Search for oscillations in the translational energy dependence of the dissociation of H 2 on Pd(100)
Recent calculations of the variation of the probability of dissociative chemisorption, S 0, of H 2 on Pd(100) and on W(100) predict distinct oscillations in this probability with increasing translational energy, E i, at low energy. We have searched for these oscillations in the H 2/Pd(100) system us...
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| Published in | Chemical physics letters Vol. 253; no. 3; pp. 236 - 240 |
|---|---|
| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier B.V
03.05.1996
|
| Online Access | Get full text |
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| Abstract | Recent calculations of the variation of the probability of dissociative chemisorption,
S
0, of H
2 on Pd(100) and on W(100) predict distinct oscillations in this probability with increasing translational energy,
E
i, at low energy. We have searched for these oscillations in the H
2/Pd(100) system using a novel molecular beam scattering method. No oscillations could be found. We find that
S
0 falls monotonically with increasing
E
i up to ∼0.1 eV. Any deviations from this monotonic fall represent changes in
S
0 of <1% and <3% for H
2(
J = 1,
v = 0) and H
2(
J = 0,
v = 0), respectively, at a surface temperature of 80 K. We discuss the possibility that surface motion is responsible for averaging away structure in
S
0 versus
E
i. |
|---|---|
| AbstractList | Recent calculations of the variation of the probability of dissociative chemisorption,
S
0, of H
2 on Pd(100) and on W(100) predict distinct oscillations in this probability with increasing translational energy,
E
i, at low energy. We have searched for these oscillations in the H
2/Pd(100) system using a novel molecular beam scattering method. No oscillations could be found. We find that
S
0 falls monotonically with increasing
E
i up to ∼0.1 eV. Any deviations from this monotonic fall represent changes in
S
0 of <1% and <3% for H
2(
J = 1,
v = 0) and H
2(
J = 0,
v = 0), respectively, at a surface temperature of 80 K. We discuss the possibility that surface motion is responsible for averaging away structure in
S
0 versus
E
i. |
| Author | Auerbach, D.J. Rettner, C.T. |
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| Copyright | 1996 |
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| DOI | 10.1016/0009-2614(96)00253-9 |
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| References | King (BIB9) 1978; 7 Luntz, Harris (BIB17) 1991; 258 Rettner, Schweizer, Stein (BIB2) 1990; 93 Rettner, Michelsen, Auerbach (BIB14) 1993; 175 Marinero, Rettner, Zare (BIB15) 1982; 48 Kay, Darling, Holloway, White, Bird (BIB11) 1995; 245 Mullins, Weinberg (BIB4) 1990; 92 Luntz, Williams, Bethune (BIB3) 1988; 89 Gross, Wilke, Scheffler (BIB10) 1995; 75 Rettner, Auerbach, Michelsen (BIB13) 1992; 68 Berger, Resch, Grösslinger, Eilmsteiner, Winkler, Rendulic (BIB7) 1992; 275 Rettner, DeLouise, Auerbach (BIB16) 1986; 85 Gross (BIB12) 1995; 102 Rettner, Stein, Schweizer, Auerbach (BIB5) 1988; 61 Butler, Hayden, Jones (BIB8) 1994; 217 Auerbach, Rettner (BIB1) 1987 Rendulic, Anger, Winkler (BIB6) 1989; 208 |
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| Snippet | Recent calculations of the variation of the probability of dissociative chemisorption,
S
0, of H
2 on Pd(100) and on W(100) predict distinct oscillations in... |
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| Title | Search for oscillations in the translational energy dependence of the dissociation of H 2 on Pd(100) |
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