Preparation and Thermal Stability of Ultrafine Nickel Powders Containing hcp-Ni Nanocrystallites Using Liquid-Phase Reduction Method

2016 ◽  
Vol 47 (5) ◽  
pp. 2793-2798 ◽  
Author(s):  
Zhimei Xia ◽  
Shengming Jin ◽  
Kun Liu
Keyword(s):  
Thermal Stability ◽  
Liquid Phase ◽  
Reduction Method ◽  
Phase Reduction ◽  
Nickel Powders ◽  
Ultrafine Nickel ◽  
Thermal Stability Of

Synthesis of Fine Nickel Powders by Solvothermal Method

2007 ◽  
Vol 334-335 ◽  
pp. 1145-1148 ◽  
Author(s):  
Yin Ye ◽  
Fang Li Yuan ◽  
Li Min Zhou ◽  
Hai Tao Huang
Keyword(s):  
Thermal Stability ◽  
Chemical Reduction ◽  
Spherical Shape ◽  
Butyl Alcohol ◽  
Nickel Powders ◽  
Good Crystallinity ◽  
Average Size ◽  
Solvothermal Conditions ◽  
Thermal Stability Of ◽  
Fine Nickel

Fine nickel powders have been prepared by chemical reduction between nickel acetate and alcohol under solvothermal conditions. The effect of adding surfactant and varying solvent on the particle size of the as-synthesized nickel powders have been explored. SEM, XRD and TG were employed to characterize the size, morphology, crystalline structure and the thermal stability of the as-synthesized nickel powders. It is revealed that the FCC-structured nickel powders are of uniform spherical shape with good crystallinity and thermal stability. Typically, nickel powders with an average size of 300 nm were obtained at 200°C for 8 h using 0.04 mol/L solution of Ni(CH3COO)2·4H2O in n-butyl alcohol under solvothermal conditions.

scholarly journals Gram-scale synthesis of ultra-fine Cu2O for highly efficient ozone decomposition

RSC Advances ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 5212-5219 ◽  
Author(s):  
Shuyan Gong ◽  
Anqi Wang ◽  
Jilai Zhang ◽  
Jian Guan ◽  
Ning Han ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Room Temperature ◽  
Reduction Method ◽  
Ozone Decomposition ◽  
Highly Efficient ◽  
Phase Reduction

Dozens of grams of ultra-fine Cu2O with efficient ozone decomposition was prepared by a facile liquid phase reduction method at room temperature.

An Ni–P/C electro-catalyst with improved activity for the carbohydrazide oxidation reaction

RSC Advances ◽  
2016 ◽  
Vol 6 (94) ◽  
pp. 91956-91959 ◽  
Author(s):  
Xinyue Cao ◽  
Haining Wang ◽  
Shanfu Lu ◽  
Sian Chen ◽  
Yan Xiang
Keyword(s):  
Catalytic Activity ◽  
Liquid Phase ◽  
Oxidation Reaction ◽  
Reduction Method ◽  
Significant Enhancement ◽  
Phase Reduction ◽  
Electro Catalytic Activity

Ni–P/C NPs were prepared through a two-step liquid phase reduction method, which exhibited a significant enhancement for the electro-catalytic activity towards the carbohydrazide oxidation reaction compared with Ni/C NPs.

The influence of different Ni contents on the radar absorbing properties of FeNi nano powders

RSC Advances ◽  
2016 ◽  
Vol 6 (20) ◽  
pp. 16413-16418 ◽  
Author(s):  
Hui Zhao ◽  
Zhenghou Zhu ◽  
Chao Xiong ◽  
Xialian Zheng ◽  
Qianying Lin
Keyword(s):  
Liquid Phase ◽  
Reduction Method ◽  
Phase Reduction ◽  
Absorbing Property ◽  
Better Than

Absorbing property of Fe20Ni80 nanopowder was better than that of other Fe100−xNix powder fabricated by liquid phase reduction method. Absorbing band could be effectively broadened and absorbing property improved through optimal structural designs.

Effects of the Ratio of Surface Protective Agent on the Preparation of Nano-Silver

2012 ◽  
Vol 624 ◽  
pp. 80-83
Author(s):  
Feng Rui Zhai ◽  
Yi Ming Liu ◽  
Jian Ping Yuan ◽  
Hong Wei Zhang ◽  
Zhong Zhou Yi
Keyword(s):  
Liquid Phase ◽  
Reduction Method ◽  
Ph Value ◽  
Silver Powder ◽  
High Surface ◽  
Solution Viscosity ◽  
Protective Agent ◽  
Nano Silver ◽  
Phase Reduction ◽  
The Impact

It has many advantages with liquid phase reduction method to prepare the nano-silver, such as experimental conditions are simple, low cost, energy-saving, etc.. At the same time, the nano silver powder prepared by this method has high surface activity, catalytic property and wide usage. In this paper, nano-silver powder was prepared by changing the amount of protective agents with chemical liquid phase reduction method. This paper focuses on the impact of the amount of protective agent on the nano-silver. In addition, we also analyzed the reaction temperature, PH value of solution, viscosity and electrical conductivity on the preparation of nano-silver. Finally, test results from the TEM shows that the nano-silver was prepared with smaller size, uniform size and good dispersion.

Study on Preparation Technology of Nickel Powder with Liquid Phase Reduction Method

2015 ◽  
Vol 44 (1) ◽  
pp. 36-40 ◽  
Author(s):  
Li Lei ◽  
Du Jinghong ◽  
Gan Guoyou ◽  
Yan Jikang ◽  
Zhang Jiamin ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Nickel Powder ◽  
Reduction Method ◽  
Preparation Technology ◽  
Phase Reduction

Thermal Stability of FeS2 Cathode Material in “Thermal” Batteries: Effect of Dissolved Oxides in Molten Salt Electrolytes

2008 ◽  
Vol 63 (9) ◽  
pp. 596-602 ◽  
Author(s):  
Patrick J. Masset
Keyword(s):  
Thermal Stability ◽  
Liquid Phase ◽  
Cathode Material ◽  
Molten Salt ◽  
Molten Salts ◽  
Decomposition Temperature ◽  
Lithium Oxide ◽  
Thermal Batteries ◽  
Molten Salt Electrolytes ◽  
Thermal Stability Of

The thermal stability of FeS2 cathode material for thermal batteries is investigated in the LiCl-KCl eutectic containing up to 10 wt% Li2O (used as anti-peak). The results show that the decomposition of pyrite shifts to higher temperatures in the presence of molten salts as the S2 gas is repressed by the liquid phase. For high lithium oxide contents the decomposition temperature of pyrite decreases by 100 °C. In addition Li2FeS2 as reaction product is evidenced whereas Li3Fe2S4 is expected from literature data.

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