Electrodeposition of aluminum on needle cathode using AlCl<sub>3</sub>/urea molten salts at low-temperature and its application to hydrogen generation

Samikannu Prabu; Hong-wen Wang

doi:10.1016/j.cjche.2019.11.002

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Electrodeposition of aluminum on needle cathode using AlCl₃/urea molten salts at low-temperature and its application to hydrogen generation

Energy, Resources and Environmental Technology | Updated：2026-01-06

- Electrodeposition of aluminum on needle cathode using AlCl₃/urea molten salts at low-temperature and its application to hydrogen generation
- Chinese Journal of Chemical Engineering Vol. 28, Issue 3, Pages: 854-863(2020)
- Affiliations：
  
  Department of Chemistry, Chung-Yuan Christian University, Zhongli,Taiwan,China,320
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2019.11.002
  CLC：
- Published：2020
- Accepted：
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/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：

/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.

摘要

Abstract

The electrodeposition of aluminum (Al) was studied using two electrolyte solutions

such as anhydrous AlCl

-urea and hydrated AlCl

·6H

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

with 100% yield. The electrodeposited aluminum metal can be used as an excellent energy carrier.

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Related Author

Qingjun Zhang

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Related Institution

State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University

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Electrodeposition of aluminum on needle cathode using AlCl3/urea molten salts at low-temperature and its application to hydrogen generation

DOI：10.1016/j.cjche.2019.11.002

摘要

Abstract

关键词

Keywords

references

Electrodeposition of aluminum on needle cathode using AlCl₃/urea molten salts at low-temperature and its application to hydrogen generation