Surface modification of Ni foam by the dendrite Ni-Cu electrode for hydrogen evolution reaction in an alkaline solution

Lotfi, N.; Shahrabi, T.; Yaghoubinezhad, Yadollah; Darband, Gh. Barati

doi:10.1016/j.jelechem.2019.113350

Cited by 43 publications

(21 citation statements)

References 50 publications

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“…[ 128,129 ] In addition, the smaller Tafel slope and the overpotential at a certain current density can indicate better performance of amorphous catalysts, for which Tafel slopes are broadly used to present the rate‐determining steps (30, 40, and 120 mV dec −1 for the Tafel, Heyrovsky and Volmer rate‐determining steps, respectively). [ 130,131 ] Last but not least, the amorphous catalysts usually exhibit a lower ΔG H* , Tafel slope and overpotential, thereby exhibiting excellent water‐splitting performance.…”

Section: The Exceptionally Advantaged Nature Of Amorphous Catalysts Tmentioning

confidence: 99%

High Density and Unit Activity Integrated in Amorphous Catalysts for Electrochemical Water Splitting

et al. 2020

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Electrochemical water splitting is regarded as a most effective hydrogen production technique. In fact, quite a few exceptional electrocatalysts, processes, and even large‐scale demonstrations have been developed. In particular, some amorphous catalysts have become well‐known for their extraordinary performance on account of their disordered structure, numerous, uniformly distributed active sites with high unit activity and better stability that outshine their single‐crystalline counterparts. Herein, a review of recent research advances of amorphous catalysts used in electrocatalytic water splitting are provided, including both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Particularly, the scaled‐up application of amorphous catalysts with multifarious compositions and diverse heterostructures in electrolyzing water and the reason why amorphous catalysts exhibit excellent catalytic performance are emphasized on. In addition, the mechanism of water electrolysis and the evaluation criteria of catalytic properties are analyzed in detail. Finally, the broader development outlook of amorphous catalysts is discussed.

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Section: The Exceptionally Advantaged Nature Of Amorphous Catalysts Tmentioning

confidence: 99%

High Density and Unit Activity Integrated in Amorphous Catalysts for Electrochemical Water Splitting

et al. 2020

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“…H2 gas can be produced from either non-renewable conventional energy sources such as; hydrocarbon, natural gas and coal or from renewable energy sources such as; hydropower, solar energy, wind and biomass [5,6]. It is documented that a large reduction in the release of harmful emissions will occur if hydrogen is produced from renewable energy resources [7]. Electrolysis is the most common method that is used to produce H2 gas using water as a clean and renewable energy resource [8].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, molten salt does not need any additional heat because it maintains the required heat from the current passing through during electrolysis process if the system is well isolated. Researchers are exploring this field these days very deeply for the optimisation of conditions to produce hydrogen gas [7,16]. Selecting a suitable membrane material in molten hydroxide is considered very necessary.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical study of different membrane materials for the fabrication of stable, reproducible and reusable reference electrode

Al-Shara¹,

Sher

Iqbal

et al. 2020

Journal of Energy Chemistry

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 Fabrication of a reference electrode Ni/Ni(OH)2 from eutectic molten hydroxides.  Eutectic molten hydroxide (NaOH-KOH, 49-51 mol%) at temperature 300 o C was used.  Stability and reusability of electrode covered by mullite and alumina tube. Cyclic voltammetry analyses were carried out to authenticate the results. Stability and reusability of the novel electrode was checked for 9 and 3 days.

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“…Table 4 summarizes the deposition conditions and HER activity of state‐of‐the‐art noble‐metal‐based electrodes in an alkaline media. [ 76,77,83–92 ]…”

Section: Self‐supported Electrodes Prepared By Electrodepositionmentioning

confidence: 99%

Electrodeposition: An efficient method to fabricate self‐supported electrodes for electrochemical energy conversion systems

Kim

Han

et al. 2022

Exploration

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The development of electrocatalysts for energy conversion systems is essential for alleviating environmental problems and producing useful energy sources as alternatives to fossil fuels. Improving the catalytic performance and stability of electrocatalysts is a major challenge in the development of energy conversion systems. Moreover, understanding their electrode structure is important for enhancing the energy efficiency. Recently, binder-free self-supported electrodes have been investigated because the seamless contact between the electrocatalyst and substrate minimizes the contact resistance as well as facilitates fast charge transfer at the catalyst/substrate interface and high catalyst utilization. Electrodeposition is an effective and facile method for fabricating self-supported electrodes in aqueous solutions under mild conditions. Facile fabrication without a polymer binder and controlability of the compositional and morphological properties of the electrocatalyst make electrodeposition methods suitable for enhancing the performance of energy conversion systems. Herein, we summarize recent research on self-supported electrodes fabricated by electrodeposition for energy conversion reactions, particularly focusing on cathodic reactions of electrolyzer system such as hydrogen evolution, electrochemical CO 2 reduction, and electrochemical N 2 reduction reactions. The deposition conditions, morphological and compositional properties, and catalytic performance of the electrocatalyst are reviewed. Finally, the prospective directions of electrocatalyst development for energy conversion systems are discussed.

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Surface modification of Ni foam by the dendrite Ni-Cu electrode for hydrogen evolution reaction in an alkaline solution

Cited by 43 publications

References 50 publications

High Density and Unit Activity Integrated in Amorphous Catalysts for Electrochemical Water Splitting

High Density and Unit Activity Integrated in Amorphous Catalysts for Electrochemical Water Splitting

Electrochemical study of different membrane materials for the fabrication of stable, reproducible and reusable reference electrode

Electrodeposition: An efficient method to fabricate self‐supported electrodes for electrochemical energy conversion systems

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