Articles & Issues
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
-
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
All issues
백금담지촉매의 금속-담체 상호작용
A Study of SMSI in Supported Pt Catalysts
HWAHAK KONGHAK, April 1985, 23(2), 97-102(6), NONE
Download PDF
Abstract
백금을 담지시킨 SiO2, γ-Al2O3, TiO2 담체 촉매의 금속과 담체간의 강한 상호작용（Strong Metal-Support Interaction）을 연구하기 위해서 수소 흡착 실험과 반응기구가 다른 두 반응 즉 사이클로헥센의 수소화 반응과 사이클로헥산의 탈 수소화 반응이 수행되었다. 실험결과 고온에서 수소 처리되어 환원이 가능한 촉매에서는 담체의 환원에 의한 흡착 억제 현상과 함께 환원된 담체로부터 담지 금속으로의 전자이동이 가능해져서 흡착된 반응물의 자체 결합력이 약화된다는 것을 밝힐 수 있었다.
Hydrogen chemisorption and two reactions with different mechanisms were carried out to investigate the effects of SMSI（Strong Metal-Support Interaction） in platinum catalysts supported on titania, γ-alumina, and silica.
From the experimental results, we can suggest the mechanism of SMSI with two controlling steps, a suppression of adsorption and a weakening effect of bond strength in adsorbate. The mechanism is based on the reduction of supports resulting in a flow of electrons from the reduced supports to the platinum.
From the experimental results, we can suggest the mechanism of SMSI with two controlling steps, a suppression of adsorption and a weakening effect of bond strength in adsorbate. The mechanism is based on the reduction of supports resulting in a flow of electrons from the reduced supports to the platinum.
