EFFECTS OF BOUNDARIES ON PATTERN-FORMATION - CATALYTIC-OXIDATION OF CO ON PLATINUM

被引:133
作者
GRAHAM, MD
KEVREKIDIS, IG
ASAKURA, K
LAUTERBACH, J
KRISCHER, K
ROTERMUND, HH
ERTL, G
机构
[1] MAX PLANCK GESELL,FRITZ HABER INST,D-14195 BERLIN,GERMANY
[2] UNIV WISCONSIN,DEPT CHEM ENGN,MADISON,WI 53706
关键词
D O I
10.1126/science.264.5155.80
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The effect of boundaries on pattern formation was studied for the catalytic oxidation of carbon monoxide on platinum surfaces. Photolithography was used to create microscopic reacting domains on polycrystalline foils and single-crystal platinum (110) surfaces with inert titanium overlayers. Certain domain geometries give rise to patterns that have not been observed on the untreated catalyst and bring to light surface mechanisms that have no analog in homogeneous reaction-diffusion systems.
引用
收藏
页码:80 / 82
页数:3
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