caa a22 4500 46325239X CHVBK 20180405153344.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s10562-007-9027-7 doi (NATIONALLICENCE)springer-10.1007/s10562-007-9027-7 Effect of interparticle interaction on the low temperature oxidation of CO over size-selected Au nanocatalysts supported on ultrathin TiC films [Elektronische Daten] [Luis Ono, Beatriz Roldán-Cuenya] This work aims to get insight into the influence of interparticle interactions on catalysis. The low temperature CO oxidation is used as a model reaction. A strong dependence of the catalytic activity and stability of gold nanoparticles uniformly dispersed on polycrystalline TiC films was observed as a function of the interparticle distance. Two samples with similar height distributions (∼2nm), but with different average interparticle distances (∼30 and ∼80nm), were synthesized using diblock copolymer encapsulation. Their chemical reactivity was investigated by temperature programmed desorption (TPD), and reactive coarsening and subsequent deactivation was observed for the sample with the smallest interparticle distance. The system with the largest average interparticle distance showed higher stability towards agglomeration and longer lifetime. Springer Science+Business Media, LLC, 2007 catalysis nationallicence Au nanoparticle nationallicence diblock copolymer nationallicence sintering nationallicence CO oxidation nationallicence interparticle interaction nationallicence size effects nationallicence XPS nationallicence TPD nationallicence AFM nationallicence Ono Luis Department of Physics, University of Central Florida, 32816, Orlando, FL, USA aut Roldán-Cuenya Beatriz Department of Physics, University of Central Florida, 32816, Orlando, FL, USA aut Catalysis Letters Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 113/3-4(2007-02-01), 86-94 1011-372X 113:3-4<86 2007 113 10562 https://doi.org/10.1007/s10562-007-9027-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10562-007-9027-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ono Luis Department of Physics, University of Central Florida, 32816, Orlando, FL, USA aut NATIONALLICENCE 700 1- Roldán-Cuenya Beatriz Department of Physics, University of Central Florida, 32816, Orlando, FL, USA aut NATIONALLICENCE 773 0- Catalysis Letters Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 113/3-4(2007-02-01), 86-94 1011-372X 113:3-4<86 2007 113 10562 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer