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应用物理吸附-乙二醇还原法将Pt粒子负载于静电纺丝法制备的碳纳米纤维膜上(CFMs),构建电极Pt/CFMs,并用循环伏安法和计时安培法研究了电极Pt/CFMs在甲醇电化学氧化中的催化性能.结果表明,与用滴涂法构建的Pt/C-CFMs电极相比,电极Pt/CFMs催化氧化甲醇时,具有较高的催化活性、较好的稳定性和较好的耐中间产物毒化的能力.Pt/CFMs电极较好的催化性能可归因于纤维膜内碳纤维的连续性、碳纳米纤维膜较高的电导率以及Pt粒子与碳纤维间的紧密接触,从而提高了Pt粒子的利用率.
Pt / CFMs were prepared by loading Pt particles on carbon nanofiber membranes (CFMs) prepared by electrospinning using physical adsorption-ethylene glycol reduction method. The Pt / CFMs were characterized by cyclic voltammetry and chronoamperometry. The results show that Pt / CFMs have higher catalytic activity and better stability than the Pt / C-CFMs prepared by the drop-coating method. And good resistance to intermediate poisoning.Pt / CFMs electrode catalytic performance can be attributed to the continuity of carbon fiber in the fiber membrane, carbon nanofibrous membrane high conductivity and Pt particles in close contact with the carbon fiber , Thereby increasing the utilization of Pt particles.