TY - JOUR
T1 - Structure and Catalysis of Rh-Pt(100), Rh-Pt(110), Pt-Rh(100), and Pt-Rh(110) Surfaces Prepared by Electrochemical Metal Deposition
AU - Tanaka, K.
AU - Okawa, Y.
AU - Sasahara, A.
AU - Matsumoto, Y.
PY - 1997
Y1 - 1997
N2 - Structure and catalysis of Rh/Pt(100), Rh/Pt(110), Pt/Rh(100) and Pt/Rh(110) surfaces prepared by electrochemical deposition were studied. Rh/Pt(100) heated in O2 at T > 340 K gives a clear p(3×1) LEED pattern. Similar p(3×1) structure is established on Pt/Rh(100) by heating in O2 at ca. 600 K. Catalytic activity for NO + H2 is markedly enhanced by the formation of p(3×1) structure. Rh/Pt(110) and Pt/Rh(100) surfaces are also activated by the chemical reconstruction caused by O2 or NO. STM image proved that the p(3×1) Pt0.25Rh0.75(100) surface is composed of combined array of one Rh-O and two Pt rows along the 〈011〉 directions, which is responsible for catalysis of NO + H2 reaction.
AB - Structure and catalysis of Rh/Pt(100), Rh/Pt(110), Pt/Rh(100) and Pt/Rh(110) surfaces prepared by electrochemical deposition were studied. Rh/Pt(100) heated in O2 at T > 340 K gives a clear p(3×1) LEED pattern. Similar p(3×1) structure is established on Pt/Rh(100) by heating in O2 at ca. 600 K. Catalytic activity for NO + H2 is markedly enhanced by the formation of p(3×1) structure. Rh/Pt(110) and Pt/Rh(100) surfaces are also activated by the chemical reconstruction caused by O2 or NO. STM image proved that the p(3×1) Pt0.25Rh0.75(100) surface is composed of combined array of one Rh-O and two Pt rows along the 〈011〉 directions, which is responsible for catalysis of NO + H2 reaction.
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U2 - 10.1021/bk-1997-0656.ch018
DO - 10.1021/bk-1997-0656.ch018
M3 - Article
AN - SCOPUS:0347771372
SN - 0097-6156
VL - 656
SP - 245
EP - 273
JO - ACS Symposium Series
JF - ACS Symposium Series
ER -