DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Kim, Sang-Ouk | - |
dc.contributor.advisor | 김상욱 | - |
dc.contributor.author | Haq, Atta ul | - |
dc.contributor.author | Atta ul Haq | - |
dc.date.accessioned | 2015-04-23T07:11:15Z | - |
dc.date.available | 2015-04-23T07:11:15Z | - |
dc.date.issued | 2012 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=568109&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/197376 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 신소재공학과, 2012.8, [ vi, 51 p. ] | - |
dc.description.abstract | We synthesized multicomponent hybrid nanostrcutures by variation of chemical processing routes. The hybrid nanostructure is based on nitrogen doped CNT (nCNT), polyaniline (pani) and metal oxides (MnOx & RuOx). The interaction between nCNT and pani resulted in a strong bond between protonated pyridinic N and aniline radical. Such kind of bonding is explained by proposing a radical-cation coupling model (RCCM). The strong coupling between nCNT and pani is evident from the N1s deconvoluted XPS spectra where a new peak arises at 398.9eV. Raman spectra taken before and after solution processing of nCNT-pani showed the presence of pani peaks. Due to the close interaction and strong bonding, our hybrid nanostructure (nCNT-pani) showed specific capacitance value of 1,450 F/g and 515 F/g in neutral and acidic electrolyte respectively that is comparatively higher than reported before. Similarly the electrochemical performance is further enhanced by incorporation of metal oxides in nCNT-pani via one step and two-step process. We achieved a maximum specific capacitance value (1,817 F/g) for nCNT-pani/MnOx-1 in neutral solution. Similarly, in case of nCNT-pani/RuOx-2, a specific capacitance value of (1,155 F/g) was achieved in acidic solution almost double the value of nCNT-pani. The overall good electrochemical performance exhibited by our two and three component hybrid nanostructures is considered to be because of very close interactions among them. | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | nitrogen doped carbon nanotube | - |
dc.subject | 정전 용량 | - |
dc.subject | 라디칼 양이온 커플링 | - |
dc.subject | 메탈옥사이드 | - |
dc.subject | 폴리아닐린 | - |
dc.subject | 질소도핑탄소나노튜브 | - |
dc.subject | polyaniline | - |
dc.subject | metal oxides | - |
dc.subject | radical-cation coupling | - |
dc.subject | specific capacitance | - |
dc.title | N-doped cnt-pani based hybrid nanostructures for supercapacitor electrode | - |
dc.title.alternative | 질소 도핑된 카본나노튜브와 폴리아닐린 나노복합체를 이용한 수퍼캐패시터 전극에 관한 연구 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 568109/325007 | - |
dc.description.department | 한국과학기술원 : 신소재공학과, | - |
dc.identifier.uid | 020104497 | - |
dc.contributor.localauthor | Kim, Sang-Ouk | - |
dc.contributor.localauthor | 김상욱 | - |
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