Abstract
In situ diffuse reflectance infrared spectroscopy of CO adsorption on reduced Ru/ZSM-5 reveals that, under appropriate conditions, in addition to the linearly adsorbed CO on metallic Ru particles (at 2045 ± 10 cm−1), two multicarbonyls involving oxidized Ru can be generated. These multicarbonyl species are characterized by IR doublets at 2080 and 2138 cm−1 and at 2086 and 2150 cm−1, respectively. Direct evidence for the consumption of both types of the ZSM-5 surface hydroxyl groups (silanol and Brønsted) during the oxidative adsorption of CO has been obtained. Each of these two OH types is believed to be associated with one of the multicarbonyl species.
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References
1.
Anderson
R. B.
, The Fischer-Tropsch Synthesis (Academic Press , Orlando, Florida , 1984 ).
2.
Forzatti
P.
Tronconi
E.
and
Pasquon
I
, Catal. Rev.-Sci. Eng. 33 , 109 (1991 ), and reference therein.
3.
Betta
R. A. Dalla
, J. Phys. Chem. 79 , 2519 (1975 ).
4.
Brown
M. F.
and
Gonzalez
R. D
, J. Phys. Chem. 80 , 1731 (1976 ).
5.
Betta
R. A. Dalla
and
Shelef
M
, J. Catal. 48 , 111 (1977 ).
6.
Goodwin
J. G.
Jr.
, and
Naccache
C.
, J. Catal. 64 , 482 (1980 ).
7.
Davydov
A. A.
and
Bell
A. T
, J. Catal. 49 , 332 (1977 ).
8.
Chen
H.-W.
Zhong
Z.
and
White
J. M
, J. Catal. 90 , 119 (1984 ).
9.
Yokomizo
G. H.
Louis
C.
and
Bell
A. T
, J. Catal. 120 , 1 (1989 ).
10.
Solymosi
F.
and
Rasko
J
, J. Catal. 115 , 107 (1989 ).
11.
Robbins
J. L.
, J. Catal. 115 , 120 (1989 ).
12.
Primet
M.
, J. Chem. Soc., Faraday Trans. I , 74 , 2570 (1978 ).
13.
Van't Blik
H. F. J.
Van Zon
J. B. A. D.
Huizinga
T.
Vis
J. C.
Koningsberger
D. C.
and
Prins
R
, J. Phys. Chem. 87 , 2264 (1983 ).
14.
Solymosi
F.
and
Pasztor
M
, J. Phys. Chem. 90 , 5312 (1986 ).
15.
Basu
P.
Panayotov
D.
Yates
J. T.
Jr.
, J. Phys. Chem. 91 , 3133 (1987 ).
16.
Basu
P.
Panayotov
D.
Yates
J. T.
Jr.
, J. Am. Chem. Soc. 110 , 2074 (1988 ).
17.
Mizushima
T.
Tohji
K.
Udagawa
Y.
and
Ueno
A
, J. Phys. Chem. 94 , 4980 (1990 ).
18.
Bergeret
G.
Gallezot
P.
Gelin
P.
Ben Taarit
Y.
Lefebvre
F.
Naccache
C.
and
Shannon
R. D
, J. Catal. 104 , 279 (1987 ).
19.
Lefebvre
F.
and
Ben Taarit
Y
, Nouv. J. Chim. 8 , 387 (1984 ).
20.
Burkhardt
I.
Gutschick
D.
Lohse
U.
and
Miessner
H
, J. Chem. Soc., Chem. Commun. , 291 (1987 ).
21.
Wardinsky
M. D.
and
Hecker
W. C
, J. Phys. Chem. 92 , 2602 (1988 ).
22.
Shen
J. Y.
Sayari
A.
and
Kaliaguine
S
, Appl. Spectrosc. 46 , 1288 (1992 ).
23.
Lemay
G.
Kaliaguine
S.
Adnot
A.
Nahar
S.
and
Cozak
D
, Can. J. Chem. 64 , 1943 (1986 ).
24.
Sayari
A.
Wang
H. T.
Goodwin
J. G.
Jr.
, J. Catal. 93 , 368 (1985 ).
25.
Burkhardt
I.
Gutschick
D.
Landmesser
H.
and
Miessner
H
, Stud. Surf. Sci. Catal. 69 , 215 (1991 ).
26.
Yamasaki
H.
Kobori
Y.
Naito
S.
Onishi
T.
and
Tamaru
K
, J. Chem. Soc., Faraday Trans. I , 77 , 2913 (1981 ).
27.
Guglielminotti
E.
Zecchina
A.
Bossi
A.
and
Camia
M
, J. Catal. 74 , 252 (1982 ), and reference therein.
28.
Lei
G. D.
and
Kevan
L
, J. Phys. Chem. 95 , 4506 (1991 ).
29.
Kiss
J. T.
and
Gonzalez
R. D
, J. Phys. Chem. 88 , 892 (1984 ).
30.
Stoop
F.
Toolenaar
F. J. C. M.
and
Ponec
V
, J. Catal. 73 , 50 (1982 ).
31.
Crossley
A.
and
King
D. A
, Surf. Sci. 95 , 131 (1980 ).
32.
Yokomizo
G. H.
Louis
C.
and
Bell
A. T
, J. Catal. 120 , 15 (1989 ).
33.
Shen
J. Y.
Adnot
A.
and
Kaliaguine
S
, Appl. Surf. Sci. 51 , 47 (1991 ).
34.
Wise
H.
and
McCarty
J. G
, Surf. Sci. 133 , 311 (1983 ).
35.
Shincho
E.
Egawa
C.
Naito
S.
and
Tamaru
K
, Surf. Sci. 155 , 153 (1985 ).
36.
Shen
J. Y.
Sayari
A.
and
Kaliaguine
S
, unpublished data .
37.
Ponec
V.
, Catalysis, Specialist Periodical Reports (Royal Society of Chemistry , Oxford , 1982 ), Vol. 5 , pp. 49 –79 .
38.
Gates
B. C.
Katzer
J. R.
and
Schuit
G. C. A
, Chemistry of Catalytic Processes (McGraw Hill , New York , 1979 ).
39.
Emsket
J.
, The Elements (Clarendon Press , Oxford , 1989 ).
40.
Buchanan
D. A.
Hernandez
M. E.
Solymosi
F.
and
White
J. M
, J. Catal. 125 , 456 (1990 ).