W/Ni3(PO4)2@NC/NF nanorods via electrodeposition with carbonization as a bifunctional catalyst for electrocatalytic water splitting

Wu, Liyan; Cen, Jianmei; Ali, Asad; Li, Jiecai; Shen, Pei Kang

doi:10.1016/j.jelechem.2021.115877

Cited by 7 publications

(3 citation statements)

References 43 publications

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“…The overall water-splitting performance of the CWA//CWA cell is compared with recently reported cobalt and tungsten-based bifunctional catalysts which are used for overall water splitting (Figure d and Table S3). − Figure e,f shows the optical image of overall water splitting of the CWA//CWA cell at 2.75 V potential and reveals that vigorous gas (both H 2 and O 2 ) evolutions were produced and released from the surface of the electrode.…”

Section: Resultsmentioning

confidence: 99%

Multifunctional CoWO₄ 2D Array Electrode for Electrocatalytic Overall Water Splitting and Supercapacitor Application

Arumugam,

Murugesan,

Chettiannan

et al. 2024

Energy Fuels

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Rational design and construction of 2D materials play a crucial role in energy storage and conversion technologies. Herein, we used a cation-exchange strategy, followed by a thermal treatment to develop CoWO 4 2D sheets using Co-MOF as a template. The porous rough CoWO 4 2D sheets integrated on the nickel foam displayed an excellent electrocatalytic performance toward oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) at an overpotential of 177 and 139 mV to realize the benchmark current density of 10 mA cm −1 . Moreover, we demonstrated the OER and HER performance in a single cell using 2D-CoWO 4 @NF as a cathode and an anode and delivered 10 mA cm -2 current density at a cell potential of 1.51 V. The supercapacitor performance of 2D-CoWO 4 @NF was also investigated, which exhibited a specific capacity of 1196.7 C g −1 (2659.3 F g −1 ) at a current density of 3 A g −1 in a three-electrode system. An asymmetric device was constructed using 2D-CoWO 4 @NF as the positive and activated charcoal (AC) as the negative electrode, which delivered an energy density of 79 W h kg −1 at a power density of 2.25 kW kg −1 .

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Section: Resultsmentioning

confidence: 99%

Multifunctional CoWO₄ 2D Array Electrode for Electrocatalytic Overall Water Splitting and Supercapacitor Application

Arumugam,

Murugesan,

Chettiannan

et al. 2024

Energy Fuels

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“…The W 4f XPS spectra of WS 2 @W-CoP x (Figure 5c) show a slight downshift in the binding energy of W 4+ along with an increase in the strength that may be due to the modulation of electronic structure by the reduction process in HER. [61] The much stronger strength of the W 6+ can be seen in the samples post-OER compared with the post-HER ones, implying that more oxidized W species were generated in the oxidation process. [62] As depicted in Figure 5d, Table S6, Supporting Information, the intensity of Co 3+ species in the Co 2p spectra increased after OER, implying the possibility of the formation of CoOOH, which can serve as the active phase to further boost the OER performance.…”

Section: Ows Performancementioning

confidence: 99%

Interfacial and Electronic Modulation of W Bridging Heterostructure Between WS₂ and Cobalt‐Based Compounds for Efficient Overall Water Splitting

Yu,

Li,

Fang

et al. 2023

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The development of high performance electrocatalysts for effective hydrogen production is urgently needed. Herein, three hybrid catalysts formed by WS2 and Co‐based metal–organic frameworks (MOFs) derivatives are constructed, in which the small amount of W in the MOFs derivatives acts as a bridge to provide the charge transfer channel and enhance the stability. In addition, the effects of the surface charge distribution on the catalytic performance are fully investigated. Due to the optimal interfacial electron coupling and rearrangement as well as its unique porous morphology, WS2@W‐CoPx exhibits superior bifunctional performance in alkaline media with low overpotentials in hydrogen evolution reaction (HER) (62 mV at 10 mA cm−2) and oxygen evolution reaction (OER) (278 mV at 100 mA cm−2). For overall water splitting (OWS), WS2@W‐CoPx only requires a cell voltage of 1.78 V at 50 mA cm−2 and maintains good stability within 72 h. Density functional theory calculations verify that the combination of W‐CoPx with WS2 can effectively enhance the activity of OER and HER with weakened OH (or O) adsorption and enhanced H atom adsorption. This work provides a feasible idea for the design and practical application of WS2 or phosphide‐based catalysts in OWS.

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“…The electrochemical behaviour is influenced by the presence of nickel ions, which facilitates the essential hydrogen adsorption and desorption processes. 36 But limitations associated with Ni 3 (PO 4 ) 2 must be solved, such as resolving the poor electrical conductivity and optimizing the electrochemical effectiveness in practical ESDs. 37 Nonetheless, Ni 3 (PO 4 ) 2 study and fabrication as a battery-graded electrode has the potential to advance the area of battery technology and contribute to building more efficient, resilient, and ecological energy storage systems.…”

Section: Introductionmentioning

confidence: 99%

A tri-material trifecta: designing a high-performance electrode for asymmetric supercapacitors and an electrocatalyst for HER applications with Ni₃(PO₄)₂–NbPO₄/CNT nanocomposites

Hasan¹,

Iqbal²,

Afzal³

et al. 2023

New J. Chem.

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W/Ni3(PO4)2@NC/NF nanorods via electrodeposition with carbonization as a bifunctional catalyst for electrocatalytic water splitting

Cited by 7 publications

References 43 publications

Multifunctional CoWO₄ 2D Array Electrode for Electrocatalytic Overall Water Splitting and Supercapacitor Application

Multifunctional CoWO₄ 2D Array Electrode for Electrocatalytic Overall Water Splitting and Supercapacitor Application

Interfacial and Electronic Modulation of W Bridging Heterostructure Between WS₂ and Cobalt‐Based Compounds for Efficient Overall Water Splitting

A tri-material trifecta: designing a high-performance electrode for asymmetric supercapacitors and an electrocatalyst for HER applications with Ni₃(PO₄)₂–NbPO₄/CNT nanocomposites

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W/Ni3(PO4)2@NC/NF nanorods via electrodeposition with carbonization as a bifunctional catalyst for electrocatalytic water splitting

Cited by 7 publications

References 43 publications

Multifunctional CoWO4 2D Array Electrode for Electrocatalytic Overall Water Splitting and Supercapacitor Application

Multifunctional CoWO4 2D Array Electrode for Electrocatalytic Overall Water Splitting and Supercapacitor Application

Interfacial and Electronic Modulation of W Bridging Heterostructure Between WS2 and Cobalt‐Based Compounds for Efficient Overall Water Splitting

A tri-material trifecta: designing a high-performance electrode for asymmetric supercapacitors and an electrocatalyst for HER applications with Ni3(PO4)2–NbPO4/CNT nanocomposites

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Multifunctional CoWO₄ 2D Array Electrode for Electrocatalytic Overall Water Splitting and Supercapacitor Application

Multifunctional CoWO₄ 2D Array Electrode for Electrocatalytic Overall Water Splitting and Supercapacitor Application

Interfacial and Electronic Modulation of W Bridging Heterostructure Between WS₂ and Cobalt‐Based Compounds for Efficient Overall Water Splitting

A tri-material trifecta: designing a high-performance electrode for asymmetric supercapacitors and an electrocatalyst for HER applications with Ni₃(PO₄)₂–NbPO₄/CNT nanocomposites