The Effects of Preparation Conditions on the Surface Area of Mn-based Catalyst

This paper is ralate to the effect preparation process of the supported Mn-based catalysts on its surface area.The experimental data show that:the amount of load of the MnOx,the calcination temperature of catalyst and the additives are affect factors of the catalyst specific surface area.With the amount of MnO_x load(MnO_x/TiO_2 molar ratio increased from 0.2~0.5)increased,the catalyst surface area corresponding increase;while with the higher calcination temperature(450 ℃~600 ℃) of the catalyst,and its surface area and pore structure corresponding decreases;Among four kinds of additives(Ce,Ni,Fe,Cu),Ce has the least impact on specific surface area and pore structure of MnO_x/TiO_2.