Wang, HuiLiu, ZiyueJi, ShanWang, KeliangZhou, TianbaoWang, Rongfang2017-09-072017-09-072013Wang, H. et al. (2013). Ethanol oxidation activity and structure of carbon-supported Ptmodified PdSn-Sn02 influenced by different stabilizers. Electrochimica Acta, 108: 833– 8400013-4686http://dx.doi.org/10.1016/j.electacta.2013.07.061http://hdl.handle.net/10566/3178PdSn-SnO2 nanoparticles supported on Vulcan XC-72 carbon were synthesized by chemical reduction in the presence of three different stabilizing agents: ethylene diamine tetra-acetic acid (EDTA), sodium citrate (Nacitrate) and hexamethylenetetramine (HMTA). TEM analysis showed that PdSn-SnO2 /C catalyst made using the HMTA stabilizer produced the smallest particle size. XRD analysis detected the presence of PdSn alloy and the SnO2 phase in all three PdSn-SnO2 /C samples, and showed that PdSn-SnO2 (HMTA) had the smallest lattice parameter. After PdSn-SnO2 samples were modified by Pt, the particle size distribution and average size of nanoparticles of Pt-PdSn-SnO2 did not obviously change, and the fcc structure of PdSn in all three samples was retained. XPS measurement showed a higher upshift of Pt 4f binding energy occurred for Pt/PdSn-SnO2 /C (HMTA) compared to those of Pt/PdSn-SnO2 /C (EDTA) and Pt/PdSn-SnO2 /C (Nacitrate). Pt/PdSn-SnO2 /C (HMTA) was also found to have the highest CO and ethanol oxidation activity among the three catalysts.enThis is the author-version of the article published online at: http://dx.doi.org/10.1016/j.electacta.2013.07.061PlatinumPdSn alloyTin oxideElectrocatalystEthanol oxidationArticle