Preparation of Al-Mg Alloy Electrodes by Using Powder Metallurgy and Their Application for Hydrogen Production
The choice of an electrode is the most critical parameter for water electrolysis. In this study, powder metallurgy is used to prepare aluminum-magnesium (Al-Mg) alloy electrodes. In addition to pure Mg and Al electrodes, five Al-Mg alloy electrodes composed of Al-Mg (10 wt%), Al-Mg (25 wt%), Al-Mg (...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2014/594984 |
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| author | Wen-Nong Hsu Teng-Shih Shih Ming-Yuan Lin |
| author_facet | Wen-Nong Hsu Teng-Shih Shih Ming-Yuan Lin |
| author_sort | Wen-Nong Hsu |
| collection | DOAJ |
| description | The choice of an electrode is the most critical parameter for water electrolysis. In this study, powder metallurgy is used to prepare aluminum-magnesium (Al-Mg) alloy electrodes. In addition to pure Mg and Al electrodes, five Al-Mg alloy electrodes composed of Al-Mg (10 wt%), Al-Mg (25 wt%), Al-Mg (50 wt%), and Al-Mg (75 wt%) were prepared. In water electrolysis experiments, the pure Al electrode exhibited optimal electrolytic efficiency. However, the Al-Mg (25 wt%) alloy was the most efficient when the anticorrosion effect and materials costs were considered. In this study, an ultrasonic field was applied to the electrolysis cell to improve its efficiency. The results revealed that the current increased by approximately 23.1% when placed in a 30 wt% KOH solution under the ultrasonic field. Electrochemical polarization impedance spectroscopy (EIS) was employed to evaluate the effect of the ultrasonic field on the reduction of polarization resistance. The results showed that the concentration impedance in the 30 wt% KOH electrolyte decreased markedly by 44%–51% Ω. |
| format | Article |
| id | doaj-art-e6fcad1b0ef2499bb8a90ddc6ca3000e |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-e6fcad1b0ef2499bb8a90ddc6ca3000e2025-02-03T06:08:20ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422014-01-01201410.1155/2014/594984594984Preparation of Al-Mg Alloy Electrodes by Using Powder Metallurgy and Their Application for Hydrogen ProductionWen-Nong Hsu0Teng-Shih Shih1Ming-Yuan Lin2Department of Mechanical Engineering, National Central University, Chung-Li 32054, TaiwanDepartment of Mechanical Engineering, National Central University, Chung-Li 32054, TaiwanDepartment of Mechanical and Vehicle Engineering, Army Academy, Chung-Li 32092, TaiwanThe choice of an electrode is the most critical parameter for water electrolysis. In this study, powder metallurgy is used to prepare aluminum-magnesium (Al-Mg) alloy electrodes. In addition to pure Mg and Al electrodes, five Al-Mg alloy electrodes composed of Al-Mg (10 wt%), Al-Mg (25 wt%), Al-Mg (50 wt%), and Al-Mg (75 wt%) were prepared. In water electrolysis experiments, the pure Al electrode exhibited optimal electrolytic efficiency. However, the Al-Mg (25 wt%) alloy was the most efficient when the anticorrosion effect and materials costs were considered. In this study, an ultrasonic field was applied to the electrolysis cell to improve its efficiency. The results revealed that the current increased by approximately 23.1% when placed in a 30 wt% KOH solution under the ultrasonic field. Electrochemical polarization impedance spectroscopy (EIS) was employed to evaluate the effect of the ultrasonic field on the reduction of polarization resistance. The results showed that the concentration impedance in the 30 wt% KOH electrolyte decreased markedly by 44%–51% Ω.http://dx.doi.org/10.1155/2014/594984 |
| spellingShingle | Wen-Nong Hsu Teng-Shih Shih Ming-Yuan Lin Preparation of Al-Mg Alloy Electrodes by Using Powder Metallurgy and Their Application for Hydrogen Production Advances in Materials Science and Engineering |
| title | Preparation of Al-Mg Alloy Electrodes by Using Powder Metallurgy and Their Application for Hydrogen Production |
| title_full | Preparation of Al-Mg Alloy Electrodes by Using Powder Metallurgy and Their Application for Hydrogen Production |
| title_fullStr | Preparation of Al-Mg Alloy Electrodes by Using Powder Metallurgy and Their Application for Hydrogen Production |
| title_full_unstemmed | Preparation of Al-Mg Alloy Electrodes by Using Powder Metallurgy and Their Application for Hydrogen Production |
| title_short | Preparation of Al-Mg Alloy Electrodes by Using Powder Metallurgy and Their Application for Hydrogen Production |
| title_sort | preparation of al mg alloy electrodes by using powder metallurgy and their application for hydrogen production |
| url | http://dx.doi.org/10.1155/2014/594984 |
| work_keys_str_mv | AT wennonghsu preparationofalmgalloyelectrodesbyusingpowdermetallurgyandtheirapplicationforhydrogenproduction AT tengshihshih preparationofalmgalloyelectrodesbyusingpowdermetallurgyandtheirapplicationforhydrogenproduction AT mingyuanlin preparationofalmgalloyelectrodesbyusingpowdermetallurgyandtheirapplicationforhydrogenproduction |