New reaction channel in H(g) + D(a)/Pd(100): absorption versus abstraction

H. Okuyama; T. Nakagawa; W. Siga; N. Takagi; M. Nishijima; T. Aruga

doi:10.1016/S0039-6028(99)00279-4

New reaction channel in H(g) + D(a)/Pd(100): absorption versus abstraction

H. Okuyama, T. Nakagawa, W. Siga, N. Takagi, M. Nishijima, T. Aruga

Research output: Contribution to journal › Conference article › peer-review

Abstract

A study on the interaction of gas-phase atomic H(g) with D(a) atom chemisorbed on Pd(100) surface is presented. We found a new elementary reaction process: a H(g) atom at 1800 K impinging on the D(a)-saturated Pd(100) surface at 105 K forces a preadsorbed D(a) atom to be absorbed into a bulk site. Neither direct absorption of H(g) nor abstraction was observed, which were reported to occur at Ni surfaces. The mechanism of the absorption is discussed, and the 'stamping' model is proposed. A marked difference in the reaction selectivity with the case for Ni surface previously reported is discussed in terms of the potential energy surface.

Original language	English
Pages (from-to)	277-281
Number of pages	5
Journal	Surface Science
Volume	427-428
DOIs	https://doi.org/10.1016/S0039-6028(99)00279-4
Publication status	Published - Jun 1 1999
Externally published	Yes
Event	Proceedings of the 1998 9th International Conference on Vibrations at Surfaces (VAS9) - Kanagawa-ken, Jpn Duration: Oct 12 1998 → Oct 16 1998

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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title = "New reaction channel in H(g) + D(a)/Pd(100): absorption versus abstraction",

abstract = "A study on the interaction of gas-phase atomic H(g) with D(a) atom chemisorbed on Pd(100) surface is presented. We found a new elementary reaction process: a H(g) atom at 1800 K impinging on the D(a)-saturated Pd(100) surface at 105 K forces a preadsorbed D(a) atom to be absorbed into a bulk site. Neither direct absorption of H(g) nor abstraction was observed, which were reported to occur at Ni surfaces. The mechanism of the absorption is discussed, and the 'stamping' model is proposed. A marked difference in the reaction selectivity with the case for Ni surface previously reported is discussed in terms of the potential energy surface.",

author = "H. Okuyama and T. Nakagawa and W. Siga and N. Takagi and M. Nishijima and T. Aruga",

note = "Copyright: Copyright 2018 Elsevier B.V., All rights reserved.; Proceedings of the 1998 9th International Conference on Vibrations at Surfaces (VAS9) ; Conference date: 12-10-1998 Through 16-10-1998",

year = "1999",

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doi = "10.1016/S0039-6028(99)00279-4",

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TY - JOUR

T1 - New reaction channel in H(g) + D(a)/Pd(100)

T2 - Proceedings of the 1998 9th International Conference on Vibrations at Surfaces (VAS9)

AU - Okuyama, H.

AU - Nakagawa, T.

AU - Siga, W.

AU - Takagi, N.

AU - Nishijima, M.

AU - Aruga, T.

PY - 1999/6/1

Y1 - 1999/6/1

N2 - A study on the interaction of gas-phase atomic H(g) with D(a) atom chemisorbed on Pd(100) surface is presented. We found a new elementary reaction process: a H(g) atom at 1800 K impinging on the D(a)-saturated Pd(100) surface at 105 K forces a preadsorbed D(a) atom to be absorbed into a bulk site. Neither direct absorption of H(g) nor abstraction was observed, which were reported to occur at Ni surfaces. The mechanism of the absorption is discussed, and the 'stamping' model is proposed. A marked difference in the reaction selectivity with the case for Ni surface previously reported is discussed in terms of the potential energy surface.

AB - A study on the interaction of gas-phase atomic H(g) with D(a) atom chemisorbed on Pd(100) surface is presented. We found a new elementary reaction process: a H(g) atom at 1800 K impinging on the D(a)-saturated Pd(100) surface at 105 K forces a preadsorbed D(a) atom to be absorbed into a bulk site. Neither direct absorption of H(g) nor abstraction was observed, which were reported to occur at Ni surfaces. The mechanism of the absorption is discussed, and the 'stamping' model is proposed. A marked difference in the reaction selectivity with the case for Ni surface previously reported is discussed in terms of the potential energy surface.

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U2 - 10.1016/S0039-6028(99)00279-4

DO - 10.1016/S0039-6028(99)00279-4

M3 - Conference article

AN - SCOPUS:0033148663

VL - 427-428

SP - 277

EP - 281

JO - Surface Science

JF - Surface Science

SN - 0039-6028

Y2 - 12 October 1998 through 16 October 1998

ER -