Physical and chemical properties of the catalysts were studied using activity measurement, BET surface area measurement, XRD, TG DTA and IR spectra etc.

• 用原子吸收、碘价分析、活性和 BET比表面积测定及 XRD、 TG- DTA、 IR等手段 ；对催化剂和产物进行了物理和化学表征 .