Pd/γ-Al_2O_3催化剂上甲烷-氘化氢之间的氢氘交换性能研究  

Catalytic Exchange Performance of Hydrogen-Deuterium and Methane over Pd/γ-Al_2O_3 Catalyst

作　　者：韩军[1] 官锐[1] 胡胜[1] 任兴碧[1] 熊亮萍[1] 

机构地区：[1]中国工程物理研究院核物理与化学研究所,四川绵阳621900

出　　处：《稀有金属材料与工程》2012年第1期64-68,共5页Rare Metal Materials and Engineering

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。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.

关 键 词：钯催化剂 甲烷 氢氘交换 

分 类 号：TL621[核科学技术—核技术及应用]