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Pt nanoparticles synthesized with new surfactants: improvement in C1–C3 alcohol oxidation catalytic activity

Authors
  • Şen, Fatih1
  • Gökağaç, Gülsün2
  • 1 Dumlupinar University, Biochemistry Department, Kutahya, 43020, Turkey , Kutahya (Turkey)
  • 2 Middle East Technical University, Chemistry Department, Ankara, 06531, Turkey , Ankara (Turkey)
Type
Published Article
Journal
Journal of Applied Electrochemistry
Publisher
Springer Netherlands
Publication Date
Sep 29, 2013
Volume
44
Issue
1
Pages
199–207
Identifiers
DOI: 10.1007/s10800-013-0631-5
Source
Springer Nature
Keywords
License
Yellow

Abstract

Platinum electrocatalysts were prepared using PtCl4 as a starting material and 1-decylamine, N,N-dimethyldecylamine, 1-dodecylamine, N,N-dimethyldodecylamine, 1-hexadecylamine, and 1-octadecylamine as surfactants. These surfactants were used for the first time in this synthesis to determine whether the primary and/or tertiary structure and/or chain length of the surfactants, affects the size and/or activity of the catalysts in C1–C3 alcohol electro-oxidation reactions. Electrochemical measurements (cyclic voltammetry and chronoamperometry) indicated that the highest electrocatalytic performance was observed for the Pt nanocatalysts that were stabilized by N,N-dimethyldecylamine, and this has a tertiary amine structure with a short chain length (R = C10H21). The high performance may be due to the high electrochemical surface area, Pt(0)/Pt(IV) ratio, %Pt utility, and roughness factor (Rf). X-ray photoelectron spectroscopy, X-ray diffraction, atomic force microscopy, and transmission electron microscopy were used to determine the parameters that affect the catalytic activities.

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