摘要
采用脉冲硫化、连续硫化、程序升温还原、程序升温及程序降温电导及X射线衍射等方法研究了贵金属Pt对MoO3催化剂还原-流化过程的影响及Pt对MOS2配位不饱和活性中心形成的影响．结果表明，Pt担载或在MoO3上可以促进MoO3的还原-硫化。
Effect of supported Pt on reduction and sulfidation for Pt/MoO3 and Pt/MOS2 catalysts were studied by pulse reduction-sulfidation, flow reduction-sulfidation, temperature pro-grammed electrical conductivity, temperature programmed reduction technique and X ray diffrac-tion analysis. It was found that, for Pt/MoO3 the addition of Pt greatly promoted the reductionand sulfidation of MoO3, it was also shown that, for Pt/MoS2 Pt obviously facilitated the re-duction of MoS2 to form S-vacancy, leading to an increment of the concentration of coordinativeunsaturated molybdenum.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
1998年第5期439-443,共5页
Acta Physico-Chimica Sinica
