Ammonium functionalization of porous supports for high loading metal catalysts = 금속촉매 다량 담지를 위한 다공성 지지체의 암모늄 관능화

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High loading of a metal catalyst on a porous support is desirable to achieve high catalytic performance in many industrial processes involved in heterogeneous metal catalysts. However, at such a high level of loading, metal dispersion becomes very low due to agglomeration of metal particles on the support material. Consequentially, it is difficult to obtain a large metal surface area, which participates in catalytic reaction and eventually removes the chance to increase catalytic activity beyond a certain point. To overcome this problem, the work presented in this thesis addresses an effective method for supporting metal catalysts on porous materials and their catalytic activity in various catalytic reactions. More specifically, ammonium groups are introduced into the porous support to increase the internal basicity of the porous environment. The basic functional groups caused local precipitation of the metal precursors as hydroxide forms preferentially inside the pores, which allowed to design a highly dispersed supported metal catalyst with high loading amount up to 25 wt%. As a result, the supported metal catalysts obtained here exhibited high catalytic performance toward to industrially relevant catalytic reactions.
Advisors
Ryoo, Ryongresearcher유룡researcher
Description
한국과학기술원 :화학과,
Publisher
한국과학기술원
Issue Date
2017
Identifier
325007
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 화학과, 2017.8,[viii, 111 p. :]

Keywords

high loading metal catalyst▼aporous material▼ahigh dispersion▼aammonium functionalization▼acatalytic performance; 다량의 금속담지촉매▼a다공성 물질▼a높은 분산도▼a암모늄 관능화▼a촉매 반응성

URI
http://hdl.handle.net/10203/242169
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=718922&flag=dissertation
Appears in Collection
CH-Theses_Ph.D.(박사논문)
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