Pd catalysts were characterized using NO-temperature programmed desorption (NO-TPD), H2-temperature programmed reduction (H2-TPR) and a catalytic activity test.

Study on adsorption of NO_x over CoH-FBZ by temperature-programmed desorption technique;

The results of nitrogen adsorption and temperature-programmed desorption show that the carbon supports have almost identical porous texture but different types and amounts of surface oxyge.

Ni/γ-Al2O3 catalysts prepared by three different ways,general reduction(GR),plasma reduction after calcination(PR),and plasma direct reduction without calcination(PDR),were investigated by temperature-programmed desorption(TPD) with H2 and CO2,X-ray diffraction,and N2 adsorption.

Based on determination of the kinetic model equation of TPD,a new simulation method used to characterize the surface acid strength was developed by using one group of TPD experimental data.

Static adsorption,dynamic adsorption,TPD and TPR were used to investigate the adsorption and desorption of thiophene on the nickel based amorphous alloy.

A temperature-programmed desorption (TPD) kinetic model related with heating rate, temperature and n-Propylamine overlay fraction of catalyst surface acid sites at maximum rate of desorption was determined, and a method characterizing acid density, acid strength and the distribution extent of acid strength was developed.