HREELS Study and Catalytic Significance of Low-Temperature Interaction of Isolated Carbon Atoms with Hydrogen on Pt(111)
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Catalysis Letters
ISSN: 1011-372X
, E-ISSN: 1572-879X
|
| Output data |
Year: 1991,
Volume: 8,
Number: 1,
Pages: 101-106
Pages count
: 6
DOI:
10.1007/BF00764386
|
| Authors |
Smirnov M.Yu.
1
,
Gall N.R.
2
,
Cholach A.R.
1
,
Gorodetskii V.V.
1
,
Tontegode A.Ya.
2
,
Rut'kov E.V.
2
,
Zemlyanov D.Yu.
1
|
| Affiliations |
| 1 |
Institute of Catalysis, Novosibirsk 630090, USSR
|
| 2 |
A.F. Ioffe Physical Technical Institute, Leningrad 194021, USSR
|
|
Isolated atoms of carbon evaporated on to Pt(111) react with hydrogen atT⩾170 K to form methine species, characterized with vibrational modes v(CH) at 2960 and δ(CH) at 800 cm−1. The high reactivity of Cads is in line with their ability to take part as intermediates in the metanation reaction. CHads species are stable up toT ≈ 500 K; further heating leads to their dissociation accompanied by H2 desorption and formation of unreactive graphite-like islands.