Samikannu Prabu, Hong-wen Wang. Electrodeposition of aluminum on needle cathode using AlCl3/urea molten salts at low-temperature and its application to hydrogen generation[J]. 中国化学工程学报(英文版), 2020,28(3):854-863. DOI: 10.1016/j.cjche.2019.11.002.
/urea molten salts at low-temperature and its application to hydrogen generation[J]. 中国化学工程学报, 2020, 28(3): 854-863.
Samikannu Prabu, Hong-wen Wang. Electrodeposition of aluminum on needle cathode using AlCl3/urea molten salts at low-temperature and its application to hydrogen generation[J]. 中国化学工程学报(英文版), 2020,28(3):854-863. DOI: 10.1016/j.cjche.2019.11.002.DOI:
/urea molten salts at low-temperature and its application to hydrogen generation[J]. 中国化学工程学报, 2020, 28(3): 854-863.DOI: 10.1016/j.cjche.2019.11.002.
Electrodeposition of aluminum on needle cathode using AlCl3/urea molten salts at low-temperature and its application to hydrogen generation
The electrodeposition of aluminum (Al) was studied using two electrolyte solutions
such as anhydrous AlCl
3
-urea and hydrated AlCl
3
·6H
2
O-urea. A systematic examination using cell voltages 1.0-2.0 V was carried out at temperatures ((50-100)±2) ℃. A needle-shaped cathode was employed for the deposition of aluminum. A dendrite and particulate microstructure of Al were observed on the needle-shaped cathode. An improved condition for the manufacturing of small sizes and high purity of aluminum deposits was obtained. Pure Al with a current efficiency (yield) of 84%-99% was obtained from those of non-aqueous electrolytes and only of 8.6%-9.3% from those of hydrated electrolytes. The electrical conductivities of electrolytes remained considerable at ((50-100)±2) ℃. The improved aluminum powders were used for the reaction with water. The aluminum reacts with water at room temperature
producing pure H
2
with 100% yield. The electrodeposited aluminum metal can be used as an excellent energy carrier.
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相关作者
Qingjun Zhang
Youguang Ma
Xigang Yuan
Aiwu Zeng
相关机构
State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University
Chemical Engineering Research Center, Collaborative Innovative Center of Chemical Science and Engineering (Tianjin)