Fabrication of highly dispersed bimetallic Ni-Mo@CNFs by sol–gel assisted electrospinning for methanol oxidation electrocatalysis

Thamer, Badr M.; Hameed, Meera Moydeen Abdul; Al‐Enizi, Abdullah M.

doi:10.1016/j.jallcom.2023.169956

Journal of Alloys and Compounds

2023

DOI: 10.1016/j.jallcom.2023.169956

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Fabrication of highly dispersed bimetallic Ni-Mo@CNFs by sol–gel assisted electrospinning for methanol oxidation electrocatalysis

Badr M. Thamer

Meera Moydeen Abdul Hameed

Abdullah M. Al‐Enizi

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Cited by 8 publications

References 55 publications

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Unlocking Catalytic Potential: Exploring the Impact of Thermal Treatment on Enhanced Electrocatalysis of Nanomaterials

Kogularasu,

Lee,

Sriram

et al. 2023

Angewandte Chemie

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In the evolving field of electrocatalysis, thermal treatment of nano‐electrocatalysts has become an essential strategy for performance enhancement. This review systematically investigates the impact of various thermal treatments on the catalytic potential of nano‐electrocatalysts. The focus encompasses an in‐depth analysis of the changes induced in structural, morphological, and compositional properties, as well as alterations in electro‐active surface area, surface chemistry, and crystal defects. By providing a comprehensive comparison of commonly used thermal techniques, such as annealing, calcination, sintering, pyrolysis, hydrothermal, and solvothermal methods, this review serves as a scientific guide for selecting the right thermal technique and favorable temperature to tailor the nano‐electrocatalysts for optimal electrocatalysis. The resultant modifications in catalytic activity are explored across key electrochemical reactions such as electrochemical (bio)sensing, catalytic degradation, oxygen reduction reaction, hydrogen evolution reaction, overall water splitting, fuel cells, and carbon dioxide reduction reaction. Through a detailed examination of the underlying mechanisms and synergistic effects, this review contributes to a fundamental understanding of the role of thermal treatments in enhancing electrocatalytic properties. The insights provided offer a roadmap for future research aimed at optimizing the electrocatalytic performance of nanomaterials, fostering the development of next‐generation sensors and energy conversion technologies.

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Unlocking Catalytic Potential: Exploring the Impact of Thermal Treatment on Enhanced Electrocatalysis of Nanomaterials

Kogularasu,

Lee,

Sriram

et al. 2023

Angewandte Chemie

View full text Add to dashboard Cite

show abstract

Unlocking Catalytic Potential: Exploring the Impact of Thermal Treatment on Enhanced Electrocatalysis of Nanomaterials

Kogularasu,

Lee,

Sriram

et al. 2023

Angew Chem Int Ed

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Outstanding Activity and Durability of Supported NiCo₂O₄ Nanoparticles for Direct Ethanol Fuel Cells

Afify,

Hameed,

Mohamed

et al. 2024

Applied Organom Chemis

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The rational design of noble metal‐free electrocatalysts represents one of the basic stones for fuel cell development. With the exploration of eco‐friendly nanomaterials for the investigated alcohol oxidation process, nickel‐based electrodes have been recognized as the most auspicious anodes with promoted activity and stability. In this work, a series of NiCo2O4 nanoparticles were deposited onto graphite sheets (NiCo2O4/T) introducing varied proportions of cobalt oxide species. Co‐precipitation protocol of the respective metallic hydroxides onto the carbonaceous support was followed with consecutive annealing in an air atmosphere at 400°C. The fabricated mixed metallic oxide nanopowder was physically studied using X‐ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X‐ray analysis (EDX), X‐ray photoelectron spectroscopy (XPS), and selected area electron diffraction (SAED). Uniformly arranged nanoparticles were observed on graphite surface as evidenced by SEM and TEM. The cubic lattice structure of formed NiCo2O4 crystals was also confirmed by XRD through the defined peaks of binary metallic oxides clarifying their successful preparation scheme. The electrocatalytic properties of these NiCo2O4/T nanocatalysts were evaluated for oxidizing ethanol molecules in basic solution. Pronounced oxidation current densities were remarkably measured at NiCo2O4/T electrodes in relation to that at NiO/T. Differing the introduced cobalt oxide content into the synthesized nanocatalyst significantly controlled its catalytic performance. NiCo2O4/T‐20 exhibited the highest activity and stability among the prepared nanomaterials. Much decreased charge transfer resistances were also recorded at this electrode demonstrating its promoted electron transfer characteristics. This work could provide a reasonable route for the simple synthesis of comparable transition metallic oxides with promising attitudes for energy generation purposes.

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Fabrication of highly dispersed bimetallic Ni-Mo@CNFs by sol–gel assisted electrospinning for methanol oxidation electrocatalysis

Cited by 8 publications

References 55 publications

Unlocking Catalytic Potential: Exploring the Impact of Thermal Treatment on Enhanced Electrocatalysis of Nanomaterials

Unlocking Catalytic Potential: Exploring the Impact of Thermal Treatment on Enhanced Electrocatalysis of Nanomaterials

Unlocking Catalytic Potential: Exploring the Impact of Thermal Treatment on Enhanced Electrocatalysis of Nanomaterials

Outstanding Activity and Durability of Supported NiCo₂O₄ Nanoparticles for Direct Ethanol Fuel Cells

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Fabrication of highly dispersed bimetallic Ni-Mo@CNFs by sol–gel assisted electrospinning for methanol oxidation electrocatalysis

Cited by 8 publications

References 55 publications

Unlocking Catalytic Potential: Exploring the Impact of Thermal Treatment on Enhanced Electrocatalysis of Nanomaterials

Unlocking Catalytic Potential: Exploring the Impact of Thermal Treatment on Enhanced Electrocatalysis of Nanomaterials

Unlocking Catalytic Potential: Exploring the Impact of Thermal Treatment on Enhanced Electrocatalysis of Nanomaterials

Outstanding Activity and Durability of Supported NiCo2O4 Nanoparticles for Direct Ethanol Fuel Cells

Contact Info

Product

Resources

About

Outstanding Activity and Durability of Supported NiCo₂O₄ Nanoparticles for Direct Ethanol Fuel Cells