Glucose electrooxidation modelling studies on carbon nanotube supported Pd catalyst with response surface methodology and density functional theory

Ulaş, Berdan
Duzenli, Derya
Önal, Işık
Er, Omer Faruk
Yilmaz, Yonca
Tezsevin, Ilker
© 2022 Elsevier LtdIn this study, carbon nanotube supported Pd catalysts (Pd/CNT) are synthesized at different weight percentages by the sodium borohydride (NaBH4) reduction method to investigate catalytic performance of glucose electrooxidation reaction. 0.5% Pd/CNT, 3% Pd/CNT, and 7% Pd/CNT catalysts are characterized by using X-ray diffraction (XRD), electron microscopy with energy dispersive X-ray (SEM-EDX), and N2 adsorption-desorption measurements. The average particle size and surface area of 3% Pd/CNT catalyst are determined as 46.33 nm and 129.48 m2/g, respectively. Characterization results indicate that Pd/CNT catalysts are successfully prepared by NaBH4 reduction method. Cyclic voltammetry measurements are performed to investigate the effect of Pd loading for the glucose electrooxidation. CV results reveal that 3% Pd/CNT catalyst exhibits best glucose electrooxidation activity. Following this, experimental optimization is performed to obtain maximum glucose electrooxidation activity via response surface methodology (RSM). Estimated and experimental specific activities at optimum experimental conditions are assigned as 6.186 and 5.832 mA/cm2, respectively. To understand the glucose electrooxidation activity on the surface of Pd/CNT, surface modeling is also performed with density functional theory (DFT) method to investigate adsorption of glucose molecule on CNT supported Pd surface. The DFT results emphasize that the addition of Pd atom to the CNT structure significantly improves the catalytic performance in glucose electrooxidation.
Journal of Physics and Chemistry of Solids


Glucose isomerase production on a xylan-based medium by Bacillus thermoantarcticus
Çalık, Pınar; Haykir, Nazife Isik; BOYACI, İSMAİL HAKKI (Elsevier BV, 2009-01-15)
Effects of medium components on intracellular glucose isomerase (GI) production were investigated by Bacillus thermoantarcticus. The highest GI activity was obtained as 1630 U dm(-3) in the medium containing (g dm(-3)): 10.6, birchwood-xylan: 5.6, yeast extract: 5.9 (NH(4))(2)SO(4) at T = 55 C in 33 cm(-3) shake-flasks. When birchwood-xylan was replaced with oat spelt- or beechwood-xylan, GI activity decreased to 1372 and 1308 U dm(-3). respectively. Effects of pH at uncontrolled-pH (pH(UC) = 6.0) and contr...
Glucose determination based on a two component self-assembled monolayer functionalized surfaceenhanced Raman spectroscopy (SERS) probe
TORUL, HİLAL; ÇİFTÇİ, HAKAN; Dudak, Fahriye Ceyda; Adiguzel, Yekbun; Külah, Haluk; BOYACI, İSMAİL HAKKI; TAMER, UĞUR (2014-01-01)
In this report, we present a new detection method for blood glucose, using gold nanorod SERS, a surface enhanced Raman scattering probe embedded in two component self-assembled monolayers (SAMs). Gold nanorod particles and a gold coated slide surface were modified with the two component SAMs consisting of 3-mercaptophenylboronic acid (3-MBA) and 1-decanethiol (1-DT). The immobilization of 3-MBA/1-DT surface-functionalized gold nanoparticles onto 3-MBA/1-DT modified gold-coated slide surfaces was achieved by...
Effects of oxidative functionalized and aminosilanized carbon nanotubes on the crystallization behaviour of polyamide-6 nanocomposites
Kaynak, Cevdet (2014-04-01)
The purpose of this study is to investigate effects of oxidative functionalized and aminosilanized carbon nanotubes on the (1) isothermal and (2) non-isothermal crystallization kinetics of polyamide-6 by DSC analyses, and (3) crystal structure of injection molded specimens by XRD analyses. Nanocomposites were compounded by using melt mixing technique via twin screw extrusion. Due to basically very effective heterogeneous nucleation effect, both increasing amount and surface functionalization of carbon nanot...
Interaction of nitric oxide with elements
Erkoç, Şakir (Elsevier BV, 2001-11-16)
Interaction of nitric oxide with elements has been investigated by performing density functional theory calculation within the effective core potential level. The structural, electronic, and vibrational properties of A-NO trimers have been calculated in their ground state.
Carbon-supported PT nanoparticles prepared by new surfactants and different reducing agents for methanol oxidation reaction
Kalyoncu, Sevda; Gökağaç Arslan, Gülsün; Department of Chemistry (2015)
In this thesis, carbon supported platinum catalysts were synthesized to investigate the effect of reducing agent and surfactant on the performance of catalyst towards methanol oxidation reaction. For this purpose, the catalysts were prepared by using PtCl4 as a starting material, propylamine (a) and dipropylamine (b) as surfactant, and sodium borohydride (catalyst I) and formaldehyde (catalyst II) as reducing agent. The prepared catalysts were characterized by X-ray diffraction (XRD), transmission electron ...
Citation Formats
Ş. KAYA et al., “Glucose electrooxidation modelling studies on carbon nanotube supported Pd catalyst with response surface methodology and density functional theory,” Journal of Physics and Chemistry of Solids, vol. 168, pp. 0–0, 2022, Accessed: 00, 2022. [Online]. Available: