서지주요정보
이중주형법을 이용한 매크로포어와 메조포어를 함께 갖는 실리케이트의 합성에 관한 연구 = A Study on the synthesis of silicates having both macropores and mesopores via dual-templating method
서명 / 저자 이중주형법을 이용한 매크로포어와 메조포어를 함께 갖는 실리케이트의 합성에 관한 연구 = A Study on the synthesis of silicates having both macropores and mesopores via dual-templating method / 권성순.
저자명 권성순 ; Kwon, Sung-Soon
발행사항 [대전 : 한국과학기술원, 2003].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8014085

소장위치/청구기호

학술문화관(문화관) 보존서고

MCBE 03036

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Recent development of various templating techniques has led to the chemical preparations of porous materials with ordered arrays of uniform pores with diameters from several nanometers to micrometers. Materials with bimodal pore size distribution are expected to utilize the benefits of each pore size regime. The dual-templating methods was used in this work to prepare the silicates having not only mesopores but also macropores. The macropores were made by colloidal crystal templating method using polystyrene spheres with anion groups on the surface, while the mesopores were prepared by supramolecular templating method with organic templates leading to the mesoporous structures of MCM-41, HMS, and SBA-15, respectively. The packing modes of latex templates and the skeletal silica were observed by SEM, the macropores and mesopores were observed by TEM, and the pore size distribution and pore volume were measured by $N_2$ Adsorption. The resulting silicates have interconnected macropores with the same geometry to the original template spheres with uniform size and shape. The walls of macropores contained uniform and ordered mesopores. The mesopores made by ionic template, neutral amine and amphiphilic triblock copolymers had their corresponding mesoporous structures of MCM-41, HMS, and SBA-15, respectively. The mesopores were formed partially when the MCM-41 mother liquor was just filtered over the packing of the spheres without sonication and hydrothermal treatment. When the solution was infused by sonication, the mesoporous structure was not ordered. The silicates with macropores and mesopores of HMS and SBA-15 had higher surface area than the silicates containing HMS mesopores only. Filtration was more effective for infusing mother liquor of HMS and SBA-15 than sonication because the driving force for penetration can be provided via suction of aspirator connected to the filter apparatus.

서지기타정보

서지기타정보
청구기호 {MCBE 03036
형태사항 xi, 98 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Sung-Soon Kwon
지도교수의 한글표기 : 임선기
지도교수의 영문표기 : Son-Ki Ihm
학위논문 학위논문(석사) - 한국과학기술원 : 생명화학공학과,
서지주기 참고문헌 : p. 88-98
주제 매크로포어
메조포어
콜로이드결정
주형법
macropore
mesopore
dual-templating
colloidal
crystal
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