{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1390282763137259264.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.5796/electrochemistry.71.776"}},{"identifier":{"@type":"NDL_BIB_ID","@value":"6698110"}},{"identifier":{"@type":"URI","@value":"http://id.ndl.go.jp/bib/6698110"}},{"identifier":{"@type":"URI","@value":"https://ndlsearch.ndl.go.jp/books/R000000004-I6698110"}},{"identifier":{"@type":"URI","@value":"https://www.jstage.jst.go.jp/article/electrochemistry/71/9/71_776/_pdf"}},{"identifier":{"@type":"NAID","@value":"10011154630"}}],"dc:title":[{"@language":"en","@value":"Research and Development of Mg-Based Hydrogen Storage Alloys for Intended Use in Nickel-Metal Hydride Batteries"},{"@value":"Reserch and Development of Mg-Based Hydrogen Storage Alloys for Intended Use in Nickel-Metal Hydride Batteries"}],"dc:language":"en","description":[{"type":"abstract","notation":[{"@language":"en","@value":"<p>The physicochemical and electrochemical characteristics of Mg-based hydrogen storage alloys modified by various methods are discussed for intended use in nickel-metal hydride batteries. A Mg<sub>2</sub>Ni-Ni composite prepared by ball-milling of Mg<sub>2</sub>Ni alloy with Ni (Mg<sub>2</sub>Ni/Ni=1/1.28 in mole ratio) has a homogeneous amorphous structure and exhibits much improved hydriding-dehydriding characteristics and a very high discharge capacity at room temperature. Surface modification of amorphous MgNi alloys by ball-milling with graphite led to an improvement in the hydriding-dehydriding and charge-discharge characteristics. It is suggested that both a charge-transfer reaction between graphite and Mg and an increase in the Ni/Mg ratio on the alloy surface may be responsible for the enhanced characteristics of the MgNi-graphite composite. By using carbon materials with lower crystallinity for the surface modification, the ball-milling time to reach a maximum discharge capacity was shortened. Moreover, it was found that the combination of partial substitution with Ti and V and the subsequent surface modification with graphite promoted hydrogen desorbability and improved charge-discharge cycle performance and high rate dischargeability. The combination of bulk and surface modifications is very effective in improving the physicochemical and electrochemical characteristics of Mg-based alloys.</p>"}],"abstractLicenseFlag":"allow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410001277347916545","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000000024350"}],"foaf:name":[{"@language":"en","@value":"IWAKURA Chiaki"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282763137259267","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000000498095"}],"foaf:name":[{"@language":"en","@value":"INOUE Hiroshi"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282763137259265","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000000498085"}],"foaf:name":[{"@language":"en","@value":"FURUKAWA Naoji"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282763137259264","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000000498093"}],"foaf:name":[{"@language":"en","@value":"NOHARA Shinji"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"13443542"},{"@type":"LISSN","@value":"13443542"},{"@type":"EISSN","@value":"21862451"},{"@type":"NDL_BIB_ID","@value":"000000031819"},{"@type":"ISSN","@value":"13443542"},{"@type":"NCID","@value":"AN00151637"}],"prism:publicationName":[{"@language":"en","@value":"Electrochemistry"},{"@language":"en","@value":"Electrochemistry"}],"dc:publisher":[{"@language":"en","@value":"The Electrochemical Society of Japan"},{"@language":"ja","@value":"公益社団法人　電気化学会"}],"prism:publicationDate":"2003-09-05","prism:volume":"71","prism:number":"9","prism:startingPage":"776","prism:endingPage":"782"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","url":[{"@id":"http://id.ndl.go.jp/bib/6698110"},{"@id":"https://ndlsearch.ndl.go.jp/books/R000000004-I6698110"},{"@id":"https://www.jstage.jst.go.jp/article/electrochemistry/71/9/71_776/_pdf"}],"availableAt":"2003-09-05","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Mg-based%20Alloy","dc:title":"Mg-based Alloy"},{"@id":"https://cir.nii.ac.jp/all?q=Nickel-metal%20Hydride%20Battery","dc:title":"Nickel-metal Hydride Battery"},{"@id":"https://cir.nii.ac.jp/all?q=Graphite","dc:title":"Graphite"},{"@id":"https://cir.nii.ac.jp/all?q=Alloy-carbon%20Material%20Composite","dc:title":"Alloy-carbon Material Composite"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360011146597551872","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Hydriding Kinetics of Mixtures Containing Some 3d-Transition Metal Oxides and Magnesium*"}]},{"@id":"https://cir.nii.ac.jp/crid/1360292620039867904","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Effect of surface modification of an MgNi alloy with graphite by ball-milling on the rate of hydrogen absorption"}]},{"@id":"https://cir.nii.ac.jp/crid/1360292620419049216","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"The Diffusion of H in Mg and the Nucleation and Growth of MgH<sub>\n                     <sub>2</sub>\n                  </sub> in Thin Films*"}]},{"@id":"https://cir.nii.ac.jp/crid/1360292621447982720","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Synthesis and electrode characteristics of the new composite 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