Ni-Zr-Al基非晶态合金催化剂的苯加氢催化性能  

Catalytic Performance of Ni Zr Al Amorphous Alloy Catalyst for Hydrogenation of Benzene

作　　者：张国胜[1] 沈宁福 

机构地区：[1]北京科技大学材料科学与工程学院

出　　处：《催化学报》2000年第1期67-67,共1页

基　　金：国家自然科学基金!资助项目(59771033)

摘　　要：利用快速凝固技术制备了Ｎｉ２３．３Ｚｒ６．７Ａｌ６４Ｃｕ２．３Ｃｅ３．７ 非晶态合金，用碱洗抽Ａｌ 的方法进行活化，制成了ＮｉＺｒ基非晶态合金催化剂（ Ａ＞５０ ｍ２／ｇ） ， 并考察了其对苯加氢反应的催化性能． 结果发现，这种新型催化材料的比活性高出常规Ｒａｎｅｙ Ｎｉ 催化剂约３７－５ ％ ． 反应动力学分析表明，苯加氢反应级数对氢基本上表现为一级，表观反应活化能约为３１－２ ｋＪ／ｍｏｌ， 并推导出苯加氢反应的动力学方程．In this paper, Ni 23.3 Zr 6.7 Al 64 Cu 2.3 Ce 3.7 amorphous alloy was prepared by rapid solidification and activated by leaching Al out, and thus Ni Zr based amorphous catalyst was obtained. Its BET specific surface area was above 50 m 2/g. The catalytic performance of the catalyst for hydrogenation of benzene was measured. It was found that the specific activity of the amorphous catalyst was 37 5% higher than that of the conventional Raney Ni catalyst. Kinetic analysis showed that the reaction order for hydrogen over amorphous catalyst is about one and the reaction activation energy is about 31 2 kJ/mol, thus the reaction rate equation can be deduced.

关 键 词：非晶态合金 苯加氢 合金催化剂 镍 铝 锆 

分 类 号：O643.38[理学—物理化学]