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

被引：11

作者：

Ni Jun ^{[1
]}

Wang Rong ^{[1
]}

Lin Jianxin ^{[1
]}

Wei Kemei ^{[1
]}

机构：

[1] Fuzhou Univ, Natl Res Ctr Chem Fertilizer Catalysts, Fuzhou 350002, Fujian, Peoples R China

来源：

CHINESE JOURNAL OF CATALYSIS | 2009年 / 30卷 / 03期

基金：

中国国家自然科学基金;

关键词：

ruthenium ammonium chloride; precursor; ruthenium; supported catalyst; ammonia synthesis; ACTIVATED CARBONS; RU/C CATALYSTS; BARIUM; SUPPORT; KINETICS; PROMOTERS; DESORPTION; CESIUM; BASE; CS;

D O I：

10.1016/S1872-2067(08)60096-0

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Ruthenium ammonium chloride, Ru(NH3)(5)Cl-3, 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)(5)Cl-3 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).

引用

页码：185 / 190

页数：6

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