Preparation of chlorine-free alumina-supported ruthenium catalyst for ammonia synthesis base on RuCl3 by hydrazine reduction

被引：64

作者：

Lin, Bingyu ^{[1
]}

Wang, Rong ^{[1
]}

Lin, Jianxin ^{[1
]}

Du, Shuwei ^{[1
]}

Yu, Xiujin ^{[1
]}

Wei, Kemei ^{[1
]}

机构：

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

来源：

CATALYSIS COMMUNICATIONS | 2007年 / 8卷 / 11期

基金：

中国国家自然科学基金;

关键词：

chlorine-free; Ru; ammonia synthesis; hydrazine reduction; supported catalysts;

D O I：

10.1016/j.catcom.2007.02.021

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of Ru/Al2O3 catalysts for ammonia synthesis were prepared by hydrazine reduction of RuCl3 in KOH solution under the mild conditions, and characterized by XRF, TEM and CO chemisorption. The results showed that no chloride remained on the catalysts obtained by hydrazine reduction and the activities of the catalysts with hydrazine treatment were higher than those of conventional hydrogen-reduced catalysts. The particles sizes and the activities of the catalysts were determined by the molar ratios between hydrazine and ruthenium. The most promising catalyst was obtained when the hydrazine/ruthenium ratio was in the range of 1-3. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：1838 / 1842

页数：5

共 29 条

[1] PREPARATION AND CHARACTERIZATION OF CHLORINE-FREE RUTHENIUM CATALYSTS AND THE PROMOTER EFFECT IN AMMONIA-SYNTHESIS .3. A MAGNESIA-SUPPORTED RUTHENIUM CATALYST [J].

AIKA, K ;

TAKANO, T ;

MURATA, S .

JOURNAL OF CATALYSIS, 1992, 136 (01) :126-140

[2] SUPPORT AND PROMOTER EFFECT OF RUTHENIUM CATALYST .1. CHARACTERIZATION OF ALKALI-PROMOTED RUTHENIUM ALUMINA CATALYSTS FOR AMMONIA-SYNTHESIS [J].

AIKA, K ;

SHIMAZAKI, K ;

HATTORI, Y ;

OHYA, A ;

OHSHIMA, S ;

SHIROTA, K ;

OZAKI, A .

JOURNAL OF CATALYSIS, 1985, 92 (02) :296-304

[3] SUPPORT AND PROMOTER EFFECT OF RUTHENIUM CATALYST .3. KINETICS OF AMMONIA-SYNTHESIS OVER VARIOUS RU CATALYSTS [J].

AIKA, K ;

KUMASAKA, M ;

OMA, T ;

KATO, O ;

MATSUDA, H ;

WATANABE, N ;

YAMAZAKI, K ;

OZAKI, A ;

ONISHI, T .

APPLIED CATALYSIS, 1986, 28 (1-2) :57-68

[4] HYDROGENOLYSIS OF HYDRAZINE OVER METALS [J].

AIKA, KI ;

OHHATA, T ;

OZAKI, A .

JOURNAL OF CATALYSIS, 1970, 19 (02) :140-&

[5] CHARACTERIZATION OF (BI) METALLIC (PT,RU) SUPPORTED CATALYSTS BY MEANS OF AN AUTOMATED CHROMATOGRAPHIC APPARATUS [J].

BLANCHARD, G ;

CHARCOSSET, H .

JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE, 1982, 79 (02) :189-194

[6] Relation between crystallite size and dispersion on supported metal catalysts [J].

Borodzinski, A ;

Bonarowska, M .

LANGMUIR, 1997, 13 (21) :5613-5620

[7]

Bossi A., 1979, STUD SURF SCI CATAL, V3, P405

[8] Study of nickel catalysts supported on silica of low surface area and prepared by reduction of nickel acetate in aqueous hydrazine [J].

Boudjahem, AG ;

Monteverdi, S ;

Mercy, M ;

Bettahar, MM .

JOURNAL OF CATALYSIS, 2004, 221 (02) :325-334

[9] Study of support effects on the reduction of Ni2+ ions in aqueous hydrazine [J].

Boudjahem, AG ;

Monteverdi, S ;

Mercy, M ;

Bettahar, MM .

LANGMUIR, 2004, 20 (01) :208-213

[10] Synthesis of nickel nanoparticles in water-in-oil microemulsions [J].

Chen, DH ;

Wu, SH .

CHEMISTRY OF MATERIALS, 2000, 12 (05) :1354-1360

← 1 2 3 →