Interface Engineering Induced Homogeneous Isomeric Bimetallic of CoSe/NiSe₂ Electrocatalysts for High Performance Water/Seawater Splitting DOI Open Access

Huiya Zhou,

Ruiyu Li, Songlin Xu

и другие.

Advanced Sustainable Systems, Год журнала: 2024, Номер unknown

Опубликована: Дек. 30, 2024

Abstract As a subclass of metal–organic frameworks (MOFs), zeolitic imidazolate (ZIFs) possess highly ordered porous structure, extensive surface area, and accessible catalytically active sites, demonstrating significant potential in catalytic applications. Although the activity individual ZIFs is relatively low, their pore structure size distribution can be rationally designed optimized through appropriate chemical modifications post‐treatment strategies to enhance performance. This process requires meticulous control materials meet specific demands reactions. In this study, series CoSe/NiSe 2 nanosheets synthesized with precisely engineered morphology architecture using precursor route involving ZIFs. Notably, ‐3 exhibit remarkable overpotential 250.5 mV at 10 mA cm −2 alkaline seawater 215.3 1.0 m KOH electrolyte for oxygen evolution reaction (OER). Furthermore, when used as hydrogen (HER) catalyst, material also shows excellent electrocatalytic activity. When integrated forementioned electrocatalyst into full cell configuration, device operates low voltage 1.956 V current density 100 an medium, while maintaining stability over 12‐h operational period.

Язык: Английский

The anodic chlorine ion repelling mechanisms of Fe/Co/Ni-based nanocatalysts for seawater electrolytic hydrogen production DOI
Yuanyuan Wang, Xingmei Guo, Yafei Zhao

и другие.

Nano Energy, Год журнала: 2025, Номер 135, С. 110662 - 110662

Опубликована: Янв. 9, 2025

Язык: Английский

Процитировано

0
Comprehensive Chlorine Suppression: Advances in Materials and System Technologies for Direct Seawater Electrolysis DOI Creative Commons

Cenkai Zhao,

Zheyuan Ding,

Kunye Zhang

и другие.

Nano-Micro Letters, Год журнала: 2025, Номер 17(1)

Опубликована: Янв. 22, 2025

Abstract Seawater electrolysis offers a promising pathway to generate green hydrogen, which is crucial for the net-zero emission targets. Indirect seawater severely limited by high energy demands and system complexity, while direct bypasses pre-treatment, offering simpler more cost-effective solution. However, chlorine evolution reaction impurities in lead severe corrosion hinder electrolysis’s efficiency. Herein, we review recent advances rational design of chlorine-suppressive catalysts integrated systems architectures chloride-induced corrosion, with simultaneous enhancement Faradaic efficiency reduction cost. Furthermore, directions are proposed durable efficient systems. This provides perspectives toward sustainable conversion environmental protection.

Язык: Английский

Процитировано

0
Rational design of V doped CoP/Ni2P heterostructural catalysts for highly efficient ethanol electrolysis DOI

Yunlong Jing,

Borong Lu,

Yiyuan Jiang

и другие.

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 179593 - 179593

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Engineering TM–N2@C15N5S3H5-Based Covalent-Organic Frameworks for Enhanced Water-Splitting and Oxygen Reduction Reactions: A Constant Potential and Feature Coevaluation Approach DOI

Yajuan Feng,

Xihang Zhang,

Renxian Qin

и другие.

Langmuir, Год журнала: 2025, Номер unknown

Опубликована: Март 11, 2025

The development of highly active metal-based single-atom catalysts (SACs) is crucial for energy conversion and storage, offering optimized atom utilization high catalytic activity, with bifunctional SACs hydrogen evolution (HER) oxygen evolution/reduction (OER/ORR) reactions providing greater efficiency cost-effectiveness than monofunctional catalysts, making them scientifically economically valuable. By integrating density functional theory machine learning methods, we systematically evaluated the potential TM–N2@C15N5S3H5 monolayers as efficient HER/OER/ORR revealing that 27 TM atoms remain stable on N2@C15N5S3H5 a TM–N2 coordination environment. Rh–N2@C15N5S3H5 outperforms Pt in HER, while drives both HER OER, Ni–N2@C15N5S3H5 catalyzes OER ORR, catalysts. Comparative activity analysis reveals Ni-d orbitals interact O-p orbitals, pairing up electrons from antibonding states into downward bonding thus fitting OH* adsorption enhancing performance. We further examined pH applied effects OER/ORR performance monolayers, show enhanced acidic conditions, excelling ORR under alkaline conditions conditions. Moreover, techniques were to explore correlation between range structural atomic properties.

Язык: Английский

Процитировано

0
Flexible Electrocatalyst Engineering Based on 2D Ultrathin Nanosheets and Lamellar Fern‐Like Aerogel for Water Electrolysis DOI Open Access
Zhenfeng Zhu,

Jiaxuan Qiu,

Liansong Xie

и другие.

Advanced Sustainable Systems, Год журнала: 2025, Номер unknown

Опубликована: Март 12, 2025

Abstract Water electrolysis represents the primary method to produce green hydrogen. Nevertheless, during water electrolysis, particularly at high current densities, a large number of gas bubbles generated are difficult detach from electrode, triggering series negative effects such as active site covering, ionic conductance block, and catalyst deactivation, which in turn reduces efficiency. In recent years, flexible electrocatalysts have been developed address this issue well, with superior characteristics including mechanical deformability, optimization, mass transfer efficiency, structural stability. The advanced development electrocatalyst engineering for is urgently needed be systematically reviewed. Here, first, summarized deeply understand their impact on performance. Second, strategies design based 2D nanosheets fern‐like structure comprehensively introduced. Last but not least, outlooks research presented, will provide preliminary theoretical basis new ideas low‐cost, high‐performance, long‐life applied electrolysis.

Язык: Английский

Процитировано

0
Functional Interface Optimization Strategy for Fe3Se4/NiSe2 Anchored on MXene for Ultrastable Seawater Splitting at Industrial‐Level Current Density DOI Open Access
Felix Ofori Boakye,

Fakhr uz Zaman,

Haining Zhang

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 17, 2025

Abstract Developing efficient and long‐lasting electrocatalysts with industrial‐level current densities for seawater splitting is essential electrolysis technology to prevent the unwanted chlorine evolution reaction (CER). In this work, an effective technique of constructing functional interactive catalyst interfaces design bimetallic selenide anchored on 2D MXene (Fe 3 Se 4 /NiSe 2 @MXene) heterostructure fabricated nickel foam. Density‐functional theory (DFT) studies demonstrate that Fe @MXene interface modifies d‐band center electronic structure Ni sites. The coupling effect from heterointerface enhances redistribution charge density improves corrosion‐resistant selenide‐rich passivating layers high activity. demonstrates exceptional performance in 6 m alkaline natural media, achieving 300 360 mV at 500 1000 mA cm −2 industrial densities, respectively, remained durable 250 h 2000 ultra‐high density. Remarkably, electrode as a bifunctional achieves robust stability 140 h. This work inspires optimal catalysts applications.

Язык: Английский

Процитировано

0
Economical iron-based catalyst electrode for highly stable catalytic industrial-scale overall seawater splitting DOI Creative Commons
Weiju Hao, Guoqing Huang,

Xunwei Ma

и другие.

Carbon Neutrality, Год журнала: 2024, Номер 3(1)

Опубликована: Ноя. 25, 2024

Abstract The development of economical and stable catalyst electrodes for industrial-scale seawater splitting is one the current challenges in hydrogen production. transition metals possess high electrical conductivity offer potential designing with intrinsic activity through appropriate modifications, thus holding promising applications industrial contexts. Herein, a durable self-supported bifunctional electrode (Fe@Ni) efficiency large area successfully constructed by step in-situ deposition iron on porous structure nickel foam (NF) via mild (298 K) electroplating method. Transition like can be properly modified to achieve activity. Due growth cost-effective NF surface, surface morphology electronic are reconstructed, which significantly improves electrochemical electron transfer capability electrode. hydrogen/oxygen evolution reaction (HER/OER) simulated (1 M KOH + 0.5 NaCl) require only 129 mV 323 overpotentials density 100 mA cm −2 . Overall (OWS) achieves 10 at low voltage 1.49 V faradaic nearly 100%. More importantly, remain industrial-level (1.0 A ) more than 50 days. attractively, this work realizes universal construction large-area multiple (e.g., Fe, Cu, Al, etc simple process, provides new strategy research energy materials.

Язык: Английский

Процитировано

2
Interface Engineering Induced Homogeneous Isomeric Bimetallic of CoSe/NiSe₂ Electrocatalysts for High Performance Water/Seawater Splitting DOI Open Access

Huiya Zhou,

Ruiyu Li, Songlin Xu

и другие.

Advanced Sustainable Systems, Год журнала: 2024, Номер unknown

Опубликована: Дек. 30, 2024

Abstract As a subclass of metal–organic frameworks (MOFs), zeolitic imidazolate (ZIFs) possess highly ordered porous structure, extensive surface area, and accessible catalytically active sites, demonstrating significant potential in catalytic applications. Although the activity individual ZIFs is relatively low, their pore structure size distribution can be rationally designed optimized through appropriate chemical modifications post‐treatment strategies to enhance performance. This process requires meticulous control materials meet specific demands reactions. In this study, series CoSe/NiSe 2 nanosheets synthesized with precisely engineered morphology architecture using precursor route involving ZIFs. Notably, ‐3 exhibit remarkable overpotential 250.5 mV at 10 mA cm −2 alkaline seawater 215.3 1.0 m KOH electrolyte for oxygen evolution reaction (OER). Furthermore, when used as hydrogen (HER) catalyst, material also shows excellent electrocatalytic activity. When integrated forementioned electrocatalyst into full cell configuration, device operates low voltage 1.956 V current density 100 an medium, while maintaining stability over 12‐h operational period.

Язык: Английский

Процитировано

0