Synthesis of shape- and composition-controlled noble metal nanocatalysts and their applications = 형태와 조성이 조절된 귀금속 나노촉매 합성 및 응용에 관한 연구

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In this dissertation, shape- and composition-controlled noble metal nanocatalysts were synthesized for improving electrocatalytic properties toward oxygen reduction and oxygen evolution reaction in $Li-O_2$ battery and alcohol oxidation reaction in direct alcohol fuel cells. In addition, development of facile synthesis method for preparing shape- and composition-controlled noble metal nanocatalysts and their growth mechanism were also described. In chapter 2, chestnut-bur-like palladium nanocatalysts were synthesized in high yield by using cetylpyridinium chloride as stabilizer and their growth mechanism was investigated. In chapter 3, highly branched palladium nanodendrites supported on graphene were prepared and applied as cathode catalysts in Li-oxygen battery. In chapter 4, 1-dimensional Pt nanochains with enhanced electrocatalytic activity and durability were prepared through facile solution-phase synthesis method. In chapter 5, composition-controlled PtPd alloy nanocatalysts were synthesized on graphene through the introduction of bifunctional materials, which can be used to modify the GNP surface and simultaneously reduce metal ions. The prepared noble metal nanocatalysts in this dissertation were synthesized via facile solution-phase synthesis method and they exhibited enhanced electrocatalytic properties for alcohol oxidation reaction or oxygen reduction/evolution reactions.
Advisors
Park, O Okresearcher박오옥researcher
Description
한국과학기술원 :생명화학공학과,
Publisher
한국과학기술원
Issue Date
2017
Identifier
325007
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 생명화학공학과, 2017.8,[x, 104 p. :]

Keywords

Noble metal nanocatalyst▼ashape control▼acomposition control▼aalcohol oxidation reaction▼aLi-$O_2$ battery; 귀금속 나노촉매▼a형태 조절▼a조성 조절▼a알코올 산화반응▼a리튬-산소 전지

URI
http://hdl.handle.net/10203/264863
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=868072&flag=dissertation
Appears in Collection
CBE-Theses_Ph.D.(박사논문)
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