Application of Nickel Foam in Electrochemical Systems: A Review

Ratsoma, Mpho S.; Poho, Boipelo L. O.; Makgopa, Katlego; Raju, Kumar; Modibane, Kwena D.; Jafta, Charl J.; Oyedotun, Kabir O.

doi:10.1007/s11664-023-10244-w

Cited by 19 publications

(3 citation statements)

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“…The growth or decoration of nanomaterials on NF is of great interest, primarily due to the unique properties of NF and its compatibility with a variety of nanomaterials. It also has other advantages in electrical conductivity, structural stability, and flexibility in the synthesis. − …”

Section: Design and Engineering Of Efficient Ni-based Mor Electrocata...mentioning

confidence: 99%

Boosting Hydrogen Evolution by Methanol Oxidation Reaction on Ni-Based Electrocatalysts: From Fundamental Electrochemistry to Perspectives

Li,

Wang

et al. 2024

ACS Energy Lett.

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Hydrogen production via electrocatalytic water splitting is hampered by the slow kinetics of the anodic oxygen evolution reaction (OER). To address this limitation, the electrochemical hydrogen evolution reaction (HER) can be boosted with the more favorable oxidation of small organic molecules ideally driven by renewable energies, producing valuable chemicals. In this context, coupling hydrogen production with the methanol oxidation reaction (MOR) with simultaneous formate production has garnered significant interest. Such a cost-effective electrocatalytic process, meeting the growing demand for energy storage and fuel production, requires developing cheap and efficient electrocatalysts. Given the knowledge gap between precious and nonprecious metal electrocatalysts, exemplified by nickel and its derived compounds, this review focuses on MOR from fundamental electrochemistry, materials design and synthesis, and activity-composition/structure relations. Despite significant advances, we still face formidable challenges in deciphering the intricate catalytic mechanism, elevating the activity and selectivity to new heights, and pioneering the development of scalable prototypes.

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Section: Design and Engineering Of Efficient Ni-based Mor Electrocata...mentioning

confidence: 99%

Boosting Hydrogen Evolution by Methanol Oxidation Reaction on Ni-Based Electrocatalysts: From Fundamental Electrochemistry to Perspectives

Li,

Wang

et al. 2024

ACS Energy Lett.

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Section: Introductionmentioning

confidence: 99%

“…Nickel foam (NF) is a versatile material that has recently gained significant attention as an electrode material in electrochemical sensors (Ratsoma et al, 2023). NF possesses a unique three-dimensional interconnected structure and a much larger electrochemically active surface area than traditional electrode materials (Chaudhari et al, 2017;Ratsoma et al, 2023). These properties make it a promising material to be used in electrochemical sensors due to its ability to provide more active electrochemical sites for reactions to occur, enhance material conductivity, and improve the overall electrochemical performance of the sensor with higher sensitivity, selectivity, and stability (Ratsoma et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Carbon-coated nickel foam for hypochlorous acid sensor

Sanjaya,

Riyanto,

Rahmawati

et al. 2023

EAM

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The electrochemical detection method of hypochlorous acid (HOCl) using carbon foam electrodes have been successfully developed. The carbon foam was prepared from carbon-coated nickel foam which is synthesized using a hydrothermal-carbonization method. SEM characterization indicated that the optimum synthesis of carbon-coated nickel foam has been achieved on the 4th layer coating process with an expected spherical structure, while characterization using FTIR and Raman spectroscopy confirmed the formation of graphitic material with D band and G band characteristics. An electroactive surface area of 0.0236 cm2 was achieved. Cyclic voltammetry of HOCl in 0.1 M phosphate buffer solution pH 6.0 showed the best current response for HOCl reduction occurs at a potential of -0.3 V (vs. Ag/AgCl). Further detection of HOCl using amperometry technique in the concentration range of 2-200 μg/mL showed good linearity with sensitivity of 9.112 mA/µg/L and an estimated detection limit of 1.96 µg/mL. Good repetition is indicated by the RSD value of 2.499 % (n=5). This developed sensor also showed good selectivity in the presence of interference compounds, such as FeCl2 and CuSO4. Besides, the determination of HOCl in tap water has been successfully conducted and generated a comparable result with the UV-VIS method (3.30 µg/mL hypochlorite). The results indicated that the developed sensor is promising for the detection of HOCl in environmental applications.

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