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

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(19), P. 6897 - 6942

Published: Jan. 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.

Language: 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, Journal Year: 2023, Volume and Issue: 344, P. 123658 - 123658

Published: Dec. 23, 2023

Language: Английский

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

Small, Journal Year: 2024, Volume and Issue: 20(26)

Published: Feb. 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.

Language: Английский

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

Fuel, Journal Year: 2024, Volume and Issue: 365, P. 131251 - 131251

Published: Feb. 26, 2024

Language: Английский

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ZIF-67 derivatives in electrocatalysis

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 523, P. 216296 - 216296

Published: Nov. 2, 2024

Language: Английский

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

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(2), P. 1142 - 1150

Published: Jan. 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.

Language: 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, Journal Year: 2024, Volume and Issue: 12(31), P. 11520 - 11530

Published: July 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.

Language: Английский

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

Batteries & Supercaps, Journal Year: 2024, Volume and Issue: 7(11)

Published: Aug. 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

Language: Английский

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

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(20), P. 9265 - 9274

Published: May 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

Language: Английский

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CeO₂ Nanoparticles Anchored in Cation-Vacancies NiFe-LDH toward Efficient Oxygen Evolution Reactions in Green Sustainable Seawater Electrolysis

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(31), P. 11628 - 11637

Published: July 21, 2024

In recent decades, there has been significant interest in eco-friendly hydrogen production from seawater electrolysis. However, the corrosive nature of Cl– on metal substrates prevents Ni–Fe layered hydroxides (NiFe-LDH) being catalysts for direct use this study, a NiFe-LDH attached to copper nanowire arrays with synergistic decoration cerium dioxide (CeO2) nanoparticles and cationic defects was synthesized. It requires only 208 230 mV overpotentials under 1 M KOH alkali wild 100 mA·cm–2. Moreover, catalyst is capable functioning at 400 mA·cm–2 natural seawater, retention rate 99% 80 h. Results theoretical experimental analyses indicate that Ce–O–Ni unit formed by cation anchoring CeO2 particles promotes charge transfer CeO2, which greatly reduces adsorption energy OER active intermediates. The hard soft acid-based (HSAB) theory states selective binding OH– high-valence Ni responsible improvement stability selectivity. This research aims outline key considerations developing high-efficiency electrolysis catalysts.

Language: Английский

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