A comparative experimental and density
functional study of glucose adsorption and
electrooxidation on the Au-graphene and Pt-
graphene electrodes
Aykut Caglar
a
, Derya Du ¨ zenli
b
, Isık Onal
c
, Ilker Tezsevin
d
,
Ozlem Sahin
e
, Hilal Kivrak
a,*
a
Van Yuzuncu Yil University, Faculty of Engineering, Department of Chemical Engineering, Van, 65000, Turkey
b
General Directorate of Mineral Research and Exploration, Ankara, 06800, Turkey
c
Middle East Technical University, Faculty of Engineering, Department of Chemical Engineering, Ankara, 06800,
Turkey
d
Dutch Institute for Fundamental Energy Research, 5612 AJ, Eindhoven, the Netherlands
e
Konya Technical University, Faculty of Engineering, Department of Chemical Engineering, Konya, Turkey
highlights graphical abstract
Few layer graphene produced by
the CVD method is succesfully
coated on ITO.
Pt and Au are succesfully electro-
deposited on few layer graphene/
ITO electrode.
Pt-graphene/ITO indicates the best
C
6
H
12
O
6
electrochemical activity
and stability.
C
6
H
12
O
6
adsorption is examined
via DFT over Au and Pt doped
graphene surfaces.
The interaction between C
6
H
12
O
6
and OH adsorbed Pt-doped surface
is robust.
article info
Article history:
Received 16 July 2019
Received in revised form
25 September 2019
Accepted 21 October 2019
Available online xxx
abstract
At present, the graphene is covered on Cu foil with the 5 sccm hexane (C
6
H
14
) flow rate, 50
sccm hydrogen (H
2
) flow rate, and 20 min deposition time parameters by the CVD method.
The graphene on the Cu foil is then covered onto few-layer ITO electrode. Furthermore, the
Pt and Au metals are electrodeposited on graphene/ITO electrode with electrochemical
method. These electrodes are characterized by Raman spectroscopy and Scanning Electron
Microscopy-Energy Dispersive X-Ray analysis (SEM-EDX). The graphene structure is
* Corresponding author.
E-mail addresses: hilalkivrak@yyu.edu.tr, hilalkivrak@gmail.com (H. Kivrak).
Available online at www.sciencedirect.com
ScienceDirect
journal homepage: www.elsevier.com/locate/he
international journal of hydrogen energy xxx (xxxx) xxx
https://doi.org/10.1016/j.ijhydene.2019.10.163
0360-3199/© 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Please cite this article as: Caglar A et al., A comparative experimental and density functional study of glucose adsorption and elec-
trooxidation on the Au-graphene and Pt-graphene electrodes, International Journal of Hydrogen Energy, https://doi.org/10.1016/
j.ijhydene.2019.10.163