Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(18), С. 10704 - 10712
Опубликована: Янв. 1, 2024
An amorphous–crystalline CoFeB/NiPS 3 heterostructure was successfully fabricated to realize highly active water electrolysis. The achieves an excellent ampere-level current density of over 1 A cm −2 .
Язык: Английский
Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 355, С. 124197 - 124197
Опубликована: Май 12, 2024
Язык: Английский
Процитировано
18
Energy Advances, Год журнала: 2024, Номер 3(6), С. 1144 - 1166
Опубликована: Янв. 1, 2024
It is imperative to transition towards sustainable energy sources mitigate the escalating threat of global warming and ameliorate adverse impacts climatic changes.
Язык: Английский
Процитировано
16
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Авг. 15, 2024
Abstract Metal oxides with spinel structure have garnered increasing attention as promising alternatives to noble metal‐based electrocatalysts. However, these electrocatalysts often fail simultaneously exhibit high activity and stability for both hydrogen evolution reaction (HER) oxygen (OER), limiting their applications in electrocatalytic water splitting. Herein, crystalline/amorphous heterogeneous interfaces are successfully introduced into NiCo 2 O 4 nanosheets, which grown situ on carbon cloth (CC), denoted ‐B‐CC. The amorphous/crystalline heterostructures combine the advantages of phases amorphous phase nanosheets modulates electron density, provides abundant single vacancies active sites, enhances corrosion resistance, while crystalline improves conductivity. Density functional theory (DFT) calculations performed investigate influence surface vacancy (SV ) OER HER processes. NiCo₂O₄‐B‐CC exhibits overpotentials only 26 mV 215 at a current density 10 mA cm −2 . It excellent performance splitting, achieving 400 an applied voltage 2.0 V. construction novel approach enhancing metal
Язык: Английский
Процитировано
16
Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160442 - 160442
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
10
ACS Catalysis, Год журнала: 2025, Номер unknown, С. 1073 - 1096
Опубликована: Янв. 2, 2025
The energy crisis is a daunting global problem that calls for innovative and supportable solutions to ensure future security environmental stability. To counter this uncertainty, accelerating renewable-driven hydrogen production stands as vital option foster carbon-neutral infrastructure. This review conveys an overview of worldwide generation techniques (steam methane reformation, thermochemical, biological, electrolytic), highlighting the key features, indicating pros cons, unraveling potential consequences. Herein, conventional gray cutting-edge green technologies are compared, with focus on sustainable water electrolysis utilizing renewable sources. existing difficulties electrolysis, including usage expensive catalysts in both cathode anode, discussed along possible gateway cost-effective electrocatalysts. focuses three types 3d transition metal-based molecular catalysts─cobaloximes, iron porphyrins, nickel bis-phosphines─for evolution reactions (HER), stressing their strategic synthetic designs, mechanistic routes, catalytic parameters. Despite high activity selectivity, these systems confront stability scalability issues, limiting practical applicability. address this, immobilization into solid matrices studied, simplifying integration membrane electrode assembly (MEA) electrolyzers industrial-scale production. bridge gap between lab-scale investigations commercial implementation, several design components MEA stack examined, such flow patterns scaling methodologies. A comprehensive approach catalyst development deployment ensured by significance Life Cycle Assessment (LCA) Techno-Economic Analysis (TEA) assessing sustainability economic viability. closes call multidisciplinary research innovation improve electrochemical water-splitting technology accelerate enduring economy.
Язык: Английский
Процитировано
3
ACS Materials Letters, Год журнала: 2023, Номер 6(2), С. 466 - 481
Опубликована: Дек. 30, 2023
Hydrogen is praised as a promising carrier of clean energy due to its high calorific combustion value and environmental friendliness. The idea water electrolysis powered by renewable electricity produce high-quality hydrogen has ignited fervor among researchers in pursuit sustainable development. However, the sluggish kinetics traditional anodic oxygen evolution reaction (OER) hinders efficient conversion. Given this, propose new ideas improve conversion efficiency developing alternative types catalysts. This review focuses on nickel-based electrocatalysts, highlighting their recent advancements conventional OER well emerging small molecule electrooxidation reactions. We provide insights into catalyst design synthesis, performance optimization, mechanism exploration, structure–activity relationships. Additionally, we discuss current challenges potential solutions Ni-based anode electrocatalysts for production.
Язык: Английский
Процитировано
24
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(38)
Опубликована: Июнь 21, 2024
Electrochemical reduction reactions, as cathodic processes in many energy-related devices, significantly impact the overall efficiency determined mainly by performance of electrocatalysts. Metal-organic frameworks (MOFs) derived carbon-supported metal materials have become one star electrocatalysts due to their tunable structure and composition through ligand design screening. However, for different electroreduction required active species vary phase component, electronic state, catalytic center configuration, hence requiring effective customization. From this perspective, review comprehensively analyzes structural principles, loading strategies, practical performance, complex mechanisms, thereby providing insights guidance future rational such catalysts.
Язык: Английский
Процитировано
15
Advanced Functional Materials, Год журнала: 2024, Номер 34(38)
Опубликована: Апрель 9, 2024
Abstract Transition‐metal nanoparticles hold great promise as electrocatalysts for alkaline hydrogen evolution reaction (HER), however, addressing the simultaneous challenges of ensuring sufficient active sites, promoting favorable water dissociation, and optimizing binding energy toward intermediates remains a formidable task. To overcome these hurdles, novel gaseous engineering strategy is proposed by in situ embedding cobalt within samarium hydride matrix (Co/SmH 2 ) via hydrogen‐induced disproportionation SmCo 5 particles efficient HER. The as‐designed Co/SmH delivered an overpotential low 252 mV at 100 mA cm −2 , surpassing performance pristine Co mV. Notably, this catalyst lasts remarkably long maintaining durability ≈500 120 h. A combination Raman spectroscopy, X‐ray absorption density functional theory calculation post‐HER characterizations unambiguously unveiled that surface SmH transforms into (hydr)oxide during electrocatalysis. This transformation not only inhibits aggregation ultrafine but also significantly enhances dissociation optimizes species intermediate, resulting concurrent improvement kinetics, thermodynamics, stability HER process.
Язык: Английский
Процитировано
13
Materials Today Chemistry, Год журнала: 2024, Номер 37, С. 102035 - 102035
Опубликована: Март 29, 2024
Язык: Английский
Процитировано
12
Electron, Год журнала: 2024, Номер 2(1)
Опубликована: Фев. 1, 2024
Abstract Electrochemical hydrogen evolution reaction (HER) and overall water splitting (OWS) for renewable energy generation have recently become a highly promising sustainable strategy to tackle crisis global warming arising from our overreliance on fossil fuels. Previously, tremendous research breakthroughs been made in 2D carbon‐based heterostructured electrocatalysts this field. Such heterostructures are distinguished by their remarkable electrical conductivity, exposed active sites, mechanical stability. Herein, with fundamental mechanisms of electrocatalytic OWS summarized, review critically emphasized state‐of‐the‐art carbon nanosheet‐, graphene‐, graphdiyne‐based HER since 2018. Particularly, the three emerging carbonaceous substrates tend be incorporated metal carbides, phosphides, dichalcogenides, nitrides, oxides, nanoparticles, single atom catalysts, or layered double hydroxides. Meanwhile, fascinating structural engineering facile synthesis strategies were also unraveled establish structure–activity relationship, which will enlighten future electrocatalyst developments toward ameliorated activities. Additionally, computational results density functional theory simulations highlighted as well better comprehend synergistic effects within heterostructures. Finally, current stages recommendations brand‐new type concluded discussed advanced catalyst designs practical applications.
Язык: Английский
Процитировано
10