Refinement and luminescent properties of BaWO4: xSm3+yellow phosphor by a low temperature molten salt method

2018 ◽  
Vol 84 ◽  
pp. 396-403 ◽  
Author(s):  
Yongsheng Shi ◽  
Jingjun Shi ◽  
Chen Dong
Keyword(s):  
Low Temperature ◽  
Molten Salt ◽  
Luminescent Properties ◽  
Molten Salt Method ◽  
Yellow Phosphor

Low Temperature Preparation of Mullite Whisker via Non-Hydrolytic Sol-Gel Process Combined with Molten Salt Method

2014 ◽  
Vol 936 ◽  
pp. 975-980 ◽  
Author(s):  
Kai Lin Fu ◽  
Wei Hui Jiang ◽  
Guo Feng ◽  
Jian Min Liu ◽  
Qian Wu ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Low Temperature ◽  
Molten Salt ◽  
Sol Gel ◽  
Growth Direction ◽  
Treatment Temperature ◽  
Molten Salt Method ◽  
Low Temperature Preparation ◽  
Sol Gel Process ◽  
Temperature Preparation

Mullite whisker was prepared at low temperature via non-hydrolytic sol-gel (NHSG) process combined with molten salt method. The influence of heat treatment temperature was studied on the morphology and the microstructure of whisker, and its growth mechanism was also described. The results show that the mullite whisker appears at the lowest temperature of 750 °C, and optimized mullite whisker can be prepared at 850 °C with the growth direction of [00, whose diameter is in the range of 170~300 nm with the aspect ratio of >30.

Study on micro-nanocrystalline structure control and performance of ZnWO4 photocatalysts

2019 ◽  
Vol 9 (5) ◽  
pp. 1141-1153 ◽  
Author(s):  
Wen Yan ◽  
Xiangchun Liu ◽  
Shan Hou ◽  
Xiao Wang
Keyword(s):  
Low Temperature ◽  
Molten Salt ◽  
Nanocrystalline Structure ◽  
Molten Salt Method ◽  
Structure Control ◽  
And Performance

ZnWO4 micro/nanocrystals with different sizes and well-developed crystals were synthesized by the molten salt method at low temperature.

Molten salt synthesis, growth mechanism, and photoluminescence of rod chlorapatite microcrystallites

CrystEngComm ◽  
2019 ◽  
Vol 21 (11) ◽  
pp. 1809-1817 ◽  
Author(s):  
Xiao Wen ◽  
Can He ◽  
Bogang Wu ◽  
Ximing Huang ◽  
Zhaohui Huang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Molten Salt ◽  
Growth Mechanism ◽  
Molten Salt Synthesis ◽  
Molten Salt Method ◽  
Air Atmosphere

The molten salt method was used to synthesize chlorapatite microcrystallites with regular shapes and uniform sizes at a relatively low temperature under an air atmosphere.

Low Temperature Synthesis of Mullite Whisker by Nonhydrolytic Sol-Gel Process Combined with Molten Salt Method

2012 ◽  
Vol 538-541 ◽  
pp. 2346-2349 ◽  
Author(s):  
Wei Hui Jiang ◽  
Qian Wu ◽  
Jian Min Liu ◽  
Qing Xia Zhu ◽  
Li Feng Miao
Keyword(s):  
Low Temperature ◽  
Molten Salt ◽  
Sol Gel ◽  
Crystal Phase ◽  
Molten Salt Method ◽  
Anhydrous Aluminum Chloride ◽  
Low Temperature Synthesis ◽  
Mixed Powder ◽  
Oxygen Donor ◽  
Sol Gel Process

Using tetraethyl orthosilicate and anhydrous aluminum chloride as precursors, ethyl ether as oxygen donor, LiF as mineralizer, and Na2SO4-NaCl as compound molten salt, mullite whisker was synthesized in the low temperature by nonhydrolytic sol-gel process combined with molten salt method. The phase transformation of mixed powder composed of mullite xerogel and molten salt during the heat treatment and the microstructure of mullite whisker corresponding to different temperature were characterized by means of DTA-TG, XRD SEM and TEM. The results show that mullite crystal phase can be formed via non-hydrolytic sol-gel process combined with the molten salt method at 750°C. The synthetic effect of mullite get better as the temperature increased to 850°C, while NaAlSiO4 crystal phase is also detected. Mullite whisker, with diameters ranging from 300~500 nm and lengths of 3~5μm, is prepared at the temperature of 850°C.

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