승온탈리법에 의한 Ag/α-Al_2O_3촉매의 표면 특성에 관한 연구 = A Study on Surface Characteristics of Ag/α-Al_2O_3 by Temperature Programmed Desorption Technique

다국어 초록 (Multilingual Abstract)

By using the Temperature Programmed Desorption Technique, the surface characteristics of Ag/α-Al_2O_3 catalyst were studied. The TPD method provided information on the adsorption; desorption process of various catalysts. This study was carried out by using the Ag/α-Al_2O_3 and oxygen gas as the catalyst and adsorbed material respectively.
According to the experimental results, Ag/α-Al_2O_3 catalyst has two different kinds of peaks, which are termed sites Ⅰ(low temperature peak, weaker sites) and sites Ⅱ(high temperature stronger sites), respectively. Oxygen of sites Ⅱ to be very stronger in adsorption on Ag/α-Al_2O_3 catalyst than that of sites I. In the oxidation of ethylene on Ag/α-Al_2O_3 catalyst, the ethylene was considered to react more easily with the oxygen of sites I than that of sites Ⅱ. And 10wt% catalyst was more reduced than 5wt% catalyst.

목차 (Table of Contents)

• Ⅰ. 서 론
• Ⅱ. 실 험
• 1. 촉매제조
• 2. TPD의 실험장치와 실험방법
• Ⅲ. 결과 및 검토
• Ⅳ. 결 론