Reactions of propane with CO2 over Au catalysts

被引：25

作者：

Toth, Anita ^{[1
]}

Halasi, Gyula ^{[1
]}

Bansagi, Tamas ^{[1
]}

Solymosi, Frigyes ^{[1
]}

机构：

[1] MTA SZTE React Kinet & Surface Chem Res Grp, Rerrich Bela Ter 1, H-6720 Szeged, Hungary

来源：

JOURNAL OF CATALYSIS | 2016年 / 337卷

关键词：

IR spectra of adsorbed C3H8; Reactions of C3H8; Reactions of CO2 with C3H8; Supported Au catalyst; Electronic interaction between Au and ZnO; OXIDATIVE DEHYDROGENATION; CARBON-DIOXIDE; GOLD; PROPYLENE; OXIDE; HYDROGENATION; ADSORPTION; IODIDE; COPPER; SILVER;

D O I：

10.1016/j.jcat.2016.01.029

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：

The decomposition of C3H8 and its reaction with CO2 have been investigated on Au deposited on ZnO, MgO and Al2O3. The reactions proceeded above 650-700 K. The conversion-of C3H8 was only few percents on Au/MgO and Au/Al2O3, even at 873 K, but reached similar to 17% on Au/ZnO. The selectivity of propylene formation was about 56%. CO2 only slightly affected the reaction of C3H8 on Au/Al2O3 and Au/MgO, but significantly enhanced the conversion of C3H8 on Au/ZnO catalyst. The formation of large amount of CO indicates the involvement of CO2 in the reaction of C3H8. From the product distribution it was inferred that beside the oxidative dehydrogenation and dry reforming reaction, the decomposition of C3H8 into CH4 and surface carbon also occurred. The effect of ZnO is explained by an electronic interaction between n-type ZnO and Au particles leading to a formation of reactive CO2-. (C) 2016 Elsevier Inc. All rights reserved.

引用

页码：57 / 64

页数：8

共 33 条

[1] Dry reforming of methane over CeO2 supported Ni, Co and Ni-Co catalysts [J].

Ay, Hale ;

Uner, Deniz .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2015, 179 :128-138

[2]

Baiker A, 1993, STUD SURF SCI CATAL, P1257

[3] Mimicking aspects of heterogeneous catalysis: Generating, isolating, and reacting proposed surface intermediates on single crystals in vacuum [J].

Bent, BE .

CHEMICAL REVIEWS, 1996, 96 (04) :1361-1390

[4]

Bibby D. M., 1998, METHANE CONVERSION S, V36

[5] CONTROLLING SELECTIVITY IN ALKYL OXIDATION WITH OXYGEN COVERAGE - THE REACTIONS OF ETHYL AND 2-PROPYL IODIDE ON OXYGEN-COVERED RH(111) [J].

BOL, CWJ ;

FRIEND, CM .

JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (31) :11930-11936

[6] CO2 reforming of CH4 [J].

Bradford, MCJ ;

Vannice, MA .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1999, 41 (01) :1-42

[7] Oxidation of propane to propylene oxide on gold catalysts [J].

Bravo-Suarez, Juan J. ;

Bando, Kyoko K. ;

Lu, Jiqing ;

Fujitani, Tadahiro ;

Oyama, S. Ted .

JOURNAL OF CATALYSIS, 2008, 255 (01) :114-126

[8] The adsorption and reactions of propyl iodide on clean and adsorbate-modified Mo2C/Mo(100) surfaces [J].

Bugyi, L ;

Oszkó, A ;

Solymosi, F .

SURFACE SCIENCE, 2002, 516 (1-2) :74-84

[9] Oxidative dehydrogenation of ethane and propane: How far from commercial implementation? [J].

Cavani, F. ;

Ballarini, N. ;

Cericola, A. .

CATALYSIS TODAY, 2007, 127 (1-4) :113-131

[10]

DENT AL, 1970, J AM CHEM SOC, V92, P6709

← 1 2 3 4 →