DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jeong, Hyung Mo | ko |
dc.contributor.author | Choi, Kyung Min | ko |
dc.contributor.author | Cheng, Tao | ko |
dc.contributor.author | Lee, Dong Ki | ko |
dc.contributor.author | Zhou, Renjia | ko |
dc.contributor.author | Ock, Il Woo | ko |
dc.contributor.author | Milliron, Delia J. | ko |
dc.contributor.author | Goddard, William A., III | ko |
dc.contributor.author | Kang, Jeung Ku | ko |
dc.date.accessioned | 2015-07-29T01:38:01Z | - |
dc.date.available | 2015-07-29T01:38:01Z | - |
dc.date.created | 2015-07-21 | - |
dc.date.created | 2015-07-21 | - |
dc.date.created | 2015-07-21 | - |
dc.date.created | 2015-07-21 | - |
dc.date.issued | 2015-06 | - |
dc.identifier.citation | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, v.112, no.26, pp.7914 - 7919 | - |
dc.identifier.issn | 0027-8424 | - |
dc.identifier.uri | http://hdl.handle.net/10203/200217 | - |
dc.description.abstract | Nanocrystals are promising structures, but they are too large for achieving maximum energy storage performance. We show that rescaling 3-nm particles through lithiation followed by delithiation leads to high-performance energy storage by realizing high capacitance close to the theoretical capacitance available via ion-to-atom redox reactions. Reactive force-field (ReaxFF) molecular dynamics simulations support the conclusion that Li atoms react with nickel oxide nanocrystals (NiO-n) to form lithiated core-shell structures (Ni:Li2O), whereas subsequent delithiation causes Ni:Li2O to form atomic clusters of NiO-a. This is consistent with in situ X-ray photoelectron and optical spectroscopy results showing that Ni2+ of the nanocrystal changes during lithiation-delithiation through Ni-0 and back to Ni2+. These processes are also demonstrated to provide a generic route to rescale another metal oxide. Furthermore, assembling NiO-a into the positive electrode of an asymmetric device enables extraction of full capacitance for a counter negative electrode, giving high energy density in addition to robust capacitance retention over 100,000 cycles. | - |
dc.language | English | - |
dc.publisher | NATL ACAD SCIENCES | - |
dc.title | Rescaling of metal oxide nanocrystals for energy storage having high capacitance and energy density with robust cycle life | - |
dc.type | Article | - |
dc.identifier.wosid | 000357079400030 | - |
dc.identifier.scopusid | 2-s2.0-84937856586 | - |
dc.type.rims | ART | - |
dc.citation.volume | 112 | - |
dc.citation.issue | 26 | - |
dc.citation.beginningpage | 7914 | - |
dc.citation.endingpage | 7919 | - |
dc.citation.publicationname | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | - |
dc.identifier.doi | 10.1073/pnas.1503546112 | - |
dc.contributor.localauthor | Kang, Jeung Ku | - |
dc.contributor.nonIdAuthor | Cheng, Tao | - |
dc.contributor.nonIdAuthor | Zhou, Renjia | - |
dc.contributor.nonIdAuthor | Milliron, Delia J. | - |
dc.contributor.nonIdAuthor | Goddard, William A., III | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | rescaled atomic clusters | - |
dc.subject.keywordAuthor | metal oxide nanocrystals | - |
dc.subject.keywordAuthor | energy storage | - |
dc.subject.keywordAuthor | molecular dynamic simulation | - |
dc.subject.keywordAuthor | in situ electrochemical spectroscopy | - |
dc.subject.keywordAuthor | rescaled atomic clusters | - |
dc.subject.keywordAuthor | metal oxide nanocrystals | - |
dc.subject.keywordAuthor | energy storage | - |
dc.subject.keywordAuthor | molecular dynamic simulation | - |
dc.subject.keywordAuthor | in situ electrochemical spectroscopy | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PSEUDOCAPACITOR MATERIALS | - |
dc.subject.keywordPlus | NICKEL-OXIDE | - |
dc.subject.keywordPlus | ASYMMETRIC SUPERCAPACITORS | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE | - |
dc.subject.keywordPlus | LITHIUM STORAGE | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | NIO | - |
dc.subject.keywordPlus | NANOSHEETS | - |
dc.subject.keywordPlus | ELECTRODE | - |
dc.subject.keywordPlus | CARBON | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PSEUDOCAPACITOR MATERIALS | - |
dc.subject.keywordPlus | NICKEL-OXIDE | - |
dc.subject.keywordPlus | ASYMMETRIC SUPERCAPACITORS | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE | - |
dc.subject.keywordPlus | LITHIUM STORAGE | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | NIO | - |
dc.subject.keywordPlus | NANOSHEETS | - |
dc.subject.keywordPlus | ELECTRODE | - |
dc.subject.keywordPlus | CARBON | - |
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