Yingyan Zhao, Yunfeng Zhu, Rui Shi, Jiguang Zhang, Yana Liu, Jun Wang, Liquan Li
{"title":"用于可逆储氢的镁镍氢化物单晶纳米粒子","authors":"Yingyan Zhao, Yunfeng Zhu, Rui Shi, Jiguang Zhang, Yana Liu, Jun Wang, Liquan Li","doi":"10.1016/j.matre.2023.100246","DOIUrl":null,"url":null,"abstract":"<div><p>Although Mg-based hydrides are extensively considered as a prospective material for solid-state hydrogen storage and clean energy carriers, their high operating temperature and slow kinetics are the main challenges for practical application. Here, a Mg–Ni based hydride, Mg<sub>2</sub>NiH<sub>4</sub> nanoparticles (∼100 nm), with dual modification strategies of nanosizing and alloying is successfully prepared via a gas-solid preparation process. It is demonstrated that Mg<sub>2</sub>NiH<sub>4</sub> nanoparticles form a unique chain-like structure by oriented stacking and exhibit impressive hydrogen storage performance: it starts to release H<sub>2</sub> at ∼170 °C and completes below 230 °C with a saturated capacity of 3.32 wt% and desorbs 3.14 wt% H<sub>2</sub> within 1800 s at 200 °C. The systematic characterizations of Mg<sub>2</sub>NiH<sub>4</sub> nanoparticles at different states reveal the dehydrogenation behavior and demonstrate the excellent structural and hydrogen storage stabilities during the de/hydrogenated process. This research is believed to provide new insights for optimizing the kinetic performance of metal hydrides and novel perspectives for designing highly active and stable hydrogen storage alloys.</p></div>","PeriodicalId":61638,"journal":{"name":"材料导报:能源(英文)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666935823001131/pdfft?md5=bb54c4ba0870a60c1e86c0b8bc0ab9df&pid=1-s2.0-S2666935823001131-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Magnesium nickel hydride monocrystalline nanoparticles for reversible hydrogen storage\",\"authors\":\"Yingyan Zhao, Yunfeng Zhu, Rui Shi, Jiguang Zhang, Yana Liu, Jun Wang, Liquan Li\",\"doi\":\"10.1016/j.matre.2023.100246\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Although Mg-based hydrides are extensively considered as a prospective material for solid-state hydrogen storage and clean energy carriers, their high operating temperature and slow kinetics are the main challenges for practical application. Here, a Mg–Ni based hydride, Mg<sub>2</sub>NiH<sub>4</sub> nanoparticles (∼100 nm), with dual modification strategies of nanosizing and alloying is successfully prepared via a gas-solid preparation process. It is demonstrated that Mg<sub>2</sub>NiH<sub>4</sub> nanoparticles form a unique chain-like structure by oriented stacking and exhibit impressive hydrogen storage performance: it starts to release H<sub>2</sub> at ∼170 °C and completes below 230 °C with a saturated capacity of 3.32 wt% and desorbs 3.14 wt% H<sub>2</sub> within 1800 s at 200 °C. The systematic characterizations of Mg<sub>2</sub>NiH<sub>4</sub> nanoparticles at different states reveal the dehydrogenation behavior and demonstrate the excellent structural and hydrogen storage stabilities during the de/hydrogenated process. This research is believed to provide new insights for optimizing the kinetic performance of metal hydrides and novel perspectives for designing highly active and stable hydrogen storage alloys.</p></div>\",\"PeriodicalId\":61638,\"journal\":{\"name\":\"材料导报:能源(英文)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-02-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2666935823001131/pdfft?md5=bb54c4ba0870a60c1e86c0b8bc0ab9df&pid=1-s2.0-S2666935823001131-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"材料导报:能源(英文)\",\"FirstCategoryId\":\"1087\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2666935823001131\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"材料导报:能源(英文)","FirstCategoryId":"1087","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666935823001131","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Magnesium nickel hydride monocrystalline nanoparticles for reversible hydrogen storage
Although Mg-based hydrides are extensively considered as a prospective material for solid-state hydrogen storage and clean energy carriers, their high operating temperature and slow kinetics are the main challenges for practical application. Here, a Mg–Ni based hydride, Mg2NiH4 nanoparticles (∼100 nm), with dual modification strategies of nanosizing and alloying is successfully prepared via a gas-solid preparation process. It is demonstrated that Mg2NiH4 nanoparticles form a unique chain-like structure by oriented stacking and exhibit impressive hydrogen storage performance: it starts to release H2 at ∼170 °C and completes below 230 °C with a saturated capacity of 3.32 wt% and desorbs 3.14 wt% H2 within 1800 s at 200 °C. The systematic characterizations of Mg2NiH4 nanoparticles at different states reveal the dehydrogenation behavior and demonstrate the excellent structural and hydrogen storage stabilities during the de/hydrogenated process. This research is believed to provide new insights for optimizing the kinetic performance of metal hydrides and novel perspectives for designing highly active and stable hydrogen storage alloys.