Preparation and characterization of nanosized nickel oxide

被引:62
|
作者
Wang, CB [1 ]
Gau, GY [1 ]
Gau, SJ [1 ]
Tang, CW [1 ]
Bi, JL [1 ]
机构
[1] Natl Def Univ, Chung Cheng Inst Technol, Dept Appl Chem, Taoyuan 33509, Taiwan
关键词
nickel oxide; nickel hydroxide; particle size;
D O I
10.1007/s10562-005-4899-x
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
Nanosized nickel oxide was synthesized by a simple liquid-phase process to obtain the hydroxide precursor and then calcined to form the oxide. The precursor and the nickel oxide were characterized by X-ray diffraction (XRD), infrared spectroscopy (IR), thermal analysis (TG) and temperature-programmed reduction (TPR). The results indicated that the particle size of nickel oxide was controlled by the calcined temperature (T-C). Mixed phases of nickel oxide and nickel hydroxide were present as the T-C was lower than 300 degrees C. Non-stoichiometric nickel oxide (NiOx, x = 1.2) was formed between 250 degrees C and 400 degrees C and a pure nickel oxide was formed as the T-C arrived 500 degrees C. The particle size of nickel oxide changed as the calcined temperature was controlled under 250 degrees C, 300 degrees C, 400 degrees C and 500 degrees C, the order was 5.6 nm, 6.5 nm, 11 nm and 17 nm, respectively.
引用
收藏
页码:241 / 247
页数:7
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