Development of ZnCo alloy enclosed in N-doped carbon with hexagonal close packing crystal phase inspires potential oxygen evolution reaction

Energy‐saving strategies and programs have been developed by the appropriate organizations in response to rising concerns about the pollution created by fossil fuels in the environment. Compared to conventional batteries, supercapacitors have several advantages than other, including faster charge and discharge times, higher power density, a longer cycle life, and fever negative effects on the environment. Researchers explored perovskite as a novel class of eco‐friendly electrodes for energy conversion devices. In this study, we developed ZnMnO3 via a sol gel route for supercapacitor application. The phases, structure, valance, morphology and surface of the material are determined by X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and Brunauer Emmett Teller (BET), respectively. The electrochemical behavior manifested that the fabricated perovskite exhibited high capacitive efficiency of 889 F g−1 at 1 A g−1. The GCD stability test displays the highest capacitive retention of 97 % after 5000 cycles and shows prolong the stability of 50 h. Our findings suggest that the perovskite exhibited the fascinating feature for supercapacitor application to replace the other polluted source of energy.

show abstract

“…The size of the fabricated material was determined with Debye Scherrer eq. 7. [51–56]

\vcenter{\openup.5em\halign{$\displaystyle{#}$\cr {\bf D}={\rm \ }{{{\bf K \lambda }{\rm \ }}\over{{\bf \beta c o s}{\rm \ }{\bf \theta }{\rm \ }}}\hfill\cr}}

…”

Section: Resultsmentioning

confidence: 99%

Novel Zn/Mn‐Based Perovskite (ZnMnO₃) as Fabricated by a Sol‐Gel Method for Energy Storage Devices

Farid¹,

Saeed

Gouadria

et al. 2023

ChemistrySelect

Self Cite

View full text Add to dashboard Cite

show abstract

“…Electrochemical active surface area (ECSA) analysis was employed to determine the double layer capacitance ( C dl ) of the electrocatalyst. ECSA regarding the electrocatalyst was computed with the following eq . , boldE boldC boldS boldA = bold-italicC boldd boldl bold-italicC bolds boldp …”

Section: Methodsmentioning

confidence: 99%

“…ECSA regarding the electrocatalyst was computed with the following eq 5. 51,52 Scheme 2. Scheme for the Synthesis of Ag 2 Te via the Hydrothermal Approach EIS determined the resistivity of the fabricated electrocatalyst at 100 Hz to 100 KHz at an applied voltage of 0.4 V. For further investigation regarding the diffusional property of the electrolyte ion, it is assessed with Bode's plot.…”

Section: Fabrication Of Electrodementioning

confidence: 99%

Effect of Ag Content on the Electrochemical Performance of Ag₂Te Nanostructures Synthesized by Hydrothermal Route for Supercapacitor Applications

et al. 2023

Self Cite

View full text Add to dashboard Cite

A massive amount of power is required to meet the worldwide need for gratifying human aspirations. As a result, the possible effect on the energy storage equipment is crucial to ensure a steady supply of energy. However, a supercapacitor is a potential device that provides a sustainable source of energy. In the current work, we presented a fabrication of Ag 2 Te at different concentrations of 0.006, 0.012, 0.025, 0.05, and 0.1 M via a hydrothermal approach for energy storage devices. A variety of analytical techniques were employed to assess its structure, morphology, and textural property regarding the fabricated electrode. Among different electrode materials, the Ag 0.025 Te electrode exhibited the large C s of 711.86 F g −1 , E d of 35.12 W h Kg −1 , and P d of 298.4 W Kg −1 at a current density of 1 A g −1 . The stability test of Ag 0.025 Te shows 92.96% retention of capacitance over 5000 GCD cycles with little destruction in the structure as determined by XRD. EIS responses indicated that the improved performance in 1.0 M KOH is because of low hydration sphere radius, strong ionic conductivity of K + , and less electrode resistance. The encouraging results suggest that the Ag 0.025 Te nanorod might provide an ideal cathode material for supercapacitor applications.

show abstract

“…13,14 The two processes in the electrolysis of water are the hydrogen evolution reaction (HER) as the result of reduction at the cathode and the oxygen evolution reaction (OER) due to oxidation at the anode. [15][16][17][18][19] A potential difference of 1.23 V between anode and cathode is required to drive the complete water splitting reaction. On the other hand, a real water electrolyzer requires a significantly higher voltage due to the higher overpotential on both electrodes.…”

Section: Introductionmentioning

confidence: 99%

“…Among all, the electrochemical splitting of water into H 2 and O 2 is often regarded as a vital stage in extraordinary nonconventional energy production, energy storage, and distribution 13,14 . The two processes in the electrolysis of water are the hydrogen evolution reaction (HER) as the result of reduction at the cathode and the oxygen evolution reaction (OER) due to oxidation at the anode 15‐19 . A potential difference of 1.23 V between anode and cathode is required to drive the complete water splitting reaction.…”

Section: Introductionmentioning

confidence: 99%

SnTe nanomaterial decorated over graphene nanosheet for robust OER activity

Manzoor

Nisa

Abid

et al. 2022

Intl J of Energy Research

Self Cite

View full text Add to dashboard Cite

Hydrogen production via electrocatalytic water splitting has fascinated great attention because of its eco-friendly nature and will be used as a renewable energy resource for the next decade. Despite marvelous efforts, we report the novel GO/SnTe nanocomposite fabricated via a simple chemical reduction approach for electrocatalytic water splitting. All the synthesized electrocatalysts are analyzed via different techniques. Furthermore, the electrochemical performance of fabricated electrode material employed on fluorine-doped tin oxide was investigated with linear sweep voltammetry, cyclic voltammetry, chronoamperometry, and electrochemical active surface area to analyze the kinetics mechanism, active sites, and stability of the material using 1.0 M potassium hydroxide. The electrochemical result of the nanocomposite indicates a remarkable overpotential of 226 mV at 10 mA cm À2 current density with a Tafel slope of 53 mV dec À1 . Also, the nanocomposite has a 1.55 V lower onset potential vs reversible hydrogen electrode, and high stability of 180 hours. All these characteristics suggest that the electrocatalyst has potential for the oxidation reaction.

show abstract

Development of ZnCo alloy enclosed in N-doped carbon with hexagonal close packing crystal phase inspires potential oxygen evolution reaction

Cited by 37 publications

References 46 publications

Novel Zn/Mn‐Based Perovskite (ZnMnO₃) as Fabricated by a Sol‐Gel Method for Energy Storage Devices

Novel Zn/Mn‐Based Perovskite (ZnMnO₃) as Fabricated by a Sol‐Gel Method for Energy Storage Devices

Effect of Ag Content on the Electrochemical Performance of Ag₂Te Nanostructures Synthesized by Hydrothermal Route for Supercapacitor Applications

SnTe nanomaterial decorated over graphene nanosheet for robust OER activity

Contact Info

Product

Resources

About

Development of ZnCo alloy enclosed in N-doped carbon with hexagonal close packing crystal phase inspires potential oxygen evolution reaction

Cited by 37 publications

References 46 publications

Novel Zn/Mn‐Based Perovskite (ZnMnO3) as Fabricated by a Sol‐Gel Method for Energy Storage Devices

Novel Zn/Mn‐Based Perovskite (ZnMnO3) as Fabricated by a Sol‐Gel Method for Energy Storage Devices

Effect of Ag Content on the Electrochemical Performance of Ag2Te Nanostructures Synthesized by Hydrothermal Route for Supercapacitor Applications

SnTe nanomaterial decorated over graphene nanosheet for robust OER activity

Contact Info

Product

Resources

About

Novel Zn/Mn‐Based Perovskite (ZnMnO₃) as Fabricated by a Sol‐Gel Method for Energy Storage Devices

Novel Zn/Mn‐Based Perovskite (ZnMnO₃) as Fabricated by a Sol‐Gel Method for Energy Storage Devices

Effect of Ag Content on the Electrochemical Performance of Ag₂Te Nanostructures Synthesized by Hydrothermal Route for Supercapacitor Applications