Enhanced electrochemical activity of Co3O4/Co9S8 heterostructure catalyst for water splitting

Khan, Nadeem Asghar; Ahmad, Iqbal; Rashid, Naghmana; Zafar, Muhammad Nadeem; Shehzad, Farooq Khurum; Ullah, Zahid; Ul‐Hamid, Anwar; Nazar, Muhammad Faizan; Junaid, Muhammad; Muhammad, Faheem; Shafqat, Syed Salman; Jabeen, Uzma; Dahshan, A.

doi:10.1016/j.ijhydene.2021.11.124

Cited by 43 publications

(8 citation statements)

References 67 publications

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“…The peaks at 1040 cm À1 and 1636 cm À1 are attributed to the CQO bond and the bending vibration mode of OH À , respectively. 35 A distinct peak observed at 2923 cm À1 corresponds to the tensile vibration mode of C-H. 36 In addition, a distinct broad band can be found around 3430 cm À1 , which is associated with the adsorbed water molecules 37 .…”

Section: Resultsmentioning

confidence: 99%

ZIF-67-derived Se-doped CoSe₂ grown on carbon nanofibers as oxygen electrocatalysts for rechargeable Zn–air batteries

Cui,

Xu,

Bai

et al. 2024

New J. Chem.

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Section: Resultsmentioning

confidence: 99%

ZIF-67-derived Se-doped CoSe₂ grown on carbon nanofibers as oxygen electrocatalysts for rechargeable Zn–air batteries

Cui,

Xu,

Bai

et al. 2024

New J. Chem.

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“…Scientists have created a variety of composites, including Co 3 O 4 /Co 9 S 8 , as electrocatalysts for the oxidation of water in earlier research 51 . These showed to be steady and effective at the same time.…”

Section: Resultsmentioning

confidence: 99%

“…Scientists have created a variety of composites, including Co 3 O 4 /Co 9 S 8 , as electrocatalysts for the oxidation of water in earlier research. 51 These showed to be steady and effective at the same time. Additionally, reports of Ni thin films exhibiting remarkable electrocatalytic oxygen evolution reactions have also been made.…”

Section: Analysis Of Electrochemical Performancementioning

confidence: 91%

Advancing energy and water solutions: Unleashing the potential of Nd₂S₃:Ni₉S₈ thin film for supercapacitors and sustainable water purification

Gul,

Ahmad,

Thomas

et al. 2023

Asia-Pacific J Chem Eng

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The research was done on the creation and use of bi‐metal sulfide thin film, Nd2S3:Ni9S8. 41 nm‐sized crystallites with 80% crystallinity were found in the material. The evaluated optical characteristics showed a 2.9 eV band gap energy. The presence of Nd3d, S2p, and Ni2p in the created material was confirmed by X‐ray photoelectron spectroscopy. Voltammetry tests were carried out to assess the electrochemical characteristics. With a value of 750 Fg−1, the findings obtained showed remarkable supercapacitive capability. Additionally, a thorough examination was done to learn more about the material's potential as a photocatalyst. Malachite green dye, fuberidazole, and phenol were used as environmental contaminants to test the thin films' photocatalytic degradation effectiveness. The highest degradation was found for fuberidazole with a rate constant of 2.46x10−2 min−1. The results demonstrated the versatility of thin films and their efficacy in degrading these pollutants, highlighting their potential for environmental remediation applications.

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“…Du et al reported Fe 3 O 4 /Co 3 S 4 nanosheets and explored them as a bifunctional catalyst. It attains 10 mA cm –2 current density with a cell potential of 1.65 V. Khan et al synthesized the Co 3 O 4 /Co 9 S 8 catalyst, and it attains 10 mA cm –2 current density with an onset potential of 1.46 V for total water splitting. However, their catalytic credentials need to be further improved.…”

Section: Introductionmentioning

confidence: 99%

“…Co 3 S 4 nanosheets43 and explored them as a bifunctional catalyst. It attains 10 mA cm −2 current density with a cell potential of 1.65 V. Khan et al synthesized the Co 3 O 4 /Co 9 S 8 catalyst,44 and it attains 10 mA cm −2 current density with an onset potential of 1.46 V for total water splitting. However, their catalytic credentials need to be further improved.Keeping in view the excellent bifunctional credentials achieved by oxide/sulfide hetero-structuring, we devised a novel self-supported heterostructure of FeCo2 S 4 /Co 3 O 4 .…”

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confidence: 99%

Metal–Organic Framework-Derived FeCo₂S₄/Co₃O₄ Heterostructure with Enhanced Electrocatalytic Performance for Oxygen Evolution and Hydrogen Evolution Reactions

Bhat

Majid

2023

Langmuir

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Herein, a versatile FeCo2S4/Co3O4 heterostructure consisting of zeolitic imidazolate framework ZIF-derived Co3O4 and FeCo-layered double hydroxide-derived Fe-doped Co sulfide is employed for the all-important alkaline full water splitting process. The heterostructure is prepared by combining pyrolysis and hydrothermal/solvothermal processes. The synthesized heterostructure possesses an electrocatalytically rich interface and renders excellent bifunctional catalytic performance. An overpotential of 139 mV for a standard cathodic current of 10 mA cm–2 with a low Tafel slope of 81 mV dec–1 is recorded for the hydrogen evolution reaction. An overpotential of 210 mV is observed for an anodic current of 20 mA cm–2 with a low Tafel slope of 75 mV dec–1 recorded for the oxygen evolution reaction. The full-symmetric two-electrode cell was capable of generating a current density of 10 mA cm–2 at a cell potential of 1.53 V and a low onset potential of 1.49 V. The symmetric cell architecture exhibits remarkable stability, as a negligible potential increase is observed for continuous water splitting over a 10 h period. With the reported performance, the heterostructure compares well with most of the excellent reported catalysts for alkaline bifunctional catalysts.

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Enhanced electrochemical activity of Co3O4/Co9S8 heterostructure catalyst for water splitting

Cited by 43 publications

References 67 publications

ZIF-67-derived Se-doped CoSe₂ grown on carbon nanofibers as oxygen electrocatalysts for rechargeable Zn–air batteries

ZIF-67-derived Se-doped CoSe₂ grown on carbon nanofibers as oxygen electrocatalysts for rechargeable Zn–air batteries

Advancing energy and water solutions: Unleashing the potential of Nd₂S₃:Ni₉S₈ thin film for supercapacitors and sustainable water purification

Metal–Organic Framework-Derived FeCo₂S₄/Co₃O₄ Heterostructure with Enhanced Electrocatalytic Performance for Oxygen Evolution and Hydrogen Evolution Reactions

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Enhanced electrochemical activity of Co3O4/Co9S8 heterostructure catalyst for water splitting

Cited by 43 publications

References 67 publications

ZIF-67-derived Se-doped CoSe2 grown on carbon nanofibers as oxygen electrocatalysts for rechargeable Zn–air batteries

ZIF-67-derived Se-doped CoSe2 grown on carbon nanofibers as oxygen electrocatalysts for rechargeable Zn–air batteries

Advancing energy and water solutions: Unleashing the potential of Nd2S3:Ni9S8 thin film for supercapacitors and sustainable water purification

Metal–Organic Framework-Derived FeCo2S4/Co3O4 Heterostructure with Enhanced Electrocatalytic Performance for Oxygen Evolution and Hydrogen Evolution Reactions

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ZIF-67-derived Se-doped CoSe₂ grown on carbon nanofibers as oxygen electrocatalysts for rechargeable Zn–air batteries

ZIF-67-derived Se-doped CoSe₂ grown on carbon nanofibers as oxygen electrocatalysts for rechargeable Zn–air batteries

Advancing energy and water solutions: Unleashing the potential of Nd₂S₃:Ni₉S₈ thin film for supercapacitors and sustainable water purification

Metal–Organic Framework-Derived FeCo₂S₄/Co₃O₄ Heterostructure with Enhanced Electrocatalytic Performance for Oxygen Evolution and Hydrogen Evolution Reactions