Thermal stability and reactions of CH2, CH3 and C2H5 species on the metal surfaces

被引:47
作者
Solymosi, F [1 ]
机构
[1] HUNGARIAN ACAD SCI,REACT KINET RES GRP,H-6701 SZEGED,HUNGARY
关键词
thermal stability of hydrocarbon fragments; metal surfaces;
D O I
10.1016/0920-5861(95)00242-1
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The results obtained on thermal stability and reactions of CyHy hydrocarbon fragments on metal surfaces are discussed. CxHy species are produced by thermal and photo-induced dissociation of corresponding iodo compounds. Whereas CH3 and CH2 are mainly converted into CH4 on Pt metals at 140-180 K, they recombine readily to yield C-2 compounds on Ag and Cu surfaces. The C2H5 reacted to form C2H4 and C2H6 on metal surfaces at 160-230 K. Effects of additives and coadsorbed species on the reactions of CxHy moieties are also examined.
引用
收藏
页码:193 / 203
页数:11
相关论文
共 44 条
[1]  
[Anonymous], J CATAL
[2]   LOW-TEMPERATURE CATALYTIC HOMOLOGATION OF METHANE ON PLATINUM, RUTHENIUM AND COBALT [J].
BELGUED, M ;
AMARIGLIO, H ;
PAREJA, P ;
AMARIGLIO, A ;
SAINTJUST, J .
CATALYSIS TODAY, 1992, 13 (2-3) :437-445
[3]   CONVERSION OF METHANE INTO HIGHER HYDROCARBONS ON PLATINUM [J].
BELGUED, M ;
PAREJA, P ;
AMARIGLIO, A ;
AMARIGLIO, H .
NATURE, 1991, 352 (6338) :789-790
[4]   ADSORPTION AND DISSOCIATION OF CH3CL ON CLEAN AND POTASSIUM-PROMOTED PD(100) SURFACES [J].
BERKO, A ;
SOLYMOSI, F .
JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (01) :12-14
[5]  
BIBBY DM, 1988, METHANE CONVERSION S, V36
[6]   THE EFFECTS OF PREADSORBED CO ON THE CHEMISTRY OF CH3 AND CH3I ON PD(111) [J].
CHEN, JJ ;
WINOGRAD, N .
SURFACE SCIENCE, 1994, 314 (02) :188-200
[7]   IODOMETHANE DECOMPOSITION ON CU(110) - SURFACE-REACTIONS OF C1 FRAGMENTS [J].
CHIANG, CM ;
WENTZLAFF, TH ;
BENT, BE .
JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (04) :1836-1848
[8]  
CHIANG CM, 1992, SURF SCI, V279, P79
[9]  
DEAK L, IN PRESS J CATAL
[10]  
DIAK L, IN PRESS LANGMUIR