{"title":"通过添加硅增强钒基储氢合金的抗气毒性能","authors":"","doi":"10.1016/j.pnsc.2024.05.010","DOIUrl":null,"url":null,"abstract":"<div><p><span>Surface poisoning typically leads to the severe capacity degradation and poses a significant challenge to the durability of hydrogen storage materials. In this study, we report a novel approach to enhance the air-poisoning resistance of vanadium-based alloys by introducing of the air-tolerant hydride. Through the addition of 1 at% Si, a small amount of Ti</span><sub>5</sub>Si<sub>3</sub> is induced in V<sub>75</sub>Ti<sub>11</sub>Cr<sub>13</sub>Fe<sub>1</sub>, which turns into Ti<sub>5</sub>Si<sub>3</sub>H<sub>0.9</sub><span> during the hydrogen sorption cycles. Ti</span><sub>5</sub>Si<sub>3</sub>H<sub>0.9</sub> shows high resistance against air, which could serve as the hydrogen-entry window for the bulk. As a result, the (V<sub>75</sub>Ti<sub>11</sub>Cr<sub>13</sub>Fe<sub>1</sub>)<sub>99</sub>Si<sub>1</sub><span> alloy maintains approximately 85 % of the hydrogen storage capacity after 10 cycles in H</span><sub>2</sub><span> + 250 ppm air, in contrast to the near-complete loss of hydrogen sorption activity in Si-free alloy under the same condition.</span></p></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"34 4","pages":"Pages 648-653"},"PeriodicalIF":4.8000,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhanced air-poisoning resistance in vanadium-based hydrogen storage alloy by addition of Si\",\"authors\":\"\",\"doi\":\"10.1016/j.pnsc.2024.05.010\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p><span>Surface poisoning typically leads to the severe capacity degradation and poses a significant challenge to the durability of hydrogen storage materials. In this study, we report a novel approach to enhance the air-poisoning resistance of vanadium-based alloys by introducing of the air-tolerant hydride. Through the addition of 1 at% Si, a small amount of Ti</span><sub>5</sub>Si<sub>3</sub> is induced in V<sub>75</sub>Ti<sub>11</sub>Cr<sub>13</sub>Fe<sub>1</sub>, which turns into Ti<sub>5</sub>Si<sub>3</sub>H<sub>0.9</sub><span> during the hydrogen sorption cycles. Ti</span><sub>5</sub>Si<sub>3</sub>H<sub>0.9</sub> shows high resistance against air, which could serve as the hydrogen-entry window for the bulk. As a result, the (V<sub>75</sub>Ti<sub>11</sub>Cr<sub>13</sub>Fe<sub>1</sub>)<sub>99</sub>Si<sub>1</sub><span> alloy maintains approximately 85 % of the hydrogen storage capacity after 10 cycles in H</span><sub>2</sub><span> + 250 ppm air, in contrast to the near-complete loss of hydrogen sorption activity in Si-free alloy under the same condition.</span></p></div>\",\"PeriodicalId\":20742,\"journal\":{\"name\":\"Progress in Natural Science: Materials International\",\"volume\":\"34 4\",\"pages\":\"Pages 648-653\"},\"PeriodicalIF\":4.8000,\"publicationDate\":\"2024-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Progress in Natural Science: Materials International\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1002007124001217\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in Natural Science: Materials International","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1002007124001217","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Enhanced air-poisoning resistance in vanadium-based hydrogen storage alloy by addition of Si
Surface poisoning typically leads to the severe capacity degradation and poses a significant challenge to the durability of hydrogen storage materials. In this study, we report a novel approach to enhance the air-poisoning resistance of vanadium-based alloys by introducing of the air-tolerant hydride. Through the addition of 1 at% Si, a small amount of Ti5Si3 is induced in V75Ti11Cr13Fe1, which turns into Ti5Si3H0.9 during the hydrogen sorption cycles. Ti5Si3H0.9 shows high resistance against air, which could serve as the hydrogen-entry window for the bulk. As a result, the (V75Ti11Cr13Fe1)99Si1 alloy maintains approximately 85 % of the hydrogen storage capacity after 10 cycles in H2 + 250 ppm air, in contrast to the near-complete loss of hydrogen sorption activity in Si-free alloy under the same condition.
期刊介绍：
Progress in Natural Science: Materials International provides scientists and engineers throughout the world with a central vehicle for the exchange and dissemination of basic theoretical studies and applied research of advanced materials. The emphasis is placed on original research, both analytical and experimental, which is of permanent interest to engineers and scientists, covering all aspects of new materials and technologies, such as, energy and environmental materials; advanced structural materials; advanced transportation materials, functional and electronic materials; nano-scale and amorphous materials; health and biological materials; materials modeling and simulation; materials characterization; and so on. The latest research achievements and innovative papers in basic theoretical studies and applied research of material science will be carefully selected and promptly reported. Thus, the aim of this Journal is to serve the global materials science and technology community with the latest research findings.
As a service to readers, an international bibliography of recent publications in advanced materials is published bimonthly.
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