Zi-yin DAI , Bing ZHANG , Hideo KIMURA , Li-rong XIAO , Rong-han LIU , Cui NI , Chuan-xin HOU , Xue-qin SUN , Yu-ping ZHANG , Xiao-yang YANG , Rong-hai YU , Wei DU , Xiu-bo XIE
{"title":"一锅煅烧 Ni-MOF 前驱体生成的 Vermiform Ni@CNT 可改善 MgH2 的储氢性能","authors":"Zi-yin DAI , Bing ZHANG , Hideo KIMURA , Li-rong XIAO , Rong-han LIU , Cui NI , Chuan-xin HOU , Xue-qin SUN , Yu-ping ZHANG , Xiao-yang YANG , Rong-hai YU , Wei DU , Xiu-bo XIE","doi":"10.1016/S1003-6326(24)66565-9","DOIUrl":null,"url":null,"abstract":"<div><p>The Ni-coated carbon nanotubes (Ni@CNT) composite was synthesized by the facile “filtration + calcination” of Ni-based metal−organic framework (MOF) precursor and the obtained composite was used as a catalyst for MgH<sub>2</sub>. MgH<sub>2</sub> was mixed evenly with different amounts of Ni@CNT (2.5, 5.0 and 7.5, wt.%) through ball milling. The MgH<sub>2</sub>−5wt.%Ni@CNT can absorb 5.2 wt.% H<sub>2</sub> at 423 K in 200 s and release about 3.75 wt.% H<sub>2</sub> at 573 K in 1000 s. And its dehydrogenation and rehydrogenation activation energies are reduced to 87.63 and 45.28 kJ/mol (H<sub>2</sub>). The in-situ generated Mg<sub>2</sub>Ni/Mg<sub>2</sub>NiH<sub>4</sub> exhibits a good catalytic effect due to the provided more diffusion channels that can be used as “hydrogen pump”. And the presence of carbon nanotubes improves the properties of MgH<sub>2</sub> to some extent.</p></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"34 8","pages":"Pages 2629-2644"},"PeriodicalIF":4.7000,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1003632624665659/pdf?md5=2eaa25f196ab4b040d00f6a0849cdb20&pid=1-s2.0-S1003632624665659-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Vermiform Ni@CNT derived from one-pot calcination of Ni-MOF precursor for improving hydrogen storage of MgH2\",\"authors\":\"Zi-yin DAI , Bing ZHANG , Hideo KIMURA , Li-rong XIAO , Rong-han LIU , Cui NI , Chuan-xin HOU , Xue-qin SUN , Yu-ping ZHANG , Xiao-yang YANG , Rong-hai YU , Wei DU , Xiu-bo XIE\",\"doi\":\"10.1016/S1003-6326(24)66565-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The Ni-coated carbon nanotubes (Ni@CNT) composite was synthesized by the facile “filtration + calcination” of Ni-based metal−organic framework (MOF) precursor and the obtained composite was used as a catalyst for MgH<sub>2</sub>. MgH<sub>2</sub> was mixed evenly with different amounts of Ni@CNT (2.5, 5.0 and 7.5, wt.%) through ball milling. The MgH<sub>2</sub>−5wt.%Ni@CNT can absorb 5.2 wt.% H<sub>2</sub> at 423 K in 200 s and release about 3.75 wt.% H<sub>2</sub> at 573 K in 1000 s. And its dehydrogenation and rehydrogenation activation energies are reduced to 87.63 and 45.28 kJ/mol (H<sub>2</sub>). The in-situ generated Mg<sub>2</sub>Ni/Mg<sub>2</sub>NiH<sub>4</sub> exhibits a good catalytic effect due to the provided more diffusion channels that can be used as “hydrogen pump”. And the presence of carbon nanotubes improves the properties of MgH<sub>2</sub> to some extent.</p></div>\",\"PeriodicalId\":23191,\"journal\":{\"name\":\"Transactions of Nonferrous Metals Society of China\",\"volume\":\"34 8\",\"pages\":\"Pages 2629-2644\"},\"PeriodicalIF\":4.7000,\"publicationDate\":\"2024-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S1003632624665659/pdf?md5=2eaa25f196ab4b040d00f6a0849cdb20&pid=1-s2.0-S1003632624665659-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Transactions of Nonferrous Metals Society of China\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1003632624665659\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Transactions of Nonferrous Metals Society of China","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1003632624665659","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
Vermiform Ni@CNT derived from one-pot calcination of Ni-MOF precursor for improving hydrogen storage of MgH2
The Ni-coated carbon nanotubes (Ni@CNT) composite was synthesized by the facile “filtration + calcination” of Ni-based metal−organic framework (MOF) precursor and the obtained composite was used as a catalyst for MgH2. MgH2 was mixed evenly with different amounts of Ni@CNT (2.5, 5.0 and 7.5, wt.%) through ball milling. The MgH2−5wt.%Ni@CNT can absorb 5.2 wt.% H2 at 423 K in 200 s and release about 3.75 wt.% H2 at 573 K in 1000 s. And its dehydrogenation and rehydrogenation activation energies are reduced to 87.63 and 45.28 kJ/mol (H2). The in-situ generated Mg2Ni/Mg2NiH4 exhibits a good catalytic effect due to the provided more diffusion channels that can be used as “hydrogen pump”. And the presence of carbon nanotubes improves the properties of MgH2 to some extent.
期刊介绍：
The Transactions of Nonferrous Metals Society of China (Trans. Nonferrous Met. Soc. China), founded in 1991 and sponsored by The Nonferrous Metals Society of China, is published monthly now and mainly contains reports of original research which reflect the new progresses in the field of nonferrous metals science and technology, including mineral processing, extraction metallurgy, metallic materials and heat treatments, metal working, physical metallurgy, powder metallurgy, with the emphasis on fundamental science. It is the unique preeminent publication in English for scientists, engineers, under/post-graduates on the field of nonferrous metals industry. This journal is covered by many famous abstract/index systems and databases such as SCI Expanded, Ei Compendex Plus, INSPEC, CA, METADEX, AJ and JICST.
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