【摘要】 利用浸渍法制备了Pd/γ-Al2O3催化剂,采用X射线粉末衍射(XRD)、X光电子能谱(XPS)和程序升温还原(TPR)等物理化学手段对其进行了表征,并在固定床微型反应器上考察了其催化活性。实验结果表明,载体内部有Pd元素,Pd和载体γ-Al2O3发生了强相互作用。在对甲烷与氘化氢间的氢氘交换反应中,Pd/γ-Al2O3催化剂显示出较好的催化活性。更多还原

【Abstract】 The Pd/γ-Al2O3 catalyst was prepared by a dipping method.The catalyst was characterized by X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS) and temperature programmed reduction(TPR).The catalytic properties of the Pd/γ-Al2O3 catalyst for the hydrogen-deuterium exchange of methane were tested with a fixed-bed micro-reactor.The results indicate that the Pd atoms are in the support interior of the Pd/γ-Al2O3 catalyst and the strong interaction between Pd and the support on the Pd/γ-Al2O3 catalyst occurs.The Pd/γ-Al2O3 catalyst possesses high catalytic activity in the hydrogen-deuterium exchange of methane.更多还原