Hydrolysis behavior and mechanistic insights of CaMg2InX (X = 0.1, 0.3, 0.5, 0.7) ternary alloy for sustainable hydrogen production
The hydrolysis behavior of CaMg2In0.1, CaMg2In0.3, CaMg2In0.5, and CaMg2In0.7 ternary alloys in an MgCl2 solution following casting and hydrogenation were investigated. The hydrolysis mechanism of these alloys is elucidated through an analysis of microstructure, phase composition, and kinetics befor...
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KeAi Communications Co., Ltd.
2025-04-01
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| Series: | Journal of Magnesium and Alloys |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213956724000823 |
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| author | Hui Yong Xianliu Xu Shuo Yu Lin Zhang Yanhao Wang Baosheng Liu Jifan Hu Yanghuan Zhang |
| author_facet | Hui Yong Xianliu Xu Shuo Yu Lin Zhang Yanhao Wang Baosheng Liu Jifan Hu Yanghuan Zhang |
| author_sort | Hui Yong |
| collection | DOAJ |
| description | The hydrolysis behavior of CaMg2In0.1, CaMg2In0.3, CaMg2In0.5, and CaMg2In0.7 ternary alloys in an MgCl2 solution following casting and hydrogenation were investigated. The hydrolysis mechanism of these alloys is elucidated through an analysis of microstructure, phase composition, and kinetics before and after hydrolysis. The nucleation-growth Avrami model is employed to accurately model the hydrolysis kinetics, revealing improved hydrolysis yields and reaction rates following hydrogenation. Notably, CaMg2In0.1 has demonstrated exceptional hydrolysis characteristics, exhibiting a yield of 1140 mL/g, an initial hydrolysis rate of 113 mL/g·s, and an activation energy of 24.3 ± 1.7 kJ·mol−1. The yield of H-CaMg2In0.1 further escalates to 1800 mL/g with a rate of 221 mL/g·s, attributed to the formation of Ca4Mg3H14 and In phases subsequent to the hydrogenation of In2Ca and Mg3In phases in the alloy. These newly formed phases act as catalysts and actively participate in the hydrolysis process, providing active sites for hydrogen production, thus enhancing hydrolysis yields and kinetics. It is observed that with increasing In content, the order of hydrolysis performance of the alloy is as follows: CaMg2In0.1 > CaMg2In0.3 > CaMg2In0.5 > CaMg2In0.7, consistent with the trend after hydrogenation. These findings indicate that the addition of In significantly enhances the hydrolysis performance of CaMg2 alloys, offering a promising strategy for preparing magnesium-based alloys with high yields and favorable kinetic properties. |
| format | Article |
| id | doaj-art-ae0fae4f0d2645b1a36a8e513f7a512c |
| institution | Kabale University |
| issn | 2213-9567 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Magnesium and Alloys |
| spelling | doaj-art-ae0fae4f0d2645b1a36a8e513f7a512c2025-08-20T03:52:07ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672025-04-011341829184210.1016/j.jma.2024.02.009Hydrolysis behavior and mechanistic insights of CaMg2InX (X = 0.1, 0.3, 0.5, 0.7) ternary alloy for sustainable hydrogen productionHui Yong0Xianliu Xu1Shuo Yu2Lin Zhang3Yanhao Wang4Baosheng Liu5Jifan Hu6Yanghuan Zhang7College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, Shanxi, 030024, China; Corresponding author at: Taiyuan University of Science and Technology, Taiyuan, 030024, China.College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, Shanxi, 030024, ChinaCollege of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, Shanxi, 030024, ChinaCollege of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, Shanxi, 030024, ChinaChina Institute of Ocean Engineering (Tsing Tao), Qingdao, 266000, ChinaCollege of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, Shanxi, 030024, ChinaCollege of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, Shanxi, 030024, China; Corresponding author at: Taiyuan University of Science and Technology, Taiyuan, 030024, China.Key Laboratory of IntegratXd Exploitation of Baiyun Obo Multi-Metal Resources, Inner Mongolia University of Science and Technology, Baotou 014010, China; Corresponding author at: Inner Mongolia University of Science and Technology, Baotou, 014010, China.The hydrolysis behavior of CaMg2In0.1, CaMg2In0.3, CaMg2In0.5, and CaMg2In0.7 ternary alloys in an MgCl2 solution following casting and hydrogenation were investigated. The hydrolysis mechanism of these alloys is elucidated through an analysis of microstructure, phase composition, and kinetics before and after hydrolysis. The nucleation-growth Avrami model is employed to accurately model the hydrolysis kinetics, revealing improved hydrolysis yields and reaction rates following hydrogenation. Notably, CaMg2In0.1 has demonstrated exceptional hydrolysis characteristics, exhibiting a yield of 1140 mL/g, an initial hydrolysis rate of 113 mL/g·s, and an activation energy of 24.3 ± 1.7 kJ·mol−1. The yield of H-CaMg2In0.1 further escalates to 1800 mL/g with a rate of 221 mL/g·s, attributed to the formation of Ca4Mg3H14 and In phases subsequent to the hydrogenation of In2Ca and Mg3In phases in the alloy. These newly formed phases act as catalysts and actively participate in the hydrolysis process, providing active sites for hydrogen production, thus enhancing hydrolysis yields and kinetics. It is observed that with increasing In content, the order of hydrolysis performance of the alloy is as follows: CaMg2In0.1 > CaMg2In0.3 > CaMg2In0.5 > CaMg2In0.7, consistent with the trend after hydrogenation. These findings indicate that the addition of In significantly enhances the hydrolysis performance of CaMg2 alloys, offering a promising strategy for preparing magnesium-based alloys with high yields and favorable kinetic properties.http://www.sciencedirect.com/science/article/pii/S2213956724000823HydrolysisHydrogen storageKineticsPrecious metal |
| spellingShingle | Hui Yong Xianliu Xu Shuo Yu Lin Zhang Yanhao Wang Baosheng Liu Jifan Hu Yanghuan Zhang Hydrolysis behavior and mechanistic insights of CaMg2InX (X = 0.1, 0.3, 0.5, 0.7) ternary alloy for sustainable hydrogen production Journal of Magnesium and Alloys Hydrolysis Hydrogen storage Kinetics Precious metal |
| title | Hydrolysis behavior and mechanistic insights of CaMg2InX (X = 0.1, 0.3, 0.5, 0.7) ternary alloy for sustainable hydrogen production |
| title_full | Hydrolysis behavior and mechanistic insights of CaMg2InX (X = 0.1, 0.3, 0.5, 0.7) ternary alloy for sustainable hydrogen production |
| title_fullStr | Hydrolysis behavior and mechanistic insights of CaMg2InX (X = 0.1, 0.3, 0.5, 0.7) ternary alloy for sustainable hydrogen production |
| title_full_unstemmed | Hydrolysis behavior and mechanistic insights of CaMg2InX (X = 0.1, 0.3, 0.5, 0.7) ternary alloy for sustainable hydrogen production |
| title_short | Hydrolysis behavior and mechanistic insights of CaMg2InX (X = 0.1, 0.3, 0.5, 0.7) ternary alloy for sustainable hydrogen production |
| title_sort | hydrolysis behavior and mechanistic insights of camg2inx x 0 1 0 3 0 5 0 7 ternary alloy for sustainable hydrogen production |
| topic | Hydrolysis Hydrogen storage Kinetics Precious metal |
| url | http://www.sciencedirect.com/science/article/pii/S2213956724000823 |
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