Absorption of D in the H + D/Pd(100) reaction

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

doi:10.1016/S0039-6028(98)90410-1

Absorption of D in the H + D/Pd(100) reaction

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

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

We have found a new elementary reaction process for the H(g) + D(a) system: a H(g) atom (T_gas=1800 K) impinging on the D-saturated Pd(100) surface (T_surf=105 K) forces a preadsorbed D(a) atom to be absorbed into the bulk. Neither direct absorption of H(g) nor abstraction was observed. The mechanism of the absorption is discussed, and a "stamping" model is proposed. A marked difference in the reaction selectivity with the results previously reported for Cu and Ni surfaces is discussed in terms of the peculiarity of the potential energy surface and dynamics of the H₂/M system.

Original language	English
Pages (from-to)	L849-L854
Journal	Surface Science
Volume	411
Issue number	1-2
DOIs	https://doi.org/10.1016/S0039-6028(98)90410-1
Publication status	Published - Aug 11 1998
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

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10.1016/S0039-6028(98)90410-1

Cite this

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abstract = "We have found a new elementary reaction process for the H(g) + D(a) system: a H(g) atom (Tgas=1800 K) impinging on the D-saturated Pd(100) surface (Tsurf=105 K) forces a preadsorbed D(a) atom to be absorbed into the bulk. Neither direct absorption of H(g) nor abstraction was observed. The mechanism of the absorption is discussed, and a {"}stamping{"} model is proposed. A marked difference in the reaction selectivity with the results previously reported for Cu and Ni surfaces is discussed in terms of the peculiarity of the potential energy surface and dynamics of the H2/M system.",

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TY - JOUR

T1 - Absorption of D in the H + D/Pd(100) reaction

AU - Okuyama, H.

AU - Nakagawa, T.

AU - Siga, W.

AU - Takagi, N.

AU - Nishijima, M.

AU - Aruga, T.

PY - 1998/8/11

Y1 - 1998/8/11

N2 - We have found a new elementary reaction process for the H(g) + D(a) system: a H(g) atom (Tgas=1800 K) impinging on the D-saturated Pd(100) surface (Tsurf=105 K) forces a preadsorbed D(a) atom to be absorbed into the bulk. Neither direct absorption of H(g) nor abstraction was observed. The mechanism of the absorption is discussed, and a "stamping" model is proposed. A marked difference in the reaction selectivity with the results previously reported for Cu and Ni surfaces is discussed in terms of the peculiarity of the potential energy surface and dynamics of the H2/M system.

AB - We have found a new elementary reaction process for the H(g) + D(a) system: a H(g) atom (Tgas=1800 K) impinging on the D-saturated Pd(100) surface (Tsurf=105 K) forces a preadsorbed D(a) atom to be absorbed into the bulk. Neither direct absorption of H(g) nor abstraction was observed. The mechanism of the absorption is discussed, and a "stamping" model is proposed. A marked difference in the reaction selectivity with the results previously reported for Cu and Ni surfaces is discussed in terms of the peculiarity of the potential energy surface and dynamics of the H2/M system.

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DO - 10.1016/S0039-6028(98)90410-1

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VL - 411

SP - L849-L854

JO - Surface Science

JF - Surface Science

IS - 1-2

ER -

Absorption of D in the H + D/Pd(100) reaction

Abstract

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