Coupling Co-Ni phosphides for energy-saving alkaline seawater splitting

Nano Research, Journal Year: 2024, Volume and Issue: 17(6), P. 4797 - 4806

Published: Feb. 7, 2024

Language: Английский

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Tailoring the selective adsorption sites of NiMoO by Ni particles for biomass upgrading assisted hydrogen production

Journal of Energy Chemistry, Journal Year: 2023, Volume and Issue: 86, P. 480 - 489

Published: Aug. 19, 2023

Language: Английский

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Tunable NiSe‐Ni₃Se₂ Heterojunction for Energy‐Efficient Hydrogen Production by Coupling Urea Degradation

Small Methods, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

Abstract Urea‐assisted water splitting is a promising energy‐saving hydrogen (H 2 ) production technology. However, its practical application hindered by the lack of high‐performance bifunctional catalysts for urea oxidation reaction (UOR) and evolution (HER). Herein, heterostructured catalyst comprising highly active NiSe Ni 3 Se , along with conductive graphene‐coated nickel foam skeleton (NiSe‐Ni /GNF) reported. The NiSe‐Ni originates from in situ selenization foam, allowing careful regulation to ratio simply adjusting calcination temperature. Theoretical calculations charge transfer between components can optimize pathways reduce corresponding energy barriers. Accordingly, designed exhibits excellent UOR HER activity stability. Furthermore, /GNF‐based UOR‐HER electrolyzer requires only 1.54 V achieve current density 50 mA cm −2 which lower than many recent reports much 1.83 OER‐HER electrolyzers. Moreover, exhibited negligible cell voltage variation during 28‐h stability test, indicating satisfactory stability, provides new viable paradigm H production.

Language: Английский

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Recent advances in two-dimensional nanomaterials as bifunctional electrocatalysts for full water splitting

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(35), P. 18502 - 18529

Published: Jan. 1, 2023

Recent advances in two-dimensional bifunctional electrocatalysts for full water splitting are systematically reviewed, discussing challenges and opportunities further research.

Language: Английский

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Efficient and Stable pH‐Universal Water Electrolysis Catalyzed by N‐Doped Hollow Carbon Confined RuIrO_x Nanocrystals

Small, Journal Year: 2023, Volume and Issue: 20(16)

Published: Nov. 27, 2023

A facile strategy is developed to fabricate 3 nm RuIrO

Language: Английский

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Boosting High‐Performance Aqueous Zinc‐Ion Hybrid Capacitors via Organic Redox Species on Laser‐Induced Graphene Network

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(34)

Published: April 21, 2024

Abstract Hybrid zinc‐ion capacitors combine the energy storage capabilities of batteries with high‐power output supercapacitors. However, limited cycle life and narrow electrochemical window hybrid currently restrict their potential applications. Herein, a capacitor is fabricated on laser‐induced graphene (LIG) based in situ electropolymerization organic compound poly(8‐amino‐2‐naphthol). The electropolymerized long‐conjugated chain polymers 3D conductive framework LIG can enhance reaction kinetics, suppress dissolution compounds, boost capacity. Simultaneously, hydrogen bonds form between polymer chains, aiding proton transport. assembled Zn//carbon cloth/LIG/poly(8‐amino‐2‐naphthol) possess high specific capacity 308 mAh g −1 at 0.1 mA cm −2 , which twice as much that without LIG. Additionally, these stably endure 10 000 cycles current density 5 .

Language: Английский

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Acidic Oxygen Evolution Reaction: Fundamental Understanding and Electrocatalysts Design

ChemSusChem, Journal Year: 2024, Volume and Issue: 17(15)

Published: March 14, 2024

Water electrolysis driven by "green electricity" is an ideal technology to realize energy conversion and store renewable into hydrogen. With the development of proton exchange membrane (PEM), water in acidic media suitable for many situations with outstanding advantage high gas purity has attracted significant attention. Compared hydrogen evolution reaction (HER) electrolysis, oxygen (OER) a kinetic sluggish process that needs higher overpotential. Especially media, OER poses requirements electrocatalysts, such as efficiency, stability low costs. This review focuses on electrocatalysis, mechanisms, critical parameters used evaluate performance. modification strategies applied design construction new-type electrocatalysts are also summarized. The characteristics traditional noble metal-based metal-free developed recent decades compared discussed. Finally, current challenges most promising presented, together perspective future electrolysis.

Language: Английский

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Cycad-leaf-like crystalline-amorphous heterostructures for efficient urea oxidation-assisted water splitting

Chinese Journal of Structural Chemistry, Journal Year: 2024, Volume and Issue: 43(7), P. 100290 - 100290

Published: April 4, 2024

Language: Английский

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Step-by-step enhancing oxygen evolution ability of CoFe2O4 by hybrid structure engineering and fluorine doping

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 154211 - 154211

Published: July 22, 2024

Language: Английский

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Electroreforming injects a new life into solid waste

EES Catalysis, Journal Year: 2023, Volume and Issue: 1(6), P. 892 - 920

Published: Jan. 1, 2023

This review draws the similarities between electroreforming of biomass and plastic derivatives highlights pretreatment raw solid waste, innovation in catalyst design, mechanism investigation waste derivative conversion.

Language: Английский

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