Franz Torsten, von Boehn Bernhard, Marchetto Helder, Borkenhagen Benjamin, Lilienkamp Gerhard, Daum Winfried, Imbihl Ronald
Elmitec Elektronenmikroskopie GmbH, Albrecht-von-Groddeck-Straße 3, 38678 Clausthal-Zellerfeld, Germany.
Institut für Physikalische Chemie und Elektrochemie, Leibniz Universität Hannover, Callinstrasse 3A, 30167 Hannover, Germany.
Ultramicroscopy. 2019 May;200:73-78. doi: 10.1016/j.ultramic.2019.02.024. Epub 2019 Feb 27.
A near ambient pressure low-energy electron microscope (NAP-LEEM) has recently been constructed, that allows in situ imaging of surfaces up to a pressure of 10 mbar. Here we report on pattern formation in catalytic CO oxidation on a Pt(110) single crystal surface and on a polycrystalline Pt foil in the 10 mbar range, operating the microscope in the mirror electron microscopy (MEM) and in the LEEM mode. Excitations localized at structural defects and spiral wave fragments have been observed.
最近构建了一种近常压低能电子显微镜（NAP - LEEM），它能够在高达10毫巴的压力下对表面进行原位成像。在此，我们报告在10毫巴范围内，在Pt(110)单晶表面和多晶Pt箔上催化CO氧化过程中的图案形成情况，该显微镜在反射电子显微镜（MEM）和低能电子显微镜（LEEM）模式下运行。观察到了定域在结构缺陷处的激发以及螺旋波片段。
