Synthesis of hollow TiO2@N-doped carbon with enhanced electrochemical capacitance by an in situ hydrothermal process using hexamethylenetetramine
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Jung Ho | - |
dc.contributor.author | Bhattacharjya, Dhrubajyoti | - |
dc.contributor.author | Yu, Jong-Sung | - |
dc.date.accessioned | 2021-09-05T17:07:55Z | - |
dc.date.available | 2021-09-05T17:07:55Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2014 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/101095 | - |
dc.description.abstract | A unique and novel soft template-based hydrothermal approach was developed for the synthesis of hollow TiO2 and hollow TiO2@ N-doped carbon. The synthesis strategy involves the slow hydrolysis of hexamethylenetetramine (HMTA) at 100 degrees C in the presence of a block copolymer (Pluronic F127) as the surfactant, resorcinol as the polymer precursor and titanium salt as the metal oxide precursor to form a hollow composite nanostructure consisting of TiO2 nanoparticles (NPs) covered with a resorcinol-formaldehyde (RF) polymer shell. Hydrolysis of HMTA provides a gradual and controlled supply of hydroxide ions, formaldehyde and ammonia. The resulting ammonia initiates the polymerization reaction of the generated formaldehyde with resorcinol to produce an RF-polymer framework over the TiO2 NPs thereby generating TiO2@ RF polymer particles, which in turn self-assemble to form a hollow TiO2@ RF polymer composite nanostructure. Subsequent pyrolysis under an N-2 atmosphere produces a hollow TiO2 nanostructure covered with a thin layer of N-doped carbon. The resulting novel nanostructure not only possesses a high surface area of 310 m(2) g(-1), but also provides a protective N-doped carbon layer. As a result, this hollow TiO2@ N-doped carbon material demonstrates high potential as an electrode material for use as an electrochemical capacitor with high specific capacitance and high durability. Interestingly, this work proceeds through a very effective, simple one-pot synthesis route to generate novel hollow TiO2 composite structures, and will enable the synthesis of various active hollow metal oxide@ N-doped carbon and/or hollow organic-inorganic hydride nanocomposite materials for many possible applications. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | VISIBLE-LIGHT PHOTOCATALYSIS | - |
dc.subject | TIO2 NANOTUBE ARRAYS | - |
dc.subject | ENERGY-STORAGE | - |
dc.subject | HIGH-PERFORMANCE | - |
dc.subject | CHARGE STORAGE | - |
dc.subject | HIERARCHICAL NANOARCHITECTURE | - |
dc.subject | SUPERCAPACITOR ELECTRODES | - |
dc.subject | PHASE-TRANSFORMATION | - |
dc.subject | OXIDE NANOWIRES | - |
dc.subject | LOW-TEMPERATURE | - |
dc.title | Synthesis of hollow TiO2@N-doped carbon with enhanced electrochemical capacitance by an in situ hydrothermal process using hexamethylenetetramine | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Yu, Jong-Sung | - |
dc.identifier.doi | 10.1039/c4ta00928b | - |
dc.identifier.scopusid | 2-s2.0-84903749353 | - |
dc.identifier.wosid | 000339004100057 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY A, v.2, no.29, pp.11472 - 11479 | - |
dc.relation.isPartOf | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.volume | 2 | - |
dc.citation.number | 29 | - |
dc.citation.startPage | 11472 | - |
dc.citation.endPage | 11479 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | VISIBLE-LIGHT PHOTOCATALYSIS | - |
dc.subject.keywordPlus | TIO2 NANOTUBE ARRAYS | - |
dc.subject.keywordPlus | ENERGY-STORAGE | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE | - |
dc.subject.keywordPlus | CHARGE STORAGE | - |
dc.subject.keywordPlus | HIERARCHICAL NANOARCHITECTURE | - |
dc.subject.keywordPlus | SUPERCAPACITOR ELECTRODES | - |
dc.subject.keywordPlus | PHASE-TRANSFORMATION | - |
dc.subject.keywordPlus | OXIDE NANOWIRES | - |
dc.subject.keywordPlus | LOW-TEMPERATURE | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.