caa a22 4500 606173617 CHVBK 20210128100734.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s11244-015-0481-y doi (NATIONALLICENCE)springer-10.1007/s11244-015-0481-y On the Interaction of Metal Nanoparticles with Supports [Elektronische Daten] [Krisztian Kordas, Anne-Riikka Rautio, Gabriela Lorite, Melinda Mohl, Päivi Mäki-Arvela, Jyri-Pekka Mikkola, Dmitry Murzin, Liehui Ge, Pulickel Ajayan, Robert Vajtai] Metal nanoparticles supported on surfaces often undergo sintering even at moderate temperatures. The degree of sintering is typically influenced by the surface chemistry indicating that besides the commonly believed Ostwald ripening also other processes associated with metal surface diffusion are responsible for the nanoparticle size growth. In addition to the deterioration in metal dispersion, carbon supports can show chemical instability leading to their partial degradation in the proximity of the nanoparticles both in reducing and oxidizing environments at elevated temperatures. This work reports a study of Pd, Pt and Ni nanoparticles anchored on carbon (activated carbon, graphite and carbon nanotubes) as well as titania (nanoparticles and microparticles) surfaces frequently applied as catalyst materials in heterogeneous catalysis and photocatalysis, and evaluate the potential events causing metal sintering and degradation of the supports using transmission electron microscopy analysis. Springer Science+Business Media New York, 2015 Carbon nanotubes nationallicence Titania nanoparticles nationallicence Catalyst support nationallicence Catalyst aging nationallicence Catalyst coarsening nationallicence Kordas Krisztian Microelectronics and Materials Physics Laboratories, Department of Electrical Engineering, University of Oulu, P.O. Box 4500, 90014, Oulu, Finland aut Rautio Anne-Riikka Microelectronics and Materials Physics Laboratories, Department of Electrical Engineering, University of Oulu, P.O. Box 4500, 90014, Oulu, Finland aut Lorite Gabriela Microelectronics and Materials Physics Laboratories, Department of Electrical Engineering, University of Oulu, P.O. Box 4500, 90014, Oulu, Finland aut Mohl Melinda Microelectronics and Materials Physics Laboratories, Department of Electrical Engineering, University of Oulu, P.O. Box 4500, 90014, Oulu, Finland aut Mäki-Arvela Päivi Industrial Chemistry and Reaction Engineering, Process Chemistry Centre, Åbo Akademi University, 20500, Turku, Finland aut Mikkola Jyri-Pekka Industrial Chemistry and Reaction Engineering, Process Chemistry Centre, Åbo Akademi University, 20500, Turku, Finland aut Murzin Dmitry Technical Chemistry, Department of Chemistry, Umeå University, 90187, Umeå, Sweden aut Ge Liehui Nanomaterials Laboratory, Department of Mechanical Engineering and Materials Science, Rice University, 6100 Main, MS-321, 77005-1892, Houston, TX, USA aut Ajayan Pulickel Nanomaterials Laboratory, Department of Mechanical Engineering and Materials Science, Rice University, 6100 Main, MS-321, 77005-1892, Houston, TX, USA aut Vajtai Robert Nanomaterials Laboratory, Department of Mechanical Engineering and Materials Science, Rice University, 6100 Main, MS-321, 77005-1892, Houston, TX, USA aut Topics in Catalysis Springer US; http://www.springer-ny.com 58/14-17(2015-10-01), 1127-1135 1022-5528 58:14-17<1127 2015 58 11244 https://doi.org/10.1007/s11244-015-0481-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11244-015-0481-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kordas Krisztian Microelectronics and Materials Physics Laboratories, Department of Electrical Engineering, University of Oulu, P.O. Box 4500, 90014, Oulu, Finland aut NATIONALLICENCE 700 1- Rautio Anne-Riikka Microelectronics and Materials Physics Laboratories, Department of Electrical Engineering, University of Oulu, P.O. Box 4500, 90014, Oulu, Finland aut NATIONALLICENCE 700 1- Lorite Gabriela Microelectronics and Materials Physics Laboratories, Department of Electrical Engineering, University of Oulu, P.O. Box 4500, 90014, Oulu, Finland aut NATIONALLICENCE 700 1- Mohl Melinda Microelectronics and Materials Physics Laboratories, Department of Electrical Engineering, University of Oulu, P.O. Box 4500, 90014, Oulu, Finland aut NATIONALLICENCE 700 1- Mäki-Arvela Päivi Industrial Chemistry and Reaction Engineering, Process Chemistry Centre, Åbo Akademi University, 20500, Turku, Finland aut NATIONALLICENCE 700 1- Mikkola Jyri-Pekka Industrial Chemistry and Reaction Engineering, Process Chemistry Centre, Åbo Akademi University, 20500, Turku, Finland aut NATIONALLICENCE 700 1- Murzin Dmitry Technical Chemistry, Department of Chemistry, Umeå University, 90187, Umeå, Sweden aut NATIONALLICENCE 700 1- Ge Liehui Nanomaterials Laboratory, Department of Mechanical Engineering and Materials Science, Rice University, 6100 Main, MS-321, 77005-1892, Houston, TX, USA aut NATIONALLICENCE 700 1- Ajayan Pulickel Nanomaterials Laboratory, Department of Mechanical Engineering and Materials Science, Rice University, 6100 Main, MS-321, 77005-1892, Houston, TX, USA aut NATIONALLICENCE 700 1- Vajtai Robert Nanomaterials Laboratory, Department of Mechanical Engineering and Materials Science, Rice University, 6100 Main, MS-321, 77005-1892, Houston, TX, USA aut NATIONALLICENCE 773 0- Topics in Catalysis Springer US; http://www.springer-ny.com 58/14-17(2015-10-01), 1127-1135 1022-5528 58:14-17<1127 2015 58 11244