Publisher's Note

Sayed, Enas Taha; Olabi, Abdul Ghani; Wilberforce, Tabbi; Al-Murisi, Mohammed; Chae, Kyu-Jung; Abdelkareem, Mohammad Ali

doi:10.1016/j.jtice.2023.104772

Cited by 4 publications

(3 citation statements)

References 57 publications

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“…The Ni-CS electrocatalysts with varying metal weight percentages (5,10,15,20, and 25 wt%) were synthesized using a wet impregnation method [22]. The precursors of nickel were impregnated onto the CS at a temperature of 353 K. Subsequently, the provided sample was subjected to a drying process in an oven at a temperature of 383 K overnight.…”

Section: Synthesis Of Ni-cs Electrocatalystmentioning

confidence: 99%

“…This phenomenon has the potential to result in elevated reaction rates and enhanced conversion of ethanol to the anticipated outputs. Sayed et al [10] synthesized a standalone Ni sulfide nano-sheets electrode in the DEFC. The conclusive results indicate that the enhanced ethanol oxidation activity can be attributed to the function of sulfur in supplying electrons to Ni, thereby augmenting the charge transfer rates and electrical conductivity.…”

Section: Introductionmentioning

confidence: 99%

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Candle Soot as a Novel Support for Nickel Nanoparticles in the Electrocatalytic Ethanol Oxidation

Mansor,

Budiman,

Zainoodin

et al. 2024

Nanomaterials

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The enhancement of carbon-supported components is a crucial factor in augmenting the interplay between carbon-supported and metal-active components in the utilization of catalysts for direct ethanol fuel cells (DEFCs). Here, we propose a strategy for designing a catalyst by modifying candle soot (CS) and loading nickel onto ordered carbon soot. The present study aimed to investigate the effect of the Ni nanoparticles content on the electrocatalytic performance of Ni–CS, ultimately leading to the identification of a maximum composition. The presence of an excessive quantity of nickel particles leads to a decrease in the number of active sites within the material, resulting in sluggishness of the electron transfer pathway. The electrocatalyst composed of nickel and carbon support, with a nickel content of 20 wt%, has demonstrated a noteworthy current activity of 18.43 mA/cm2, which is three times that of the electrocatalyst with a higher nickel content of 25 wt%. For example, the 20 wt% Ni–CS electrocatalytic activity was found to be good, and it was approximately four times higher than that of 20 wt% Ni–CB (nickel–carbon black). Moreover, the chronoamperometry (CA) test demonstrated a reduction in current activity of merely 65.80% for a 20 wt% Ni–CS electrocatalyst, indicating electrochemical stability. In addition, this demonstrates the great potential of candle soot with Ni nanoparticles to be used as a catalyst in practical applications.

show abstract

Section: Synthesis Of Ni-cs Electrocatalystmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Candle Soot as a Novel Support for Nickel Nanoparticles in the Electrocatalytic Ethanol Oxidation

Mansor,

Budiman,

Zainoodin

et al. 2024

Nanomaterials

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show abstract

“…Recently, Direct ethanol fuel have been considered a promising way to produce green energy while respecting the environment [15,16] . In order to increase the effectiveness of direct ethanol fuel cells (DEFCs), current research efforts aim to avoid the poisoning of the surface of electrocatalysts, minimize the use of Pt‐based catalysts by replacing them with non‐noble metals, and enhance the energy efficiency of the ethanol oxidation reaction (EOR).…”

Section: Introductionmentioning

confidence: 99%

New and Ultra‐Rapid Approach for Electrosynthesis of Highly Efficient Catalysts of Poly(para‐phenylenediamine) Supported Copper Oxide for Ethanol Oxidation in Alkaline Medium

El Attar,

Bouljoihel,

Ezzahi

et al. 2023

ChemElectroChem

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Herein, a new and simple strategy based on electrochemical cascade reactions was used to prepare copper/poly(para‐phenylenediamine). The catalysts were prepared by a facile one‐pot synthesis via an electrochemical method in a solution containing monomer and copper in a suitable concentration using potentiostatic or galvanostatic mode. Using galvanostatic mode leads to the formation of nanodendritic shape of copper hydroxide‐copper oxide in contrast with potentiostatic mode which leads to a spherical form. The response toward ethanol oxidation was greatly affected by the morphology of the obtained nanocomposite. Indeed, the current density obtained when using potentiostatic mode is about 26.55 mA cm−2 at 1.05 V vs Ag/AgCl. This performance is about 2.4 times higher than of the electrocatalyst prepared by galvanostatic mode (11.09 mA cm−2 at 0.85 V). The durability and long‐term stability of the obtained electrocatalysts were investigated using chronoamperometry and cyclic voltammetry. The decrease in current density is about 19 % and 49 % for electrocatalysts prepared by galvanostatic and potentiostatic mode respectively, after 700 scans. Finally, ex–situ FTIR spectroscopy was conducted in order to understand the reaction mechanism of ethanol oxidation in alkaline medium. It demonstrates that Cu(OH)2−Cu2O@PpPD can perform the complete oxidation of ethanol molecules, leading to the formation of CO2 molecule as the final product. This study highlighted a new simple and facile approach for synthesizing electrocatalysts based on Cu(OH)2−Cu2O@PpPD for alcohol oxidation applications.

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Standalone nickel layered double hydroxide and nickel oxide electrodes as effective anodes in alkaline direct methanol fuel cell

Sayed

Abdelkareem

Wilberforce

et al. 2024

International Journal of Hydrogen Energy

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Publisher's Note

Cited by 4 publications

References 57 publications

Candle Soot as a Novel Support for Nickel Nanoparticles in the Electrocatalytic Ethanol Oxidation

Candle Soot as a Novel Support for Nickel Nanoparticles in the Electrocatalytic Ethanol Oxidation

New and Ultra‐Rapid Approach for Electrosynthesis of Highly Efficient Catalysts of Poly(para‐phenylenediamine) Supported Copper Oxide for Ethanol Oxidation in Alkaline Medium

Standalone nickel layered double hydroxide and nickel oxide electrodes as effective anodes in alkaline direct methanol fuel cell

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