A FT-IR study of the reactivity of tungsta-supported catalysts toward butan-2-ol

被引:11
作者
Carrazán, SRG [1 ]
Martín, C [1 ]
Solana, G [1 ]
Rives, V [1 ]
机构
[1] Univ Salamanca, Dept Quim Inorgan, E-37008 Salamanca, Spain
关键词
D O I
10.1021/la010428r
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The surface acid properties of WOx supported on different oxides (alumina, silica, magnesia, titania, zirconia, and niobia), as well as the decomposition of butan-2-ol on these systems, have been studied by FT-IR spectroscopy. Incorporation of supported tungsten-containing species significantly increases the surface acid properties, and new surface acid sites develop, except for in the magnesia-supported system. The increase in surface acidity is responsible for the high selectivity to butene formation on these systems, except for in the magnesia-supported system, where a larger selectivity to methyl ethyl ketone is observed.
引用
收藏
页码:6968 / 6973
页数:6
相关论文
共 38 条
[1]  
Bellamy L. J., 1954, The Infrared Spectra of Complex Molecules
[2]   IR study of alkene allylic activation on magnesium ferrite and alumina catalysts [J].
Busca, G ;
Finocchio, E ;
Lorenzelli, V ;
Trombetta, M ;
Rossini, SA .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1996, 92 (23) :4687-4693
[3]   ROLE OF WO3 IN MIXED V2O5-WO3/TIO2 CATALYSTS FOR SELECTIVE CATALYTIC REDUCTION OF NITRIC-OXIDE WITH AMMONIA [J].
CHEN, JP ;
YANG, RT .
APPLIED CATALYSIS A-GENERAL, 1992, 80 (01) :135-148
[4]   ACIDIC PROPERTIES OF BINARY OXIDE CATALYSTS .2. MOSSBAUER-SPECTROSCOPY AND PYRIDINE ADSORPTION FOR IRON SUPPORTED ON MAGNESIA, ALUMINA, AND TITANIA [J].
CONNELL, G ;
DUMESIC, JA .
JOURNAL OF CATALYSIS, 1986, 102 (01) :216-233
[5]   ACIDIC PROPERTIES OF BINARY OXIDE CATALYSTS .1. MOSSBAUER-SPECTROSCOPY AND PYRIDINE ADSORPTION FOR IRON SUPPORTED ON SILICA [J].
CONNELL, G ;
DUMESIC, JA .
JOURNAL OF CATALYSIS, 1986, 101 (01) :103-113
[6]   INFRARED STUDIES OF ADSORPTION AND SURFACE REACTIONS OF SOME SECONDARY ALCOHOLS, C3 TO C5, ON GAMMA-ALUMINA AND GAMMA-ALUMINA DOPED WITH SODIUM HYDROXIDE [J].
DEO, AV ;
CHUANG, TT ;
DALLALAN.IG .
JOURNAL OF PHYSICAL CHEMISTRY, 1971, 75 (02) :234-&
[7]   The universal character of the Mars and Van Krevelen mechanism [J].
Doornkamp, C ;
Ponec, V .
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2000, 162 (1-2) :19-32
[8]  
FIGUERAS F, 1969, J CATAL, V14, P107
[9]   TUNGSTEN-OXIDES AS CATALYSTS IN SELECTIVE OXIDATION [J].
HABER, J ;
JANAS, J ;
SCHIAVELLO, M ;
TILLEY, RJD .
JOURNAL OF CATALYSIS, 1983, 82 (02) :395-403
[10]  
HARRINSON WTA, 1985, J SOLID STATE CHEM, V82, P101