Electrocatalysis through interface and structural engineering of hollow/porous NiSe/CoSe2 nanotubes for overall water splitting

Journal of Alloys and Compounds, Год журнала: 2023, Номер 976, С. 173092 - 173092

Опубликована: Дек. 10, 2023

Язык: Английский

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Exfoliated 2D Nanosheet‐Based Conjugated Polymer Composites with P‐N Heterojunction Interfaces for Highly Efficient Electrocatalytic Hydrogen Evolution

Advanced Science, Год журнала: 2024, Номер unknown

Опубликована: Июль 31, 2024

We have achieved a significant breakthrough in the preparation and development of two-dimensional nanocomposites with P-N heterojunction interfaces as efficient cathode catalysts for electrochemical hydrogen evolution reaction (HER) iodide oxidation (IOR). P-type acid-doped polyaniline (PANI) N-type exfoliated molybdenum disulfide (MoS

Язык: Английский

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Surface coverage and reconstruction analyses bridge the correlation between structure and activity for electrocatalysis

Chemical Communications, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

Electrocatalysis is key to realizing a sustainable future for our society. However, the complex interface between electrocatalysts and electrolytes presents an ongoing challenge in electrocatalysis, hindering accurate identification of effective/authentic structure-activity relationships determination favourable reaction mechanisms. Surface coverage reconstruction analyses are important address each conjecture and/or conflicting viewpoint on surface-active phases their corresponding electrocatalytic origin,

Язык: Английский

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Amplifying bactericidal activity: Surfactant-mediated AgBr thin film coating over two-dimensional vertically aligned ZnO nanorods for dark-light dual mode disinfection

Journal of Photochemistry and Photobiology B Biology, Год журнала: 2023, Номер 250, С. 112815 - 112815

Опубликована: Ноя. 20, 2023

Язык: Английский

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High-entropy layered hydroxide for efficient and sustainable seawater oxidation

Materials Advances, Год журнала: 2024, Номер 5(12), С. 5156 - 5166

Опубликована: Янв. 1, 2024

High-entropy NiCrCoFeMo layered hydroxide has been identified as a potential electrocatalyst for sustainable seawater oxidation with high activity and great corrosion resistance ability.

Язык: Английский

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Enhancing electrocatalytic nitrogen fixation over core-shell P-Sb2S3/MoS2 heterojunction by vacancy and interface modulation

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 678, С. 1143 - 1152

Опубликована: Сен. 4, 2024

Язык: Английский

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Unveiling the Aluminum Doping Effects of In‐Situ Transmogrified Dual‐LDH Heterostructure and Its Fermi‐Level Alignment to Water Splitting Potentials

Advanced Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 4, 2024

Abstract The layered double hydroxide (LDH) captivates the starlight of electrochemical water‐splitting applications due to its stacked layers and larger surface area. A novel approach is reported integrate CoFe‐LDH/NiAl‐LDH heterostructure through a single‐step in situ transmogrification, harnessing benefits LDH. Raman spectroscopy reveals that aluminum (Al) doping promotes formation high‐valent Co III/IV ‐O active species concentration LDH, whereas without Al dopants, catalyst predominantly exhibit Ni II/III underperform catalytic activity. projected density states very close Fermi level positions Al‐doped samples which significantly enhance electron transfer processes. Mott–Schottky studies confirm both Al40 CoFe30 Al60 CoFe20 catalysts are p‐type semiconductors, exhibiting distinct redox behaviors under applied bias. At positive bias, undergoes downward band bending (accumulation), align Fermi‐level near water oxidation potential, oxygen evolution reaction (OER). negative bias causes upward (deep depletion) CoFe30, shifts reduction hence facilitates hydrogen (HER). Overall, this study highlights importance manipulating alignment LDH strategic metal achieve targeted reactions.

Язык: Английский

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Facile Aqueous Route to Large-Scale Superhydrophilic TiO₂-Incorporated Graphitic Carbon Nitride-Coated Ni(OH)₂ and Ni₂P Nano-Architecture Arrays as Efficient Electrocatalysts for Enhanced Hydrogen Production

Langmuir, Год журнала: 2025, Номер unknown

Опубликована: Янв. 9, 2025

Water splitting by an electrochemical method to generate hydrogen gas is economic and green approach resolve the looming energy environmental crisis. Designing a composite electrocatalyst having integrated multichannel charge separation, robust stability, low-cost facile scalability could be considered address issue of evolution. Herein, we report superhydrophilic, noble-metal-free bimetallic nanostructure TiO2/Ni2P coated on graphitic polyacrylonitrile carbon fibers (g-C/TiO2/Ni2P) using hydrothermal followed phosphorylation. In aqueous-based route, PAN dissolved in water presence ZnCl2, wet-spinning prepare scalable PAN/ZnCl2 fibers. The nitrogen-contained porous are prepared via pyrolysis fibers; now ZnCl2 acts as volatile porogen form matrix structures. Finally, as-prepared electrochemically activated incorporating active sites. materials formed this work show excellent electrocatalytic activity for evolution reaction. as-synthesized g-C/TiO2/Ni2P catalyst shows low overpotential, its improved, efficiency better than that commercial Pt/C catalyst. At current density −10 mA/cm2, overpotential 55 mV, while 77 mV. Our provides aqueous route with no need noble metals can potential alternative

Язык: Английский

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Self‐Powered Glucose Biosensor Based on Non‐Enzymatic Biofuel Cells by Au Nanocluster/Pd Nanocube Heterostructure and Fe₃C@C‐Fe Single‐Atom Catalyst

Small, Год журнала: 2025, Номер unknown

Опубликована: Фев. 21, 2025

Abstract Self‐powered biosensors (SPBs) based on biofuel cells (BFCs) use electrical output as a sensing signal without the need of external power supplies, providing feasible approach to constructing miniaturized implantable or portable devices. In this work, novel nanozyme gold nanoclusters/palladium nanocubes (AuNCs/PdNCs) heterostructure is successfully fabricated develop an innovatively self‐powered and non‐enzymatic glucose system. The AuNCs/PdNCs with oxidase (GOD)‐like activity exhibits superior electrocatalytic performance toward glucose. BFCs‐based SPBs system, established (anodic catalyst) single atomic Fe sites coupled carbon‐encapsulated 3 C crystals (Fe C@C‐Fe SACs cathodic platform, exceptional sensitivity 0.151 µW cm −2 m −1 (3.4 times higher than PdNCs), outstanding selectivity robust stability. system can be attributed synergistic cooperation between PdNCs AuNCs.

Язык: Английский

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Surface Modification of Ti₃CN MXene and Their Enhanced Performance in Photodetection

Small, Год журнала: 2025, Номер unknown

Опубликована: Март 26, 2025

As a typical hetero-MXene, Ti3CN MXene has attracted great attentions owing to its ultrafast carrier dynamic and unique nonlinear optical response. However, the photo-response of pristine is unsatisfied due fast recombination. Herein, multi-layer modified with well-dispersed Bi quantum dots, where Ti3CN@Bi heterojunction can not only tune absorption but also introduce energy transfer channels. The built-in electric field endows self-powered response behavior performance be further enhanced by tuning external conditions. demonstrated, Ti3CN@Bi-based photodetectors exhibit high photocurrent density (18.24 µA cm-2) excellent photoresponsivity (18.32 mA W-1). In addition, device shows outstanding stability (0.002% for each cycle), holding potentials practical applications. Hence, this work highlights broad prospects MXene-based heterojunction, provides value other optoelectronic

Язык: Английский

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