title: Platinum-tin oxide core-shell catalysts for efficient electro-oxidation of ethanol.
abstract: Platinum-tin (Pt/Sn) binary nanoparticles are active electrocatalysts for the ethanol oxidation reaction (EOR), but inactive for splitting the C-C bond of ethanol to CO2. Here we studied detailed structure properties of Pt/Sn catalysts for the EOR, especially CO2 generation in situ using a CO2 microelectrode. We found that composition and crystalline structure of the tin element played important roles in the CO2 generation: non-alloyed Pt46-(SnO2)54 core-shell particles demonstrated a strong capability for C-C bond breaking of ethanol than pure Pt and intermetallic Pt/Sn, showing 4.1 times higher CO2 peak partial pressure generated from EOR than commercial Pt/C.
authors.affiliation: Department of Chemical Engineering, University of New Hampshire , Durham, New Hampshire 03824, United States.
authors.forename: Wenxin
authors.initials: W
authors.lastname: Du
authors.forename: Guangxing
authors.initials: G
authors.lastname: Yang
authors.forename: Emily
authors.initials: E
authors.lastname: Wong
authors.forename: N Aaron
authors.initials: NA
authors.lastname: Deskins
authors.forename: Anatoly I
authors.initials: AI
authors.lastname: Frenkel
authors.forename: Dong
authors.initials: D
authors.lastname: Su
authors.forename: Xiaowei
authors.initials: X
authors.lastname: Teng
mesh_terms: D000497:Alloys / Q000737:chemistry; D002384:Catalysis; D004563:Electrochemistry; D000431:Ethanol / Q000737:chemistry*; D010084:Oxidation-Reduction; D010984:Platinum / Q000737:chemistry*; D017971:Tin Compounds / Q000737:chemistry*
chemical_list: D000497:Alloys; D017971:Tin Compounds; D000431:Ethanol; D010984:Platinum; C045358:stannic oxide