| 氯化钌氨作前驱体制备高活性的氨合成催化剂 |
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| 引用本文： | 倪军,王榕,林建新,魏可镁.氯化钌氨作前驱体制备高活性的氨合成催化剂[J].催化学报,2009,30(3). |
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| 作者姓名： | 倪军 王榕 林建新 魏可镁 |
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| 作者单位： | 福州大学化肥催化剂国家工程研究中心,福建福州,350002 |
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| 基金项目： | 国家自然科学基金，the National Science and Technology SupportProgram of China |
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| 摘 要： | 以氯化钌和水合肼反应制备了新型的氧化钌氨前驱体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%.
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| 关 键 词： | 氯化钌氨 前驱体 钌 负载型催化剂 氨合成 |
Ruthenium Ammonium Chloride as a Precursor for the Preparation of High Activity Catalysts for Ammonia Synthesis |
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| NI Jun,WANG Rong,LIN Jianxin,WEI Kemei.Ruthenium Ammonium Chloride as a Precursor for the Preparation of High Activity Catalysts for Ammonia Synthesis[J].Chinese Journal of Catalysis,2009,30(3). |
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| Authors: | NI Jun WANG Rong LIN Jianxin WEI Kemei |
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| Abstract: | Ruthenium ammonium chloride, Ru(NH3)5Cl3, was prepared by the chemical reaction of ruthenium chloride with hydrazine hydrate and used as a novel ruthenium precursor for the preparation of activated carbon (AC)-supported Ru catalysts for ammonia synthesis. The results from TEM and CO chemisorption show that the Ru nanoparticles on the RuN/AC catalyst prepared from the Ru(NH3)5Cl3 precursor have much higher dispersion and more uniform size distribution than that on the Ru/AC catalyst from the RuCl3 precursor. The activity of the RuN/AC catalyst for ammonia synthesis was increased by more than 10% compared with the Ru/AC catalyst under the reaction conditions of 10 MPa and 10 000 h-1. |
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| Keywords: | ruthenium ammonium chloride precursor ruthenium supported catalyst ammonia synthesis |
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