Co-support compound formation in titania-supported cobalt catalyst

被引：68

作者：

Jongsomjit, B ^{[1
]}

Sakdamnuson, C

Goodwin, JG

Praserthdam, P

机构：

[1] Chulalongkorn Univ, Fac Engn, Dept Chem Engn, Ctr Excellence Catalysis & Catalyt React Engn, Bangkok 10330, Thailand

[2] Clemson Univ, Dept Chem Engn, Clemson, SC 29634 USA

来源：

CATALYSIS LETTERS | 2004年 / 94卷 / 3-4期

关键词：

supported catalyst; cobalt catalyst; cobalt-support compound; titania support; Co/TiO2; reducibility; CO hydrogenation;

D O I：

10.1023/B:CATL.0000020548.07021.ec

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：

Co-support compound formation (Co-SCF) in Co/TiO2 was found during standard reduction resulting in a lower reducibility of the catalyst. The compound formed is considered to be non-reducible at temperatures < 800 degrees C during TPR and different from CoTiO3. The characteristics of Co-SCF were investigated using BET surface area, XRD, Raman spectroscopy, SEM/EDX, and TPR.

引用

页码：209 / 215

页数：7

共 30 条

[1] TEMPERATURE-PROGRAMMED REDUCTION OF COO/AL2O3 CATALYSTS [J].

ARNOLDY, P ;

MOULIJN, JA .

JOURNAL OF CATALYSIS, 1985, 93 (01) :38-54

[2] ON THE MECHANISM OF THE FISCHER-TROPSCH REACTION - THE CHAIN PROPAGATION STEP [J].

BRADY, RC ;

PETTIT, R .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1981, 103 (05) :1287-1289

[3] PHASE RELATIONS AND STABILITIES OF COMPOUNDS IN SYSTEM COO-TIO2 [J].

BREZNY, B ;

MUAN, A .

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1969, 31 (03) :649-&

[4] Characterization and comparison of the activity of boron-modified Co/TiO2 catalysts in butan-2-ol conversion and oxidative dehydrogenation of ethane [J].

Brik, Y ;

Kacimi, M ;

Bozon-Verduraz, F ;

Ziyad, M .

JOURNAL OF CATALYSIS, 2002, 211 (02) :470-481

[5] Titania-supported cobalt and cobalt-phosphorus catalysts: Characterization and performances in ethane oxidative dehydrogenation [J].

Brik, Y ;

Kacimi, M ;

Ziyad, M ;

Bozon-Verduraz, F .

JOURNAL OF CATALYSIS, 2001, 202 (01) :118-128

[6] Effect of boron source on the catalyst reducibility and Fischer-Tropsch synthesis activity of Co/TiO2 catalysts [J].

Coville, NJ ;

Li, J .

CATALYSIS TODAY, 2002, 71 (3-4) :403-410

[7] Fe:Co/TiO2 bimetallic catalysts for the Fischer-Tropsch reaction Part 2.: The effect of calcination and reduction temperature [J].

Duvenhage, DJ ;

Coville, NJ .

APPLIED CATALYSIS A-GENERAL, 2002, 233 (1-2) :63-75

[8] Reaction and surface characterization studies of titania-supported Co, Pt and Co/Pt catalysts for the selective oxidation of CO in H2-containing streams [J].

Epling, WS ;

Cheekatamarla, PK ;

Lane, AM .

CHEMICAL ENGINEERING JOURNAL, 2003, 93 (01) :61-68

[9] TPR study of the mechanism of rhenium promotion of alumina-supported cobalt Fischer-Tropsch catalysts [J].

Hilmen, AM ;

Schanke, D ;

Holmen, A .

CATALYSIS LETTERS, 1996, 38 (3-4) :143-147

[10] Design, synthesis, and use of cobalt-based Fischer-Tropsch synthesis catalysts [J].

Iglesia, E .

APPLIED CATALYSIS A-GENERAL, 1997, 161 (1-2) :59-78

← 1 2 3 →