Catalysis with Supported Size-selected Pt Clusters: by Florian Frank Schweinberger

By Florian Frank Schweinberger

In his thesis, Florian Schweinberger investigates the impression of the correct dimension of catalytically energetic species on reactivity. so as to do that he contains out reports either in UHV and less than ambient stipulations for supported, size-selected Platium clusters (8-68 atoms). Schweinberger probed the digital constitution, adsorption homes and reactivity of 2 olefins on surfaces and Pt clusters within the submonolayer diversity. With adsorbed trichloroethene (TCE) a potential cluster-adsorbate caused switch within the digital constitution, and for ethene a low-temperature, size-dependent self-/hydrogenation was once observed.In a collaborative method, Schweinberger and co-workers investigated Pt clusters less than ambient strain stipulations. They characterized the clusters at on the neighborhood and indispensable point and proven for temperature balance. Experiments in fuel part ?-reactors and in liquid, as a part of a hybrid photocatalytic procedure, published size-dependent reactivity.Overall this thesis is not just of curiosity when you are looking to practice comparable experiments but in addition offers incredible medical insights for researchers within the field.

Show description

Read or Download Catalysis with Supported Size-selected Pt Clusters: Fundamental UHV and Applied Ambient Experiments PDF

Similar applied books

Applied Mathematics Entering the 21st Century: Invited Talks from the ICIAM 2003 Congress

Papers showing during this quantity are the Invited Talks given at ICIAM 2003, the fifth overseas Congress of business and utilized arithmetic, held in Sydney over the interval July 7 to eleven, 2003. The Congress celebrates and describes the contributions of utilized arithmetic -- as an highbrow production in its personal correct, as a starting place stone of technological improvement, and as an critical collaborative accomplice for different clinical disciplines.

Applied Regression Including Computing and Graphics (Wiley Series in Probability and Statistics)

A step by step consultant to computing and pix in regression analysisIn this targeted ebook, prime statisticians Dennis cook dinner and Sanford Weisberg expertly combination regression basics and state-of-the-art graphical thoughts. They mix and up- date many of the fabric from their known previous paintings, An creation to Regression photographs, and Weisberg's utilized Linear Regression; comprise the most recent in statistical portraits, computing, and regression types; and finally end up with a contemporary, absolutely built-in method of essentially the most very important instruments of knowledge research.

Artemia: Basic and Applied Biology

The targets of this quantity are to provide an up to date (literature survey as much as 2001) account of the biology of Artemia focusing relatively upon the foremost advances in wisdom and realizing completed within the final fifteen or so years and emphasising the operational and useful linkage among the organic phenomena defined and the power of this strange animal to thrive in severe environments.

Joining Technologies for Composites and Dissimilar Materials, Volume 10: Proceedings of the 2016 Annual Conference on Experimental and Applied Mechanics 

Becoming a member of applied sciences for Composites and multiple fabrics, quantity 10 of the complaints of the 2016 SEM Annual convention & Exposition on Experimental and utilized Mechanics, the 10th quantity of ten from the convention, brings jointly contributions to this crucial region of study and engineering.

Extra info for Catalysis with Supported Size-selected Pt Clusters: Fundamental UHV and Applied Ambient Experiments

Sample text

Annual Review of Physical Chemistry, 53, 319. 92. , et al. (2010). Nature Chemistry, 2, 454. 93. , & Iwata, S. (1981). Handbook of HeI photoelectron spectra of fundamental organic molecules: Ionization energies, ab initio assignments, and valence electronic structure for 200 molecules. Tokyo: Japan Scientific Societies Press. 94. Blyholder, G. (1964). Journal of Physical Chemistry, 68, 2772. 95. Kunz, S. (2010). D. thesis, Technische Universität München. 96. Crampton, A. (2011). Master’s thesis, Technische Universität München.

Thus, this section is dealing with the peculiarities and problems of these techniques for the study of adsorbate interaction and approaches used in this thesis. General choices for data treatment are presented and explained, the interpretation is subject of the following section. The considerations are based on the general knowledge on PES/EES, the (experimental) principles are briefly introduced in the Chap. 3 in Sect. 5. 5 eV compared to of single crystal data thus indicating a possible cluster induced effect [108].

As a consequence of the competitive formation the efficiency of the reaction under vacuum is low and the formation of ethane only accounts for a small percentage of the initial amount of ethene. For example, measurements found that only 10 % of a saturated ethene layer were converted via self-hydrogenation to ethane at 283 K [54]. Based on these considerations and experimental evidences a current model for the ethane formation on Pt(111) is depicted in Fig. 1a, involving both π -bonded and di − σ bonded species [49].

Download PDF sample

Rated 4.56 of 5 – based on 42 votes