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Evaluation of Hydrogenation Kinetics and Life Cycle Assessment on Mg(2)NiH(x)–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...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8197870/ https://www.ncbi.nlm.nih.gov/pubmed/34073429 http://dx.doi.org/10.3390/ma14112848 |
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author | Shin, Hyo-Won Hwang, June-Hyeon Kim, Eun-A Hong, Tae-Whan |
author_facet | Shin, Hyo-Won Hwang, June-Hyeon Kim, Eun-A Hong, Tae-Whan |
author_sort | Shin, Hyo-Won |
collection | PubMed |
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(2)NiH(x)–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(2)NiH(x)–10 wt% CaO). In this study, the material environmental aspects of Mg(2)NiH(x)–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. |
format | Online Article Text |
id | pubmed-8197870 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-81978702021-06-14 Evaluation of Hydrogenation Kinetics and Life Cycle Assessment on Mg(2)NiH(x)–CaO Composites Shin, Hyo-Won Hwang, June-Hyeon Kim, Eun-A Hong, Tae-Whan Materials (Basel) Article 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(2)NiH(x)–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(2)NiH(x)–10 wt% CaO). In this study, the material environmental aspects of Mg(2)NiH(x)–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. MDPI 2021-05-26 /pmc/articles/PMC8197870/ /pubmed/34073429 http://dx.doi.org/10.3390/ma14112848 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Shin, Hyo-Won Hwang, June-Hyeon Kim, Eun-A Hong, Tae-Whan Evaluation of Hydrogenation Kinetics and Life Cycle Assessment on Mg(2)NiH(x)–CaO Composites |
title | Evaluation of Hydrogenation Kinetics and Life Cycle Assessment on Mg(2)NiH(x)–CaO Composites |
title_full | Evaluation of Hydrogenation Kinetics and Life Cycle Assessment on Mg(2)NiH(x)–CaO Composites |
title_fullStr | Evaluation of Hydrogenation Kinetics and Life Cycle Assessment on Mg(2)NiH(x)–CaO Composites |
title_full_unstemmed | Evaluation of Hydrogenation Kinetics and Life Cycle Assessment on Mg(2)NiH(x)–CaO Composites |
title_short | Evaluation of Hydrogenation Kinetics and Life Cycle Assessment on Mg(2)NiH(x)–CaO Composites |
title_sort | evaluation of hydrogenation kinetics and life cycle assessment on mg(2)nih(x)–cao composites |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8197870/ https://www.ncbi.nlm.nih.gov/pubmed/34073429 http://dx.doi.org/10.3390/ma14112848 |
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