Evaluation of Hydrogenation Kinetics and Life Cycle Assessment on Mg<sub>2</sub>NiH<sub>x</sub>–CaO Composites
Magnesium-based alloys are attractive as hydrogen storage materials due to their lightweight and high absorption, but their high operating temperatures and very slow kinetics are obstacles to practical applications. Therefore, the effect of CaO has improved the hydrogenation kinetics and slowed down...
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MDPI AG
2021-05-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/11/2848 |
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| author | Hyo-Won Shin June-Hyeon Hwang Eun-A Kim Tae-Whan Hong |
| author_facet | Hyo-Won Shin June-Hyeon Hwang Eun-A Kim Tae-Whan Hong |
| author_sort | Hyo-Won Shin |
| collection | DOAJ |
| description | Magnesium-based alloys are attractive as hydrogen storage materials due to their lightweight and high absorption, but their high operating temperatures and very slow kinetics are obstacles to practical applications. Therefore, the effect of CaO has improved the hydrogenation kinetics and slowed down the degradation. The Mg<sub>2</sub>NiH<sub>x</sub>–CaO composites were prepared by hydrogen-induced mechanical alloying (HIMA). Hydrogenation kinetics was performed by using an Automatic PCT Measuring System and evaluated in the temperature range of 423, 523, and 623 K. As a result of calculating the hydrogen absorption amounts through the hydrogenation kinetics curve, they were calculated as about 0.52 wt%, 1.21 wt%, and 1.59 wt% (Mg<sub>2</sub>NiH<sub>x</sub>–10 wt% CaO). In this study, the material environmental aspects of Mg<sub>2</sub>NiH<sub>x</sub>–CaO composites were investigated through life cycle assessment (LCA). LCA was performed analyzing the environmental impact characteristics of the manufacturing process by using Gabi software and the Eco-Indicator 99’ and Centrum voor Milieuweten schappen (CML 2001) methodology. As a result, the contents of global warming potential (GWP) and fossil fuels were found to have a higher impact than other impact categories. |
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| format | Article |
| id | doaj.art-97f3ff5c60de467b8d9247628ade4aeb |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T11:01:39Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
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| spelling | doaj.art-97f3ff5c60de467b8d9247628ade4aeb2023-11-21T21:28:04ZengMDPI AGMaterials1996-19442021-05-011411284810.3390/ma14112848Evaluation of Hydrogenation Kinetics and Life Cycle Assessment on Mg<sub>2</sub>NiH<sub>x</sub>–CaO CompositesHyo-Won Shin0June-Hyeon Hwang1Eun-A Kim2Tae-Whan Hong3Department of Materials Science and Engineering, College of Engineering, Korea National University of Transportation, Chungju 27469, KoreaDepartment of Materials Science and Engineering, College of Engineering, Korea National University of Transportation, Chungju 27469, KoreaDepartment of Materials Science and Engineering, College of Engineering, Korea National University of Transportation, Chungju 27469, KoreaDepartment of Materials Science and Engineering, College of Engineering, Korea National University of Transportation, Chungju 27469, KoreaMagnesium-based alloys are attractive as hydrogen storage materials due to their lightweight and high absorption, but their high operating temperatures and very slow kinetics are obstacles to practical applications. Therefore, the effect of CaO has improved the hydrogenation kinetics and slowed down the degradation. The Mg<sub>2</sub>NiH<sub>x</sub>–CaO composites were prepared by hydrogen-induced mechanical alloying (HIMA). Hydrogenation kinetics was performed by using an Automatic PCT Measuring System and evaluated in the temperature range of 423, 523, and 623 K. As a result of calculating the hydrogen absorption amounts through the hydrogenation kinetics curve, they were calculated as about 0.52 wt%, 1.21 wt%, and 1.59 wt% (Mg<sub>2</sub>NiH<sub>x</sub>–10 wt% CaO). In this study, the material environmental aspects of Mg<sub>2</sub>NiH<sub>x</sub>–CaO composites were investigated through life cycle assessment (LCA). LCA was performed analyzing the environmental impact characteristics of the manufacturing process by using Gabi software and the Eco-Indicator 99’ and Centrum voor Milieuweten schappen (CML 2001) methodology. As a result, the contents of global warming potential (GWP) and fossil fuels were found to have a higher impact than other impact categories.https://www.mdpi.com/1996-1944/14/11/2848hydrogen storagekineticsmaterial life cycle assessmentEco-Indicator 99’CML 2001 |
| spellingShingle | Hyo-Won Shin June-Hyeon Hwang Eun-A Kim Tae-Whan Hong Evaluation of Hydrogenation Kinetics and Life Cycle Assessment on Mg<sub>2</sub>NiH<sub>x</sub>–CaO Composites Materials hydrogen storage kinetics material life cycle assessment Eco-Indicator 99’ CML 2001 |
| title | Evaluation of Hydrogenation Kinetics and Life Cycle Assessment on Mg<sub>2</sub>NiH<sub>x</sub>–CaO Composites |
| title_full | Evaluation of Hydrogenation Kinetics and Life Cycle Assessment on Mg<sub>2</sub>NiH<sub>x</sub>–CaO Composites |
| title_fullStr | Evaluation of Hydrogenation Kinetics and Life Cycle Assessment on Mg<sub>2</sub>NiH<sub>x</sub>–CaO Composites |
| title_full_unstemmed | Evaluation of Hydrogenation Kinetics and Life Cycle Assessment on Mg<sub>2</sub>NiH<sub>x</sub>–CaO Composites |
| title_short | Evaluation of Hydrogenation Kinetics and Life Cycle Assessment on Mg<sub>2</sub>NiH<sub>x</sub>–CaO Composites |
| title_sort | evaluation of hydrogenation kinetics and life cycle assessment on mg sub 2 sub nih sub x sub cao composites |
| topic | hydrogen storage kinetics material life cycle assessment Eco-Indicator 99’ CML 2001 |
| url | https://www.mdpi.com/1996-1944/14/11/2848 |
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