Study on the Chemisorption of H₂,N₂ Carbon-Supported Ruthenium Ammonia
Synthesis Catalyst by Pulse Chromatography

ZHU Yifeng, LI Xiaonian, HU Wei, LIU Huazhang
（Zhejiang Province Key Laboratory of Heterogeneous Catalysis, Institute of
Catalysis of Zhejiang University of Technology, Hangzhou 310032）

Abstract  A series of active carbon-supported ruthenium-based catalyst, promoted by alkali and alkaline earth nitrate and Sm₂O₃, were prepared and their activity of ammonia synthesis were evaluated. The chromatography retain parameter and chemisorption for H₂,N₂ on them was investigated by pulse chromatography technique. The results indicated that the chemisorption performance for H₂,N₂ affects the catalytic activity obviously. The effects of promoters were also discussed.
Key words  Pulse chromatography, Ruthenium, Ammonia synthesis, Chemisorption

脉冲色谱法研究钌基氨合成催化剂的氢氮吸附性能

祝一锋   李小年   胡 伟    刘化章
(浙江工业大学催化研究所 浙江省多相催化重点实验室 杭州 310032)

摘要   用浸渍法制备了系列活性炭负载的钌基氨合成催化剂，采取脉冲色谱技术测量氢氮在上述催化剂上的色谱保留参数和吸附量以考察催化剂对氢、氮的吸附性能。通过与相应的氨合成催化活性关联，研究了钌基催化剂高活性的原因，并讨论了各种助剂在催化剂中的作用。
关键词  脉冲色谱法  钌  氨合成催化剂   化学吸附

祝一锋 男，36岁，副教授，从事物理化学、工业催化和应用化学的教学与科研工作。
浙江省自然科学基金(299015)，浙江省青年科技人才培养专项基金(RC9702)和浙江省151人才专项资金资助项目
2000-12-21收稿，2001-04-02修回