Enhanced alkaline/seawater hydrogen evolution reaction performance of NiSe2 by ruthenium and tungsten bimetal doping

Dang, Yuechen; Wang, Guangqing; Li, Xiang; Ma, Xu; Feng, Yong; Wang, Chuantao; Gao, Loujun; Fu, Feng

doi:10.1016/j.ijhydene.2023.01.217

Cited by 22 publications

(2 citation statements)

References 49 publications

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“…Doping is another way to improve HER performance with low noble metal content. Fu's group compared the possible HER catalytic mechanism by operando EIS technique and found that the phase angle of bimetal doped NiSe 2 catalyst named Ru,W-NiSe 2 displayed a relatively large downward trend in the low frequency than single metal doped NiSe 2 as the bias potential increased [56]. This phenomenon attributed to Ru,W-NiSe 2 have a faster charge transfer process at the catalyst-electrolyte interface, which is the rate-determining rate rather than the electron transfer step.…”

Section: Design Principles Of Cathode and Anodementioning

confidence: 99%

The Recent Progresses of Electrodes and Electrolysers for Seawater Electrolysis

Zhang,

Zhou,

Chen

et al. 2024

Nanomaterials

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The utilization of renewable energy for hydrogen production presents a promising pathway towards achieving carbon neutrality in energy consumption. Water electrolysis, utilizing pure water, has proven to be a robust technology for clean hydrogen production. Recently, seawater electrolysis has emerged as an attractive alternative due to the limitations of deep-sea regions imposed by the transmission capacity of long-distance undersea cables. However, seawater electrolysis faces several challenges, including the slow kinetics of the oxygen evolution reaction (OER), the competing chlorine evolution reaction (CER) processes, electrode degradation caused by chloride ions, and the formation of precipitates on the cathode. The electrode and catalyst materials are corroded by the Cl− under long-term operations. Numerous efforts have been made to address these issues arising from impurities in the seawater. This review focuses on recent progress in developing high-performance electrodes and electrolyser designs for efficient seawater electrolysis. Its aim is to provide a systematic and insightful introduction and discussion on seawater electrolysers and electrodes with the hope of promoting the utilization of offshore renewable energy sources through seawater electrolysis.

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Section: Design Principles Of Cathode and Anodementioning

confidence: 99%

The Recent Progresses of Electrodes and Electrolysers for Seawater Electrolysis

Zhang,

Zhou,

Chen

et al. 2024

Nanomaterials

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“…By co-doping with other metal elements, the electrocatalytic performance of Ru-based materials can be optimized without a significant increase in cost. [8][9][10] Co-doping not only offers additional active sites but also introduces beneficial electronic effects and structural modifications, thereby enhancing the catalytic activity and stability of the material. This approach paves the way for the design of highly efficient and cost-effective HER electrocatalysts.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Effects of Dual‐Doping with Ni and Ru in Monolayer VS₂ Nanosheet: Unleashing Enhanced Performance for Acidic HER through Defects and Strain

Wang,

Chen,

Liu

et al. 2024

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Amidst the escalating quest for clean energy, the hydrogen evolution reaction (HER) in acidic conditions has taken center stage, catalyzing the search for advanced electrocatalysts. The efficacy of these materials is predominantly dictated by the active site density on their surfaces. The propensity is leveraged for monolayer architectures to introduce defects, enhancing surface area, and increasing active sites. Doping enhances defects and fine‐tunes catalyst activity. In this vein, defect‐enriched monolayer nanosheets doped with nickel and a trace amount of ruthenium in VS2 (SL‐Ni‐Ru‐VS2) are engineered and characterized. Evaluation in 0.5 m H2SO4 solution unveils that the catalyst achieves overpotentials as low as 20 and 41 mV at current densities of ‐10 and ‐100 mA cm⁻2. Impressively, the catalyst maintains a mass activity of 13.08 A mg⁻¹Ru, even with minimal Ru incorporation, indicating exceptional catalytic efficiency. This monolayer catalyst sustains its high activity at lower overpotentials, demonstrating its practical applicability. The comprehensive analysis, which combines experimental data and computational simulations, indicates that the co‐doping of Ni and Ru enhances the electrocatalytic properties of VS2. This research offers a strategic framework for crafting cutting‐edge electrocatalysts specifically designed for enhanced performance in the HER.

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Catalysts for Direct Seawater Electrolysis: Current Status and Future Prospectives

Kasani,

Maric,

Bonville

et al. 2024

ChemElectroChem

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Global freshwater shortage is forcing researchers to focus on seawater electrolysis for large‐scale green hydrogen production. Seawater purification by reverse osmosis (RO) for use in conventional water electrolyzers (WEs) is another approach, however, that requires large capital investments. Alternatively, seawater can be used directly in a novel type of anion exchange membrane WE (AEMWE) which is currently under development. The AEMWEs have the advantage of using non‐precious catalysts and are less sensitive to the presence of impurities. Success in this early‐stage technology relies on the development of efficient and durable electrocatalysts. This paper provides a comprehensive review of the status and future trends for developing catalysts operating directly with seawater. Catalysts are ranked based on their activity and durability at high current densities of 500 mAcm−2 and 1000 mAcm−2. Notable anode catalysts, S−NiFe2O4, and NiFe LDH, exhibit reduced OER overpotentials of 287 mV and 296 mV at 1000 mAcm−2. Top‐performing cathode HER catalysts include HW−NiMoN‐2 h (132 mV) and Pt−Co−Mo (117 mV) at 1000 mAcm−2. Bifunctional catalysts, such as CoxPv@NC can operate below an overall voltage of 2 V at 1000 mAcm−2. This comparative analysis provides researchers and professionals with critical insights for advancing direct seawater electrolysis.

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Enhanced alkaline/seawater hydrogen evolution reaction performance of NiSe2 by ruthenium and tungsten bimetal doping

Cited by 22 publications

References 49 publications

The Recent Progresses of Electrodes and Electrolysers for Seawater Electrolysis

The Recent Progresses of Electrodes and Electrolysers for Seawater Electrolysis

Synergistic Effects of Dual‐Doping with Ni and Ru in Monolayer VS₂ Nanosheet: Unleashing Enhanced Performance for Acidic HER through Defects and Strain

Catalysts for Direct Seawater Electrolysis: Current Status and Future Prospectives

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Enhanced alkaline/seawater hydrogen evolution reaction performance of NiSe2 by ruthenium and tungsten bimetal doping

Cited by 22 publications

References 49 publications

The Recent Progresses of Electrodes and Electrolysers for Seawater Electrolysis

The Recent Progresses of Electrodes and Electrolysers for Seawater Electrolysis

Synergistic Effects of Dual‐Doping with Ni and Ru in Monolayer VS2 Nanosheet: Unleashing Enhanced Performance for Acidic HER through Defects and Strain

Catalysts for Direct Seawater Electrolysis: Current Status and Future Prospectives

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Synergistic Effects of Dual‐Doping with Ni and Ru in Monolayer VS₂ Nanosheet: Unleashing Enhanced Performance for Acidic HER through Defects and Strain