Selective photo-oxidation of neat cyclohexane in the liquid phase over V2O5/Al2O3

被引：58

作者：

Teramura, K ^{[1
]}

Tanaka, T ^{[1
]}

Kani, M ^{[1
]}

Hosokawa, T ^{[1
]}

Funabiki, T ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Engn, Dept Mol Engn, Kyoto 6158510, Japan

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2004年 / 208卷 / 1-2期

关键词：

cyclohexane; selective oxidation; V2O5/Al2O3; photocatalyst;

D O I：

10.1016/S1381-1169(03)00544-2

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：

V2O5/Al2O3 exhibits the high selectivity to partial oxidation compounds (cyclohexanol and cyclohexanone) as compared with TiO2 in the photo-oxidation of cyclohexane in the liquid phase. This reaction is an environmentally friendly reaction since it proceeds at ambient temperature and atmospheric pressure without a solvent. The features of the reaction are a high selectivity to partial oxidation products and a reasonable ketone/alcohol ratio (K/A ratio). However, by elongation of the photoirradiation time, cyclohexyl hexanoate as a by-product was generated and the K/A ratio decreased gradually. Retention of the high O-2 concentration in the gas phase and irradiation of light lambda > 330 nm are keys to the selective formation of the partial oxidation compounds with a reasonable K/A ratio in the photo-oxidation of cyclohexane over V2O5/Al2O3. In the present study, a selectivity of 87% to the partial oxidation compounds was achieved with the K/A ratio of 3.8. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：299 / 305

页数：7

共 48 条

[1] PHOTOOXIDATION OF HYDROCARBONS ON PORPHYRIN-MODIFIED TITANIUM-DIOXIDE POWDERS [J].

AMADELLI, R ;

BREGOLA, M ;

POLO, E ;

CARASSITI, V ;

MALDOTTI, A .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1992, (18) :1355-1357

[2] PHOTO-LUMINESCENCE AND PHOTO-REDUCTION OF V2O5 SUPPORTED ON POROUS VYCOR GLASS [J].

ANPO, M ;

TANAHASHI, I ;

KUBOKAWA, Y .

JOURNAL OF PHYSICAL CHEMISTRY, 1980, 84 (25) :3440-3443

[3] Activities and stabilities of heterogeneous catalysts in selective liquid phase oxidations: recent developments [J].

Arends, IWCE ;

Sheldon, RA .

APPLIED CATALYSIS A-GENERAL, 2001, 212 (1-2) :175-187

[4]

Bellussi G., 2000, CATTECH, V4, P4, DOI DOI 10.1023/A:1011905009608

[5] Photocatalytic oxygenation of cyclohexane on titanium dioxide suspensions: Effect of the solvent and of oxygen [J].

Boarini, P ;

Carassiti, V ;

Maldotti, A ;

Amadelli, R .

LANGMUIR, 1998, 14 (08) :2080-2085

[6] INDUSTRIAL-PRODUCTION AND USE OF ADIPIC ACID [J].

CASTELLAN, A ;

BART, JCJ ;

CAVALLARO, S .

CATALYSIS TODAY, 1991, 9 (03) :237-254

[7] New possibilities and opportunities for basic and applied research on selective oxidation by solid catalysts: an overview [J].

Centi, G ;

Misono, M .

CATALYSIS TODAY, 1998, 41 (04) :287-296

[8] Photocatalytic selective oxidation of hydrocarbons in the aqueous phase [J].

Gonzalez, MA ;

Howell, SG ;

Sikdar, SK .

JOURNAL OF CATALYSIS, 1999, 183 (01) :159-162

[9] LUMINESCENCE STUDY OF PHOTOREDUCTION OF VANADIUM(V) SUPPORTED ON SILICA-GEL [J].

GRITSCOV, AM ;

SHVETS, VA ;

KAZANSKY, VB .

CHEMICAL PHYSICS LETTERS, 1975, 35 (04) :511-512

[10]

GRITSKOV AM, 1974, KINET KATAL, V15, P1257

← 1 2 3 4 5 →