Innovations in Electrocatalysts, Hybrid Anodic Oxidation, Eelectrolyzers for Enhanced Direct Seawater Electrolysis

Energy & Environmental Science, Год журнала: 2024, Номер 17(19), С. 6897 - 6942

Опубликована: Янв. 1, 2024

This review focuses on the latest developments in direct seawater electrolysis, specifically electrocatalysts, hybrid anodic oxidation, and electrolyzers, providing a glimpse into future of environmentally friendly hydrogen generation.

Язык: Английский

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ZIF-67 derivatives in electrocatalysis

Coordination Chemistry Reviews, Год журнала: 2024, Номер 523, С. 216296 - 216296

Опубликована: Ноя. 2, 2024

Язык: Английский

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Strong Interface Coupling Enables Stability of Amorphous Meta‐Stable State in CoS/Ni₃S₂ for Efficient Oxygen Evolution

Small, Год журнала: 2024, Номер 20(26)

Опубликована: Фев. 5, 2024

Abstract Rational design of heterostructure catalysts through phase engineering strategy plays a critical role in heightening the electrocatalytic performance catalysts. Herein, novel amorphous/crystalline (a/c) (a‐CoS/Ni 3 S 2 ) is manufactured by facile hydrothermal sulfurization method. Strikingly, interface coupling between amorphous (a‐CoS) and crystalline (Ni a‐CoS/Ni much stronger than that (c‐CoS) crystalline/crystalline (c/c) (c‐CoS/Ni as control sample, which makes meta‐stable structure more stable. Meanwhile, has vacancies (S v c‐CoS/Ni because presence an phase. Eventually, for oxygen evolution reaction (OER), exhibits significantly lower overpotential 192 mV at 10 mA cm −2 compared to (242 mV). An exceptionally low cell voltage 1.51 V required achieve current density 50 overall water splitting assembled || Pt/C). Theoretical calculations reveal charges transfer from a‐CoS Ni , promotes enhancement OER activity. This work will bring into play fabrication a/c understanding catalytic mechanism heterostructures.

Язык: Английский

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Nickel molybdenum selenide on carbon cloth as an efficient bifunctional electrocatalyst for alkaline seawater splitting

Fuel, Год журнала: 2024, Номер 365, С. 131251 - 131251

Опубликована: Фев. 26, 2024

Язык: Английский

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Metal‐Organic Framework Materials as Bifunctional Electrocatalyst for Rechargeable Zn‐Air Batteries

Batteries & Supercaps, Год журнала: 2024, Номер 7(11)

Опубликована: Авг. 15, 2024

Abstract Rechargeable Zn‐air batteries offer the advantages of environmental friendliness, safety, low prices and high energy density, are highly valued. However, major challenge faced by rechargeable nowadays is efficiency due to slow reaction kinetics electrocatalyst at air cathode. Bifunctional catalysts key development improving their overall performance long‐term cycling stability. Metal‐organic framework (MOF) materials have shown great benefits as oxygen electrocatalysts in promoting reduction (ORR) evolution (OER). This paper reviews recent advances three kinds MOF bifunctional for batteries. Additionally, this also discusses synthetic design strategy composite derivatives, concludes suggesting application field

Язык: Английский

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Electronic Regulation by Fe-Doped CoP_x Hydrophilic Self-Supported Nanorod Arrays as Bifunctional Electrocatalysts for Superior Overall Seawater Splitting

ACS Sustainable Chemistry & Engineering, Год журнала: 2025, Номер unknown

Опубликована: Янв. 3, 2025

To address the challenge of designing a highly reactive and stable bifunctional electrocatalyst for both hydrogen evolution reaction (HER) oxygen (OER), hydrophilic Fe-CoPx nanorod array on nickel foam (NF) was designed prepared in this work. The modulation d-band center Co by adding Fe effectively optimized adsorption energy intermediates. synergistic effect bimetallic active sites significantly enhanced electrocatalytic performance reactions. In alkaline seawater, Fe-CoPx/NF exhibited excellent HER (−32 mV at −10 mA cm–2) OER (216 10 activities, maintaining stability over 100 h cm–2. For overall seawater electrolysis, catalyst achieved low cell voltage 1.54 V cm–2, outperforming conventional RuO2∥Pt/C electrode (1.58 cm–2). Additionally, simulated industrial flow cell, operated stably 200 indicating its strong potential practical applications. This study introduced simple synthesis method phosphides, providing new avenue design high-performance catalysts electrolysis.

Язык: Английский

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The dynamic anti-corrosion of self-derived space charge layer enabling long-term stable seawater oxidation

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 344, С. 123658 - 123658

Опубликована: Дек. 23, 2023

Язык: Английский

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Interfacial Electronic Redistribution via Anionic Modulator for Superb and Highly Stable Water/Seawater Oxidation

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(2), С. 1142 - 1150

Опубликована: Янв. 3, 2024

Rational construction of efficient and stable transition-metal (TM)-based electrocatalysts for oxygen evolution reaction (OER) is extraordinarily favored crucial to water/seawater splitting. Interface heteroatom engineering are powerful strategies improving the performance OER. Herein, we report a unique hydroxide/oxide heterostructure catalyst with P doping (Ni(OH)2/NiFe2O4–P) by an in situ growth strategy, following low-temperature phosphorylation boosting water oxidation. The Ni(OH)2/NiFe2O4–P electrode, featuring abundance nanosheets, provides greater number functional active boundaries enhances contact electrolyte accelerated charge transfer. incorporation anionic modulator induces electron redistribution at heterogeneous interfaces, thereby tailoring strong metal–anion interactions. Detailed electrochemical analysis further demonstrates that outstanding OER electrocatalyst, presenting low overpotentials 224, 253, 274 mV 100 mA cm–2 alkaline solution, simulated seawater, natural respectively. cell voltage assembled two-electrode electrolyzer (Pt/C ∥ Ni(OH)2/NiFe2O4–P) deliver 10 only 1.62 V can operate reliably 150 h electrolyte.

Язык: Английский

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Electrolysis of Seawater: An Effective Path to Sustainable Hydrogen Production with Sulfur-Doped NiFe LDH/MXene@NF Electrodes

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(31), С. 11520 - 11530

Опубликована: Июль 25, 2024

Electrolysis of seawater is currently a promising technology for efficient green hydrogen production and solving the energy crisis. Urea oxidation reaction (UOR) has low thermodynamic onset potential, which an effective to replace oxygen evolution (OER) in overall splitting avoid toxic hypochlorite generation. In this paper, we report sulfur-doped NiFe LDH with ultrathin nanoflower morphology on surface three-dimensional nickel foam (NF) loaded Ti3C2Tx MXene by two-step electrodeposition method (S-NiFe LDH/MXene@NF). The catalytic performance electrolytic boosted synergistic effect abundant interface between LDH, promotes electron transfer. S-NiFe LDH/MXene@NF exhibited electrocatalytic values 1.578 1.437 V (vs RHE) OER UOR at 500 mA cm–2, respectively, overpotential 336 mV (HER) cm–2 alkaline electrolyte. As bifunctional electrode, it can achieve current density 2.027 great stability. situ Raman detection recombination electrode demonstrates that accelerates formation active species NiOOH facilitates lattice disturbance NiOOH. This helps increase activity urea-assisted splitting.

Язык: Английский

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Interface Enables Faster Surface Reconstruction in a Heterostructured CuSe_y/NiSe_x Electrocatalyst for Realizing Urea Oxidation

Inorganic Chemistry, Год журнала: 2024, Номер 63(20), С. 9265 - 9274

Опубликована: Май 9, 2024

Creating affordable electrocatalysts and understanding the real-time catalytic process of urea oxidation reaction (UOR) are crucial for advancing urea-based technologies. Herein, a Cu-Ni based selenide electrocatalyst (CuSe

Язык: Английский

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