TY - JOUR
T1 - Molecular dynamics study for dissociation phenomena of gas molecule on metal surface
AU - Tokumasu, Takashi
AU - Hara, Kanako
AU - Ito, Daigo
PY - 2008/3
Y1 - 2008/3
N2 - Dissociation phenomena of gas molecule on metal surface was analyzed by Molecular Dynamics Method. Platinum (111) surface and hydrogen were chosen to be the metal surface and the gas molecule, respectively. Embedded Atom Method was used as the interaction between the surface and the atoms in order to express the dependence of electron density. The parameters were determined so that the results such as the electron density, adsorption energy of an H atom on a Pt (111) surface and the interaction between H atoms of an H2 molecule obtained by EAM method were consistent with that obtained by Density Functional Theory or empirical function. Collisions of a hydrogen molecule with a Platinum surface were simulated by Molecular Dynamics method and the dissociation probability was obtained. Using the results, effect of motion of the surface atoms or the hydrogen molecule on the dissociation probability was analyzed.
AB - Dissociation phenomena of gas molecule on metal surface was analyzed by Molecular Dynamics Method. Platinum (111) surface and hydrogen were chosen to be the metal surface and the gas molecule, respectively. Embedded Atom Method was used as the interaction between the surface and the atoms in order to express the dependence of electron density. The parameters were determined so that the results such as the electron density, adsorption energy of an H atom on a Pt (111) surface and the interaction between H atoms of an H2 molecule obtained by EAM method were consistent with that obtained by Density Functional Theory or empirical function. Collisions of a hydrogen molecule with a Platinum surface were simulated by Molecular Dynamics method and the dissociation probability was obtained. Using the results, effect of motion of the surface atoms or the hydrogen molecule on the dissociation probability was analyzed.
KW - Catalyzer
KW - Density functional theory
KW - Dissociation
KW - Fuel cell
KW - Numerical simulation
KW - Thermal motion
UR - http://www.scopus.com/inward/record.url?scp=44949175073&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=44949175073&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:44949175073
SN - 0387-5016
VL - 74
SP - 684
EP - 691
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
IS - 3
ER -