title: One-pot method of synthesis of Pt/SnO2 system and its electrocatalytic activity.
abstract: BACKGROUND
  Electro-oxidation of methanol in acidic solution was investigated on a Pt/SnO2 based electrocatalyst obtained by the sol-gel method. Pt/SnO2 systems were prepared by one pot synthesis using a sol-gel method and tin (IV) acetate as a precursor of SnO2 and water solution of hexachloroplatinum acid as a source of metallic phase.
  
  
  RESULTS
  The described method, thanks to its simplicity and mildprocessing temperature, offers uniform dispersion of metal phase in the bulk of the gel forming as a result of hydrolysis and condnastionon of tin precursor. It has been found that the obtained system exhibits high electrocatalytic activity just after low temperature processing. This work investigates the effect of the Pt concentration and the influence thermal treatment of Pt/SnO2 on its electrochemical activity.
  
  
  CONCLUSIONS
  The described procedure is a simple method of producing a highly active Pt/SnO2 electrocatalyst without using thermal treatment in reducing conditions. The oxidation state of Pt is a determining factor for its activity in an electrooxidation process. Graphical AbstractOne-pot method of synthesis of Pt/SnO2 catalyst.
authors.affiliation: Institute of Non-Ferrous Metals Division in Poznan, Central Laboratory of Batteries and Cells, 12 Forteczna St., 61-362 Poznan, Poland.
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Martyla
authors.affiliation: Institute of Non-Ferrous Metals Division in Poznan, Central Laboratory of Batteries and Cells, 12 Forteczna St., 61-362 Poznan, Poland.
authors.forename: Maciej
authors.initials: M
authors.lastname: Kopczyk
authors.affiliation: Adam Mickiewicz University Foundation Poznan Science and Technology Park, 46 Rubiez St., 61-612 Poznan, Poland.
authors.forename: Piotr
authors.initials: P
authors.lastname: Marciniak
authors.affiliation: Centre of Advanced Technologies Adam Mickiewicz University, 6 Grunwaldzka St., 60-780 Poznan, Poland.
authors.forename: Robert
authors.initials: R
authors.lastname: Przekop
keywords: Electrocatalyst; Low temperature treatment; One-pot method; Sol–gel