{"@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/1360574094541016576.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1002/adfm201301851"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fadfm201301851"}},{"identifier":{"@type":"URI","@value":"https://advanced.onlinelibrary.wiley.com/doi/pdf/10.1002/adfm201301851"}}],"dc:title":[{"@value":"Asymmetric Supercapacitors Based on Graphene/MnO<sub>2</sub> Nanospheres and Graphene/MoO<sub>3</sub> Nanosheets with High Energy Density"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>Asymmetric supercapacitors with high energy density are fabricated using a self‐assembled reduced graphene oxide (RGO)/MnO<jats:sub>2</jats:sub> (GrMnO<jats:sub>2</jats:sub>) composite as a positive electrode and a RGO/MoO<jats:sub>3</jats:sub> (GrMoO<jats:sub>3</jats:sub>) composite as a negative electrode in safe aqueous Na<jats:sub>2</jats:sub>SO<jats:sub>4</jats:sub> electrolyte. The operation voltage is maximized by choosing two metal oxides with the largest work function difference. Because of the synergistic effects of highly conductive graphene and highly pseudocapacitive metal oxides, the hybrid nanostructure electrodes exhibit better charge transport and cycling stability. The operation voltage is expanded to 2.0 V in spite of the use of aqueous electrolyte, revealing a high energy density of 42.6 Wh kg<jats:sup>−1</jats:sup> at a power density of 276 W kg<jats:sup>−1</jats:sup> and a maximum specific capacitance of 307 F g<jats:sup>−1</jats:sup>, consequently giving rise to an excellent Ragone plot. In addition, the GrMnO<jats:sub>2</jats:sub>//GrMoO<jats:sub>3</jats:sub> supercapacitor exhibits improved capacitance with cycling up to 1000 cycles, which is explained by the development of micropore structures during the repetition of ion transfer. This strategy for the choice of metal oxides provides a promising route for next‐generation supercapacitors with high energy and high power densities.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380574094541016577","@type":"Researcher","foaf:name":[{"@value":"Jian Chang"}],"jpcoar:affiliationName":[{"@value":"IBS Center for Integrated Nanostructure Physics Institute for Basic Science (IBS)  Daejon 305‐701 Republic of Korea"},{"@value":"Department of Energy Science, Department of Physics Sungkyunkwan University  Suwon 440‐746 Republic of Korea"}]},{"@id":"https://cir.nii.ac.jp/crid/1380574094541016451","@type":"Researcher","foaf:name":[{"@value":"Meihua Jin"}],"jpcoar:affiliationName":[{"@value":"IBS Center for Integrated Nanostructure Physics Institute for Basic Science (IBS)  Daejon 305‐701 Republic of Korea"},{"@value":"Department of Energy Science, Department of Physics Sungkyunkwan University  Suwon 440‐746 Republic of Korea"},{"@value":"National Center for Nanoscience and Technology  Beijing 100190 PR China"}]},{"@id":"https://cir.nii.ac.jp/crid/1380574094541016576","@type":"Researcher","foaf:name":[{"@value":"Fei Yao"}],"jpcoar:affiliationName":[{"@value":"IBS Center for Integrated Nanostructure Physics Institute for Basic Science (IBS)  Daejon 305‐701 Republic of Korea"},{"@value":"Department of Energy Science, Department of Physics Sungkyunkwan University  Suwon 440‐746 Republic of Korea"}]},{"@id":"https://cir.nii.ac.jp/crid/1380574094541016449","@type":"Researcher","foaf:name":[{"@value":"Tae Hyung Kim"}],"jpcoar:affiliationName":[{"@value":"IBS Center for Integrated Nanostructure Physics Institute for Basic Science (IBS)  Daejon 305‐701 Republic of Korea"},{"@value":"Department of Energy Science, Department of Physics Sungkyunkwan University  Suwon 440‐746 Republic of Korea"}]},{"@id":"https://cir.nii.ac.jp/crid/1380574094541016450","@type":"Researcher","foaf:name":[{"@value":"Viet Thong Le"}],"jpcoar:affiliationName":[{"@value":"IBS Center for Integrated Nanostructure Physics Institute for Basic Science (IBS)  Daejon 305‐701 Republic of Korea"},{"@value":"Department of Energy Science, Department of Physics Sungkyunkwan University  Suwon 440‐746 Republic of Korea"}]},{"@id":"https://cir.nii.ac.jp/crid/1380574094541016454","@type":"Researcher","foaf:name":[{"@value":"Hongyan Yue"}],"jpcoar:affiliationName":[{"@value":"IBS Center for Integrated Nanostructure Physics Institute for Basic Science (IBS)  Daejon 305‐701 Republic of Korea"},{"@value":"Department of Energy Science, Department of Physics Sungkyunkwan University  Suwon 440‐746 Republic of Korea"},{"@value":"School of Materials Science and Engineering Harbin University of Science and Technology  Harbin 150040 PR China"}]},{"@id":"https://cir.nii.ac.jp/crid/1380574094541016453","@type":"Researcher","foaf:name":[{"@value":"Fethullah Gunes"}],"jpcoar:affiliationName":[{"@value":"IBS Center for Integrated Nanostructure Physics Institute for Basic Science (IBS)  Daejon 305‐701 Republic of Korea"},{"@value":"Department of Energy Science, Department of Physics Sungkyunkwan University  Suwon 440‐746 Republic of Korea"}]},{"@id":"https://cir.nii.ac.jp/crid/1380574094541016455","@type":"Researcher","foaf:name":[{"@value":"Bing Li"}],"jpcoar:affiliationName":[{"@value":"IBS Center for Integrated Nanostructure Physics Institute for Basic Science (IBS)  Daejon 305‐701 Republic of Korea"},{"@value":"Department of Energy Science, Department of Physics Sungkyunkwan University  Suwon 440‐746 Republic of Korea"}]},{"@id":"https://cir.nii.ac.jp/crid/1380574094541016456","@type":"Researcher","foaf:name":[{"@value":"Arunabha Ghosh"}],"jpcoar:affiliationName":[{"@value":"IBS Center for Integrated Nanostructure Physics Institute for Basic Science (IBS)  Daejon 305‐701 Republic of Korea"},{"@value":"Department of Energy Science, Department of Physics Sungkyunkwan University  Suwon 440‐746 Republic of Korea"}]},{"@id":"https://cir.nii.ac.jp/crid/1380574094541016448","@type":"Researcher","foaf:name":[{"@value":"Sishen Xie"}],"jpcoar:affiliationName":[{"@value":"IBS Center for Integrated Nanostructure Physics Institute for Basic Science (IBS)  Daejon 305‐701 Republic of Korea"},{"@value":"Department of Energy Science, Department of Physics Sungkyunkwan University  Suwon 440‐746 Republic of Korea"},{"@value":"Department of Energy Science Sungkyunkwan University  Suwon 440‐746 Korea"},{"@value":"Institute of Physics Chinese Academy of Sciences  Beijing 100190 PR China"}]},{"@id":"https://cir.nii.ac.jp/crid/1380574094541016452","@type":"Researcher","foaf:name":[{"@value":"Young Hee Lee"}],"jpcoar:affiliationName":[{"@value":"IBS Center for Integrated Nanostructure Physics Institute for Basic Science (IBS)  Daejon 305‐701 Republic of Korea"},{"@value":"Department of Energy Science, Department of Physics Sungkyunkwan University  Suwon 440‐746 Republic of Korea"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"1616301X"},{"@type":"EISSN","@value":"16163028"}],"prism:publicationName":[{"@value":"Advanced Functional Materials"}],"dc:publisher":[{"@value":"Wiley"}],"prism:publicationDate":"2013-08-30","prism:volume":"23","prism:number":"40","prism:startingPage":"5074","prism:endingPage":"5083"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fadfm201301851"},{"@id":"https://advanced.onlinelibrary.wiley.com/doi/pdf/10.1002/adfm201301851"}],"createdAt":"2013-08-30","modifiedAt":"2025-10-06","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050300679168656384","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"A Transient Pseudo-Capacitor Using a Bioderived Ionic Liquid with Na Ions"},{"@value":"A Transient 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