to 40 nm has been prepared by spray pyrolysis. The Fe-57 Mossbauer spectrum of NiFe2O4 samples has been found to vary systematically with crystallite size. The sensing response of the nanocrystalline nickel ferrite to 50 ppm NH3 has been studied using in situ conductance measurements. NiFe2O4 offers a strong sensing response to ammonia at the level of its maximum concentration limit. The optimum nickel ferrite crystallite size and temperature for ammonia detection are determined.
引用
收藏
页码：1254 / 1259
页数：6
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