The effect of the addition of sodium on the physicochemical properties was studied by means of XRD(X-ray diffration), IR spectrum of adsorbed pyridine, NH3-TPD, H2 chemisorption, TPR(temperature-programmed reduction), etc.

• 利用XRD、吡啶吸附红外光谱、NH3-TPD、氢化学吸附、TPR等手段；研究了Na的添加对PtSn/ZSM-5催化剂物化性质的影响.