催化学报

催化学报 ›› 2009, Vol. 30 ›› Issue (3): 185-190.

• 研究论文 • 上一篇    下一篇

氯化钌氨作前驱体制备高活性的氨合成催化剂

倪军, 王榕, 林建新, 魏可镁   

  1. 福州大学化肥催化剂国家工程研究中心, 福建福州 350002
  • 收稿日期:2009-03-25 出版日期:2009-03-25 发布日期:2012-12-19

Ruthenium Ammonium Chloride as a Precursor for the Preparation of High Activity Catalysts for Ammonia Synthesis

NI Jun, WANG Rong, LIN Jianxin, WEI Kemei*   

  1. National Research Center of Chemical Fertilizer Catalysts, Fuzhou University, Fuzhou 350002, Fujian, China
  • Received:2009-03-25 Online:2009-03-25 Published:2012-12-19

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摘要： 以氯化钌和水合肼反应制备了新型的氯化钌氨前驱体Ru(NH3)5Cl3. 透射电镜和CO化学吸附结果表明, 由Ru(NH3)5Cl3前驱体制备的活性炭(AC)负载的RuN/AC催化剂中, 钌纳米粒子分散度高, 粒径分布均匀. 与以氯化钌为前驱体制备的Ru/AC催化剂相比, RuN/AC催化剂具有更高的氨合成活性, 在10 MPa和10 000 h?1条件下活性增幅超过10%.

关键词: 氯化钌氨, 前驱体, 钌, 负载型催化剂, 氨合成

Abstract: The new precursor, Ru(NH3)5Cl3, gives a more than 10% increase in the activity of the RuN/AC catalyst for ammonia synthesis over the conventional catalyst Ru/AC prepared from the RuCl3•nH2O precursor on activated carbon (AC) under the reaction conditions of 10 MPa and 10 000 h–1.

Key words: ruthenium ammonium chloride, precursor, ruthenium, supported catalyst, ammonia synthesis