Heteroatom doped 3D graphene aerogel supported catalysts for formic acid and methanol oxidation

Cogenli, M. Selim; Bayrakçeken, Ayşe

doi:10.1016/j.ijhydene.2019.10.226

Makale Tam Makale Uluslararası 2020 Açık erişimli

Heteroatom doped 3D graphene aerogel supported catalysts for formic acid and methanol oxidation

M. Selim Cogenli, Ayşe Bayrakçeken

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY Cilt 45 · Sayı 1 · ss. 650–666 · 01.01.2020

DOI ile aç

Özet

In this study, nitrogen (N) and boron (B) heteroatom doped graphene aerogel support materials have been employed for the dispersion of platinum (Pt) nanoparticles to improve their electrocatalytic activities for formic acid and methanol oxidation. Pt nanoparticles dispersed on the heteroatom doped graphene aerogel (GA) support materials by a microwave heating method. The as-prepared catalysts were characterized by a variety of means such as SEM, EDS, ICP-MS, TEM, XRD, BET and XPS. The electrocatalytic activities, stability and impedance of the synthesized catalysts were investigated for formic acid and methanol oxidation using electrochemical measurements. The 3D graphene aerogels have higher capacitive currents than the Vulcan XC-72 in the double layer region. The results of electrochemical chronoamperometry tests reveal that Pt/BGA shows the best stability for methanol oxidation and also exhibited superior electrocatalytic activity towards the oxidation of methanol in cyclic voltammetry. In addition to, heteroatom doped GA supported catalysts higher activity compared to the Vulcan XC-72 supported catalyst for formic acid oxidation. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

Anahtar kelimeler

CARBON NANOTUBES PALLADIUM NANOPARTICLES Oxygen reduction reaction METHANOL OXIDATION EFFICIENT ELECTROCATALYST SURFACE-AREA electrochemical impedance Heteroatom Graphene aerogel formic acid oxidation HIGHLY-ACTIVE ELECTROCATALYSTS IMPROVED CO TOLERANCE 3-DIMENSIONAL NITROGEN DOUBLE-LAYER

Atıf için künye

Cogenli, M. S., & Bayrakçeken, A. (2020). Heteroatom doped 3D graphene aerogel supported catalysts for formic acid and methanol oxidation. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 45(1), 650–666. https://doi.org/10.1016/j.ijhydene.2019.10.226

BibTeX

@article{cogenli2020-187510,
  author = {Cogenli, M. Selim and Bayrakçeken, Ayşe},
  title = {Heteroatom doped 3D graphene aerogel supported catalysts for formic acid and methanol oxidation},
  journal = {INTERNATIONAL JOURNAL OF HYDROGEN ENERGY},
  year = {2020},
  volume = {45},
  number = {1},
  pages = {650--666},
  issn = {0360-3199},
  doi = {10.1016/j.ijhydene.2019.10.226},
  url = {https://akademik.atauni.edu.tr/yayinlar/187510-heteroatom-doped-3d-graphene-aerogel-supported-catalysts-for-formic-acid-and}
}