| Issue |
Korean Chemical Engineering Research,
Vol.43, No.2, 215-221, 2005
Vol.43, No.2, 215-221, 2005
Fe-MCM-41의 제조, 물성조사 및 촉매적 응용 연구
Synthesis, Characterization, and Catalytic Applications of Fe-MCM-41
실리카계 메조 물질인 MCM-41의 합성시 Fe3+ 염을 합성 기질에 직접 도입하여 구조 내의 Si를 Fe로 일부 치환시킨 Fe-MCM-41(4 mol% Fe)을 합성하였다. XRD, N2 흡착법, TEM 등으로 합성한 메조 세공 물질의 구조적 특성을 조사하였으며, UV-Vis 및 FT-IR 등의 분광분석을 통하여 철의 상태를 확인하였다. 촉매적 활성 연구를 위하여 과산화수소를 산화제로 이용한 phenol hydroxylation을 수행하였으며, 물을 용매로 반응 온도 50 ℃, phenol:H2O2=1:1 조건에서 ca. 60% 의 전화율을 얻었다. 또한, 구조 중 Fe 활성점을 이용한 탄소 나노 튜브의 성장 가능성을 확인하기 위하여, 아세틸렌가스를 탄소원으로 사용한 thermal-CVD 반응기를 이용하였으며, 다중벽 탄소 나노 튜브를 제조할 수 있었다.
A Fe-containing mesoporous silica (Fe-MCM-41) in which part of Si in the framework was replaced by Fe(Si-O-Fe) has been successfully prepared using Fe3+ salt by a direct synthesis route. Physical properties of the material were characterized by XRD, N2 adsorption, SEM/TEM, UV-vis and FT-IR spectroscopies. Fe-MCM-41 exhibited high catalytic activity in phenol hydroxylation using H2O2 as oxidant, giving phenol conversion of ca. 60% at 50 ℃ [phenol : H2O2 = 1:1, water solvent]. Fe-MCM-41 was also applied to the growth of CNTs, utilizing a thermal-CVD reactor using acetylene gas, which demonstrated that multi-wall CNTs could be prepared efficiently using the Fe-MCM-41 catalyst.
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참고문헌정보(참고문헌, 인용문헌)는 화학공학소재연구정보센터에 의해 제공되고 있습니다.