CuFe electrocatalyst for hydrogen evolution reaction in alkaline electrolysis

Bhavanari, Mallikarjun; Lee, Kan-Rong; Tseng, Chung-Jen; Tang, I-Hsuan; Chen, Hao-Hsuan

doi:10.1016/j.ijhydene.2021.01.227

Cited by 27 publications

(15 citation statements)

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“…On the other hand, long-term use of carbon anode GDL may have some limitations due to stability problems associated with the fact that OH − ions are excellent nucleophilic intermediates and accelerate the carbon degradation [54]. On the cathode side, carbon paper [48,53,55], Ni [56,57], or SS [52] foams are often used as electrode supports.…”

Section: Gas Diffusion Layersmentioning

confidence: 99%

Recent Advances in Alkaline Exchange Membrane Water Electrolysis and Electrode Manufacturing

et al. 2021

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Water electrolysis to obtain hydrogen in combination with intermittent renewable energy resources is an emerging sustainable alternative to fossil fuels. Among the available electrolyzer technologies, anion exchange membrane water electrolysis (AEMWE) has been paid much attention because of its advantageous behavior compared to other more traditional approaches such as solid oxide electrolyzer cells, and alkaline or proton exchange membrane water electrolyzers. Recently, very promising results have been obtained in the AEMWE technology. This review paper is focused on recent advances in membrane electrode assembly components, paying particular attention to the preparation methods for catalyst coated on gas diffusion layers, which has not been previously reported in the literature for this type of electrolyzers. The most successful methodologies utilized for the preparation of catalysts, including co-precipitation, electrodeposition, sol–gel, hydrothermal, chemical vapor deposition, atomic layer deposition, ion beam sputtering, and magnetron sputtering deposition techniques, have been detailed. Besides a description of these procedures, in this review, we also present a critical appraisal of the efficiency of the water electrolysis carried out with cells fitted with electrodes prepared with these procedures. Based on this analysis, a critical comparison of cell performance is carried out, and future prospects and expected developments of the AEMWE are discussed.

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Section: Gas Diffusion Layersmentioning

confidence: 99%

Recent Advances in Alkaline Exchange Membrane Water Electrolysis and Electrode Manufacturing

et al. 2021

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“…S1a, ESI†) appearing at 24.0° (006), 32.9° (101), 35.5° (009) and 38.7° (015) for the CuFe-LDHs and CuFe-LDHm are in accordance with the standard LDH (JCPDS No. 50-0235), 17,18 indicating the successful preparation of these two electrocatalysts. The PXRD pattern of Pt@CuFe-LDHm is similar to that of CuFe-LDHm, and no diffraction peaks attributed to Pt species are detected because of its ultralow content (1.1 wt%).…”

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confidence: 94%

Metal–organic framework-derived 2D layered double hydroxide ultrathin nanosheets for efficient electrocatalytic hydrogen evolution reaction

Song

Chen

et al. 2022

Chem. Commun.

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“…Hydrogen seems critical to the future as an energy carrier, an aspect of energy sustainability, and a renewable (environmentally friendly) energy source. [ 1–7 ] Therefore, research studies continue to develop hydrogen production technologies. [ 1–3 ]…”

Section: Introductionmentioning

confidence: 99%

“…In an HHO generator, atoms released by water electrolysis bind 2H 2 O to 2H 2 and O 2 . [ 4–6 ] Just like hydrogen, HHO gas is widely used in industrial applications, such as in fuel cells and hydrogen welding machines; it can also be used as a fuel additive for HHO gas, gasoline, and diesel. [ 5,6,8,9 ]…”

Section: Introductionmentioning

confidence: 99%

“…[ 10 ] Redox reactions flow at the electrodes, causing the release of hydrogen and oxygen at the cathode and the anode electrodes. [ 2–13 ] Redox reactions in both neutral and alkaline solutions at 25 °C are shown in Equation (1), (2), and (3)

Cathodic reaction: {2 H}_{2} {O + 2 e}^{-} \to {normalH}_{2} + 2 {OH}^{-}

Anodic reaction: 2 {OH}^{-} \to 1 / 2 {normalO}_{2} + {normalH}_{2} {O + 2 e}^{-}

Total reaction: {normalH}_{2} O \to {normalH}_{2} + 1 / 2 {normalO}_{2}

…”

Section: Introductionmentioning

confidence: 99%

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The Influence of Magnetic Field on Newly Designed Oxyhydrogen and Hydrogen Production by Water Electrolysis

2021

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Herein, new prototypes of a dry cell and an H2 generator are designed to produce hydrogen and HHO (oxyhydrogen) gas, and the effect of a magnetic field on both systems is examined. Experiments are conducted in both systems; a 3.5% potassium hydroxide electrolyte is chosen because it is an alkaline type of solution with a high dissociation rate. NdFeB magnets with magnetic fluxes of 1.2 and 1.6 T are added to both systems to reveal the effect of the Lorentz force on gas production. The flow rates of HHO gas in the productions under 1.2 and 1.6 T in the HHO system are 680 and 730 ml min−1, respectively. These values show that the flow velocities were 15.4% (1.2 T) and 23% (1.6 T) greater, respectively than the values recorded without a magnetic field (MF). Additionally, the percentage of hydrogen production increased by 4% for 1.2 T and 11% for 1.6 T compared to the measured value without the MF. In addition, production costs are calculated for both systems in the study: the energy required to obtain the same flow rate as the comparison examples in the literature was lower.

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CuFe electrocatalyst for hydrogen evolution reaction in alkaline electrolysis

Cited by 27 publications

References 50 publications

Recent Advances in Alkaline Exchange Membrane Water Electrolysis and Electrode Manufacturing

Recent Advances in Alkaline Exchange Membrane Water Electrolysis and Electrode Manufacturing

Metal–organic framework-derived 2D layered double hydroxide ultrathin nanosheets for efficient electrocatalytic hydrogen evolution reaction

The Influence of Magnetic Field on Newly Designed Oxyhydrogen and Hydrogen Production by Water Electrolysis

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