Institute of Materials Chemistry, Vienna University of Technology, Getreidemarkt 9/BC/01, 1060 Vienna, Austria.
Angew Chem Int Ed Engl. 2012 Oct 1;51(40):10041-4. doi: 10.1002/anie.201204031. Epub 2012 Sep 7.
: Photoemission electron microscopy, DFT, and microkinetic modeling were used to examine the local kinetics in the CO oxidation on individual grains of a polycrystalline sample. It is demonstrated that catalytic ignition (“light-off”) occurs easier on Pd() domains than on corresponding Pt() domains. The isothermal determination of kinetic transitions, commonly used in surface science, is fully consistent with the isobaric reactivity monitoring applied in technical catalysis.
光发射电子显微镜、密度泛函理论和微观动力学模型被用于研究多晶样品中单个晶粒上 CO 氧化的局部动力学。研究表明，催化点火（“起燃”）在 Pd()位上比在相应的 Pt()位上更容易发生。在表面科学中常用的等温动力学转变的确定与在技术催化中应用的等压反应性监测完全一致。
