Evolution of the Atomic Structure of Ceria-Supported Platinum Nanocatalysts: Formation of Single Layer Platinum Oxide and Pt–O–Ce and Pt–Ce Linkages

Autor: Jeroen A. van Bokhoven, Urs Hartfelder, Leon A. Avakyan, Lusegen A. Bugaev, E. V. Paramonova, N. A. Kolpacheva, Jagdeep Singh

Publikováno v: The Journal of Physical Chemistry C. 120:28057-28066

Depending on platinum loading and gas environment vastly different platinum structures in Pt/ceria were observed by Pt L3-edge extended X-ray absorption (EXAFS) and X-ray absorption near-edge (XANES) spectroscopies. Calcination of highly loaded plati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::484d0364388938baddc02a6d32578816
https://doi.org/10.1021/acs.jpcc.6b09824

Zein-based micropowders as a novel strategy to deliver bioactive compounds in food supplements

Autor: Diletta Esposito, Giovanni Dal Poggetto, Kraut Nicolai, Urs Hartfelder, Agnese Miro, Francesca Ungaro, Paola Laurienzo, Fabiana Quaglia

Publikováno v: 3rd European Conference on Pharmaceutics, Bologna, Italy, 25-26/03/2019
info:cnr-pdr/source/autori:Diletta Esposito, Giovanni Dal Poggetto, Kraut Nicolai, Urs Hartfelder, Agnese Miro, Francesca Ungaro, Paola Laurienzo, Fabiana Quaglia/congresso_nome:3rd European Conference on Pharmaceutics/congresso_luogo:Bologna, Italy/congresso_data:25-26%2F03%2F2019/anno:2019/pagina_da:/pagina_a:/intervallo_pagine

Food supplements may be used to improve health, delay the aging process, prevent chronic diseases, increase life expectancy and support the structure or function of the body (Nasri et al, 2014). It has been highlighted that the worldwide dietary supp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=cnr_________::ddd0493a5df64f2443c9c4ae3fe5a4e9
http://www.cnr.it/prodotto/i/396204

Real Time Determination of the Electronic Structure of Unstable Reaction Intermediates during Au2O3 Reduction

Autor: Jean-Claude Dousse, Maarten Nachtegaal, Jacinto Sá, Catherine Stampfl, Daniel L. A. Fernandes, Hongqing Shi, Jakub Szlachetko, Urs Hartfelder, Joanna Hoszowska

Publikováno v: The Journal of Physical Chemistry Letters

Chemical reactions are always associated with electronic structure changes of the involved chemical species. Determining the electronic configuration of an atom allows probing its chemical state and gives understanding of the reaction pathways. Howev

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d563268198592806467dbed573a02de
https://doi.org/10.1021/jz402309s

Detecting and utilizing minority phases in heterogeneous catalysis

Autor: Daniel Grolimund, Johannes Haase, Jagdeep Singh, Maarten Nachtegaal, Jeroen A. van Bokhoven, Urs Hartfelder

Publikováno v: Scientific Reports
Scientific Reports, 6

Highly active phases in carbon monoxide oxidation are known, however they are transient in nature. Here, we determined for the first time the structure of such a highly active phase on platinum nanoparticles in an actual reactor. Unlike generally ass

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::141be5976dd6c0c6bf560fde1e6c5f08
https://pubmed.ncbi.nlm.nih.gov/27883033

Redispersion of Gold Multiple-Twinned Particles during Liquid-Phase Hydrogenation

Autor: Frank Krumeich, Olga V. Safonova, Christiane Kartusch, Martin Makosch, Jeroen A. van Bokhoven, Urs Hartfelder, Jacinto Sá

Publikováno v: ACS Catalysis

Controlling the particle size of supported metal catalysts is essential to achieving active selective and stable catalysts. High resolution electron microscopy has revealed that large Au particles (~8 nm) supported on titania and if multiple twinned

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9964e658d5a8d0da01b8c3ea607802f4
https://doi.org/10.1021/cs300075k