Propyne and 1,3-butadiene adsorption and co-adsorption over palladium catalysts

被引：1

作者：

Burns, Sh. ^{[1
]}

Jackson, S. D. ^{[1
]}

Vass, E. M. ^{[1
]}

机构：

[1] Univ Glasgow, Ctr Catalysis Res, WestCHEM, Sch Chem, Glasgow G12 8QQ, Lanark, Scotland

来源：

KINETICS AND CATALYSIS | 2011年 / 52卷 / 05期

关键词：

ALUMINA-SUPPORTED PALLADIUM; UNSATURATED-HYDROCARBONS; PLATINUM CATALYSTS; METAL-CATALYSTS; SELECTIVE HYDROGENATION; SINGLE-CRYSTALS; CARBON-MONOXIDE; PT(111); NICKEL; ETHYNE;

D O I：

10.1134/S0023158411050053

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 adsorption of propyne, 1,3-butadiene and the co-adsorption of propyne and 1,3-butadiene has been studied over a series of palladium catalysts. The adsorption of propyne shows a "secondary" adsorption region typical of hydrocarbon adsorption over supported metal catalysts. Hydrogenation occurs via the hydrogen associated with the beta-palladium hydride formed during reduction. A support effect is seen with the titania support reducing the stability of the palladium hydride resulting in a lower hydrogen concentration in the titania supported hydrides. The behaviour of 1,3-butadiene is similar to that found with propyne. The catalyst with the lowest dispersion, as measured by carbon monoxide adsorption, has the highest butadiene adsorption and vice versa, whereas propyne adsorption followed the same trend as carbon monoxide. This behaviour is linked to the mode of adsorption and site requirements. Sequential adsorption revealed that the catalysts had sites that were specific to each adsorbate. Co-adsorption revealed a reduction in adsorption for both gases but with a larger reduction for 1,3-butadiene due to site requirements.

引用

页码：723 / 732

页数：10

共 32 条

[1] HYDROGENATION OF ACETYLENE OVER SUPPORTED METAL-CATALYSTS .1. ADSORPTION OF [C-14]ACETYLENE AND [C-14]ETHYLENE ON SILICA SUPPORTED RHODIUM, IRIDIUM AND PALLADIUM AND ALUMINA SUPPORTED PALLADIUM [J].

ALAMMAR, AS ;

WEBB, G .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1978, 74 :195-205

[2] HYDROGENATION OF ACETYLENE OVER SUPPORTED METAL-CATALYSTS .4. [C-14]TRACER STUDIES OF THE REACTION CATALYZED BY NICKEL SILICA [J].

BERNDT, GF ;

THOMSON, SJ ;

WEBB, G .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1983, 79 :195-207

[3] A comparative study of 1,3-butadiene and 1-butene chemisorbed on Pt(111), and Pd(111) [J].

Bertolini, JC ;

Cassuto, A ;

Jugnet, Y ;

Massardier, J ;

Tardy, B ;

Tourillon, G .

SURFACE SCIENCE, 1996, 349 (01) :88-96

[4] The role of destabilization of palladium hydride in the hydrogen uptake of Pd-containing activated carbons [J].

Bhat, V. V. ;

Contescu, C. I. ;

Gallego, N. C. .

NANOTECHNOLOGY, 2009, 20 (20)

[5] HYDROGENATION OF HIGHLY UNSATURATED-HYDROCARBONS OVER HIGHLY DISPERSED PALLADIUM CATALYST .1. BEHAVIOR OF SMALL METAL PARTICLES [J].

BOITIAUX, JP ;

COSYNS, J ;

VASUDEVAN, S .

APPLIED CATALYSIS, 1983, 6 (01) :41-51

[6] Selective hydrogenation of ethyne in ethene-rich streams on palladium catalysts. Part 1. Effect of changes to the catalyst during reaction [J].

Borodzinki, Andrzej .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 2006, 48 (02) :91-144

[7] MECHANISM AND KINETICS OF THE SELECTIVE HYDROGENATION OF ETHYNE AND ETHENE [J].

BOS, ANR ;

WESTERTERP, KR .

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, 1993, 32 (01) :1-7

[8] RAIRS of small alkynes on Pd(100) [J].

Camplin, JP ;

Eve, JK ;

McCash, EM .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2000, 2 (19) :4433-4440

[9] RADIOCHEMICAL STUDIES OF CHEMISORPTION AND CATALYSIS .7. DIRECT OBSERVATION OF ETHYLENE-C14 BEHAVIOR ON NICKEL RHODIUM PALLADIUM IRIDIUM AND PLATINUM DURING CHEMISORPTION AND HYDROGENATION [J].

CORMACK, D ;

THOMSON, SJ ;

WEBB, G .

JOURNAL OF CATALYSIS, 1966, 5 (02) :224-&

[10] Hydrogenation on metal surfaces: Why are nanoparticles more active than single crystals? [J].

Doyle, AM ;

Shaikhutdinov, SK ;

Jackson, SD ;

Freund, HJ .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (42) :5240-5243

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