Monte Carlo simulation of hydrogen absorption in palladium and palladium-silver alloys

Hitoshi Kurokawa, Taku Nakayama, Yasunori Kobayashi, Ken Suzuki, Mutsumi Takahashi, Seiichi Takami, Momoji Kubo, Naotsugu Itoh, Parasuraman Selvam, Akira Miyamoto

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

A modified Monte Carlo (MC) simulation was performed to investigate the hydrogen absorption behavior in Pd and Pd-Ag alloys of the composition PdxAg1-x (x = 0.7-0.8) under H2 pressure (0.1MPa) at different temperatures. The present method employed can consider the dissociative adsorption of hydrogen molecule and the subsequent absorption of hydrogen atom by formalizing the relationship between the pressure of hydrogen molecule and hydrogen atom. The potential parameters were determined to reproduce the solution enthalpy of hydrogen in pure metals. The results are in good agreement with experimental findings as well as previous theoretical studies. We confirmed that our method is useful to simulate the absorption of hydrogen in metals and alloys.

Original languageEnglish
Pages (from-to)233-240
Number of pages8
JournalCatalysis Today
Volume82
Issue number1-4
DOIs
Publication statusPublished - 2003 Jul 30

Keywords

  • Hydrogen absorption
  • Monte Carlo simulation
  • Palladium
  • Palladium-silver alloy

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

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