Large-scale synthesis and characterization of zeolite-templated carbon for electrochemical application = 전기화학적 응용을 위한 제올라이트 주형 탄소의 대량 합성 및 특성 분석

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 111
  • Download : 0
Microporous carbons formed along zeolite pore channels have attracted an attention as catalysts and electrode materials for electrochemical energy conversion- and storage devices. In this thesis, the electrocatalytic performance of N-doped zeolite-templated carbon for oxygen reduction reaction will be addressed. N-doped zeolite-templated carbon exhibited high current capacity and positive onset potential, comparable to those of Pt catalyst due to its large surface area and curved graphene-like structure, which facilitates electron transfer. However, it was difficult to synthesize the zeolite-templated carbon in large-scale with structural regularity and reproducibility. Thereby, systematic studies on the physicochemical properties and electrochemical performance of the carbon was still difficult to be achieved. The major cause of the problems is that carbon precursor is easily deposited on the outer surface of zeolites due to narrow zeolite micropores. In this thesis, catalytic carbonization route within zeolite pores will be addressed to solve this synthetic problem. Calcium ion embedded in zeolite pores catalyzed the carbonization of ethylene, resulting in a pore-selective carbon deposition. This made it possible to obtain high-quality carbon products even in large-scale synthesis using several hundred grams of zeolite. The present synthetic route thus may provide great convenience for further studies on the characterization and electrochemical applications of zeolite-templated carbons.
Advisors
Ryoo, Ryongresearcher유룡researcher
Description
한국과학기술원 :화학과,
Publisher
한국과학기술원
Issue Date
2018
Identifier
325007
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 화학과, 2018.2,[vii, 85 p. :]

Keywords

Porous carbon▼azeolite▼azeolite-templated carbon▼aenergy storage and conversion▼asynthesis scale-up; 다공성 탄소▼a제올라이트▼a제올라이트 주형 탄소▼a에너지 저장 및 변환▼a대량 합성

URI
http://hdl.handle.net/10203/265470
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=734456&flag=dissertation
Appears in Collection
CH-Theses_Ph.D.(박사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0