Facile Synthesis of Nb2O5@Carbon Core-Shell Nanocrystals with Controlled Crystalline Structure for High-Power Anodes in Hybrid SupercapacitorsHighly Cited Paper
DC Field | Value | Language |
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dc.contributor.author | Lim E. | - |
dc.contributor.author | Jo C. | - |
dc.contributor.author | Kim H. | - |
dc.contributor.author | Kim M.-H. | - |
dc.contributor.author | Mun Y. | - |
dc.contributor.author | Chun J. | - |
dc.contributor.author | Ye Y. | - |
dc.contributor.author | Hwang J. | - |
dc.contributor.author | Ha K.-S. | - |
dc.contributor.author | Kwang Chul Roh | - |
dc.contributor.author | Kisuk Kang | - |
dc.contributor.author | Yoon S. | - |
dc.contributor.author | Lee J. | - |
dc.date.available | 2016-01-25T00:13:21Z | - |
dc.date.created | 2015-08-17 | - |
dc.date.issued | 2015-07 | - |
dc.identifier.issn | 1936-0851 | - |
dc.identifier.uri | https://pr.ibs.re.kr/handle/8788114/2340 | - |
dc.description.abstract | Hybrid supercapacitors (battery-supercapacitor hybrid devices, HSCs) deliver high energy within seconds (excellent rate capability) with stable cyclability. One of the key limitations in developing high-performance HSCs is imbalance in power capability between the sluggish Faradaic lithium-intercalation anode and rapid non-Faradaic capacitive cathode. To solve this problem, we synthesize Nb<inf>2</inf>O<inf>5</inf>@carbon core-shell nanocyrstals (Nb<inf>2</inf>O<inf>5</inf>@C NCs) as high-power anode materials with controlled crystalline phases (orthorhombic (T) and pseudohexagonal (TT)) via a facile one-pot synthesis method based on a water-in-oil microemulsion system. The synthesis of ideal T-Nb<inf>2</inf>O<inf>5</inf> for fast Li+ diffusion is simply achieved by controlling the microemulsion parameter (e.g., pH control). The T-Nb<inf>2</inf>O<inf>5</inf>@C NCs shows a reversible specific capacity of ∼180 mA h g-1 at 0.05 A g-1 (1.1-3.0 V vs Li/Li+) with rapid rate capability compared to that of TT-Nb<inf>2</inf>O<inf>5</inf>@C and carbon shell-free Nb<inf>2</inf>O<inf>5</inf> NCs, mainly due to synergistic effects of (i) the structural merit of T-Nb<inf>2</inf>O<inf>5</inf> and (ii) the conductive carbon shell for high electron mobility. The highest energy (∼63 W h kg-1) and power (16528 W kg-1 achieved at ∼5 W h kg-1) densities within the voltage range of 1.0-3.5 V of the HSC using T-Nb<inf>2</inf>O<inf>5</inf>@C anode and MSP-20 cathode are remarkable. © 2015 American Chemical Society | - |
dc.description.uri | 1 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | controlled crystal structures | - |
dc.subject | core-shell nanostructures | - |
dc.subject | high-power anodes | - |
dc.subject | hybrid supercapacitors | - |
dc.subject | orthorhombic Nb<inf>2</inf>O<inf>5</inf> nanocrystals | - |
dc.title | Facile Synthesis of Nb2O5@Carbon Core-Shell Nanocrystals with Controlled Crystalline Structure for High-Power Anodes in Hybrid Supercapacitors | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.identifier.wosid | 000358823200087 | - |
dc.identifier.scopusid | 2-s2.0-84938152116 | - |
dc.identifier.rimsid | 20811 | ko |
dc.date.tcdate | 2018-10-01 | - |
dc.contributor.affiliatedAuthor | Kisuk Kang | - |
dc.identifier.doi | 10.1021/acsnano.5b02601 | - |
dc.identifier.bibliographicCitation | ACS NANO, v.9, no.7, pp.7497 - 7505 | - |
dc.citation.title | ACS NANO | - |
dc.citation.volume | 9 | - |
dc.citation.number | 7 | - |
dc.citation.startPage | 7497 | - |
dc.citation.endPage | 7505 | - |
dc.date.scptcdate | 2018-10-01 | - |
dc.description.wostc | 115 | - |
dc.description.scptc | 118 | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | LITHIUM-ION BATTERIES | - |
dc.subject.keywordPlus | ELECTROCHEMICAL ENERGY-STORAGE | - |
dc.subject.keywordPlus | CARBIDE-DERIVED CARBON | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE ANODE | - |
dc.subject.keywordPlus | NIOBIUM PENTOXIDE | - |
dc.subject.keywordPlus | ELECTRODE MATERIALS | - |
dc.subject.keywordPlus | ACTIVATED CARBON | - |
dc.subject.keywordPlus | INTERCALATION PSEUDOCAPACITANCE | - |
dc.subject.keywordPlus | NEGATIVE-ELECTRODE | - |
dc.subject.keywordPlus | NB2O5 ELECTRODES | - |
dc.subject.keywordAuthor | orthorhombic Nb2O5 nanocrystals | - |
dc.subject.keywordAuthor | controlled crystal structures | - |
dc.subject.keywordAuthor | core-shell nanostructures | - |
dc.subject.keywordAuthor | high-power anodes | - |
dc.subject.keywordAuthor | hybrid supercapacitors | - |