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

Kaya, Şefika; Düzenli, Derya; Önal, Işık; Er, Ömer Faruk; Tezsevin, Ilker; Kıvrak, Hilal

doi:10.1016/j.jpcs.2022.110810

Cited by 6 publications

(3 citation statements)

References 56 publications

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“…An extremely limited number of studies have been reported in the literature on the optimization of electrode preparation conditions to increase electrochemical activity. With the electrode systems Pt/CNT/GCE and Pd/CNT/GCE previously reported by our working group, electrocatalytic performances close to those of complex synthesis procedures and more expensive catalyst systems were observed [31,37]. It is seen from wt.%) for FAEO was reported as 3.59 and 1.6 mA cm − 2 , respectively [41,42].…”

Section: Electrochemical Evaluationsupporting

confidence: 60%

Optimization of electrode preparation conditions by response surface methodology for improved formic acid electrooxidation on Pd/MWCNT/GCE

Ulas

2023

Preprint

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This work examines the formic acid electrooxidation (FAEO) capabilities of Pd catalysts supported by multiwall carbon nanotubes (MWCNTs) that were synthesized at varying weight percentages. Advanced surface analysis techniques namely X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy with X-ray energy dispersive (SEM-EDX), and elemental mapping are used to evaluate the Pd/MWCNT. To achieve the highest specific activity for FAEO on Pd/MWCNT, electrode preparation parameters namely catalyst slurry amount (Vs), ultrasonication duration of catalyst slurry (tu), and electrode drying time (td) were optimized by response surface methodology central composite design (RSM-CCD). Measurements made using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and chronoamperometry (CA) are used to determine the specific activity and stability for FAEO. The optimum values for the Vs, td, and tu were determined as 1.84 µl, 45 min, and 37.05 min while under these optimum conditions, the specific activity for FAEO on Pd/MWCNT was 2.67 mA cm-2 with a deviation of 6.83%. By optimizing the electrode preparation conditions, a conventional Pd/MWCNT catalyst showed higher performance than many bimetallic catalysts. Optimization of electrode preparation parameters is as important as catalyst design and is an inexpensive and facile method to improve electrocatalytic performance.

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Section: Electrochemical Evaluationsupporting

confidence: 60%

Optimization of electrode preparation conditions by response surface methodology for improved formic acid electrooxidation on Pd/MWCNT/GCE

Ulas

2023

Preprint

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“…224 These catalysts are typically composed of noble metals like platinum, palladium, or gold, 225 or even carbonbased materials like graphene or carbon nanotubes. 226 They provide a surface for glucose molecules to adsorb and undergo electron transfer, 224 leading to their oxidation. The electrocatalytic oxidation of glucose involves the application of an external electrical potential to drive the reaction.…”

Section: Glucose Oxidation Reactionmentioning

confidence: 99%

“…Electrocatalysts play a crucial role in facilitating the oxidation reaction by reducing the energy barrier required for glucose conversion . These catalysts are typically composed of noble metals like platinum, palladium, or gold, or even carbon-based materials like graphene or carbon nanotubes . They provide a surface for glucose molecules to adsorb and undergo electron transfer, leading to their oxidation.…”

Section: Aldehydes Oxidation Reactionmentioning

confidence: 99%

Review and Perspective of Nickel and Its Derived Catalysts for Different Electrochemical Synthesis Reactions in Alkaline Media for Hydrogen Production

Samanta,

Shekhawat,

Sahu

et al. 2023

Energy Fuels

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Hydrogen (H 2 ) is a promising alternative energy source, but its current production method through steam reforming is energy intensive and polluting. Water electrolysis, specifically the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), offers a cleaner option. Although HER is the favorable process, OER needs a larger overpotential, thereby hindering practical implementation. The use of expensive noble metal-based catalysts limits the application. The levelized cost of hydrogen can be lowered by replacing the anodic reaction with several innovative strategies. Alternative oxidation reactions have emerged as some of the most noteworthy new strategies. A critical analysis of electrochemical synthesis reactions (ESR) combining anodic chemical synthesis and cathodic hydrogen evolution is presented here for replacing the traditional OER with organic molecule oxidation. This review aims to explore nickel and nickel-based catalysts for different ESR reactions, such as alcohol, aldehydes, amines, and biomass-derived compounds, for energyefficient and cost-effective electrocatalytic hydrogen production. In this critical review, we present a clear picture of the challenges and bottlenecks associated with electrochemical synthesis reactions as a method of industrial hydrogen production needs. Finally, a perspective and challenges for future development of the hybrid water electrolysis techniques are demonstrated.

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Supported PbHfCd electrocatalysts over carbon-hydroxyapatite composite fabricated by precipitation and NaBH4 reduction methods for glucose electrooxidation

Koc

Kıvrak

2023

J Solid State Electrochem

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

Cited by 6 publications

References 56 publications

Optimization of electrode preparation conditions by response surface methodology for improved formic acid electrooxidation on Pd/MWCNT/GCE

Optimization of electrode preparation conditions by response surface methodology for improved formic acid electrooxidation on Pd/MWCNT/GCE

Review and Perspective of Nickel and Its Derived Catalysts for Different Electrochemical Synthesis Reactions in Alkaline Media for Hydrogen Production

Supported PbHfCd electrocatalysts over carbon-hydroxyapatite composite fabricated by precipitation and NaBH4 reduction methods for glucose electrooxidation

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