{"title":"关于 CaxSiy 合金水解特性的研究","authors":"Yican Chu, Zhendong Yao, Min Liu, Wenqing Li, Jing Gu, Zhenguang Huang, Jiaxing Xie, Chao Li, Yongfu Cui, Yun Li, Meiqiang Fan","doi":"10.1007/s10853-024-10286-3","DOIUrl":null,"url":null,"abstract":"<div><p>The hydrolysis of silicon and its compounds to produce hydrogen for fuel cell remains a major problem. The main obstacle is the weak hydrolytic activity and slow kinetics of silicon. In this work, the alloying properties of Si and Ca to improve its hydrolytic activity, and studied the film breaking effect of different metals and halogen ions on its passivation layer. The results show that the hydrogen production of the alloy is still determined by its phase composition. Among the common metal (Ni, Bi, Sn) and halogen ions (F<sup>–</sup>, Cl<sup>–</sup>) catalyzed by hydrolysis, Ni and F<sup>–</sup> showed a good synergistic effect, resulting in a hydrogen yield of 269 mL/g at room temperature without alkali.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div><p>\n The effects of metal ions and halogens on the hydrolytic properties of Ca–Si alloy were investigated, and Ni<sup>2+</sup> and F<sup>—</sup> showed good synergistic effect.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 41","pages":"19642 - 19650"},"PeriodicalIF":3.5000,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A study on the hydrolytic properties of CaxSiy alloys\",\"authors\":\"Yican Chu, Zhendong Yao, Min Liu, Wenqing Li, Jing Gu, Zhenguang Huang, Jiaxing Xie, Chao Li, Yongfu Cui, Yun Li, Meiqiang Fan\",\"doi\":\"10.1007/s10853-024-10286-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The hydrolysis of silicon and its compounds to produce hydrogen for fuel cell remains a major problem. The main obstacle is the weak hydrolytic activity and slow kinetics of silicon. In this work, the alloying properties of Si and Ca to improve its hydrolytic activity, and studied the film breaking effect of different metals and halogen ions on its passivation layer. The results show that the hydrogen production of the alloy is still determined by its phase composition. Among the common metal (Ni, Bi, Sn) and halogen ions (F<sup>–</sup>, Cl<sup>–</sup>) catalyzed by hydrolysis, Ni and F<sup>–</sup> showed a good synergistic effect, resulting in a hydrogen yield of 269 mL/g at room temperature without alkali.</p><h3>Graphical Abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div><p>\\n The effects of metal ions and halogens on the hydrolytic properties of Ca–Si alloy were investigated, and Ni<sup>2+</sup> and F<sup>—</sup> showed good synergistic effect.</p></div>\",\"PeriodicalId\":645,\"journal\":{\"name\":\"Journal of Materials Science\",\"volume\":\"59 41\",\"pages\":\"19642 - 19650\"},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2024-10-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Science\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10853-024-10286-3\",\"RegionNum\":3,\"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":"Journal of Materials Science","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s10853-024-10286-3","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
A study on the hydrolytic properties of CaxSiy alloys
The hydrolysis of silicon and its compounds to produce hydrogen for fuel cell remains a major problem. The main obstacle is the weak hydrolytic activity and slow kinetics of silicon. In this work, the alloying properties of Si and Ca to improve its hydrolytic activity, and studied the film breaking effect of different metals and halogen ions on its passivation layer. The results show that the hydrogen production of the alloy is still determined by its phase composition. Among the common metal (Ni, Bi, Sn) and halogen ions (F–, Cl–) catalyzed by hydrolysis, Ni and F– showed a good synergistic effect, resulting in a hydrogen yield of 269 mL/g at room temperature without alkali.
Graphical Abstract
The effects of metal ions and halogens on the hydrolytic properties of Ca–Si alloy were investigated, and Ni2+ and F— showed good synergistic effect.
期刊介绍：
The Journal of Materials Science publishes reviews, full-length papers, and short Communications recording original research results on, or techniques for studying the relationship between structure, properties, and uses of materials. The subjects are seen from international and interdisciplinary perspectives covering areas including metals, ceramics, glasses, polymers, electrical materials, composite materials, fibers, nanostructured materials, nanocomposites, and biological and biomedical materials. The Journal of Materials Science is now firmly established as the leading source of primary communication for scientists investigating the structure and properties of all engineering materials.
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