Selenium nanoparticles modified niobium MXene for non-enzymatic detection of glucose

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 11, 2025

Abstract Glucose sensing remains a crucial need as diabetes is worldwide concern. This work reports the application of Nb 2 CT x —selenium nanoparticle composite material for nonenzymatic glucose. The surface morphology synthesized was analyzed using various microscopic techniques like scanning electron microscopy, transmission and its structural properties were diffraction spectroscopic methods. A gold disc electrode modified nanocomposite tested glucose in an alkaline medium. based on oxidation catalytic surface. quantified amperometrically at significantly lower overpotential 0.16 V. sensor showed good detection range from to 30 mM with sensitivity 4.15 µA −1 cm −2 limit 1.1 mM.

Language: Английский

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Hierarchical Selenium-Doped Nickel–Cobalt Hybrids on Carbon Paper for the Overall Water-Splitting Electrocatalytic System

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

Designing and constructing hierarchically structured materials with heterogeneous compositions is the key to developing an effective catalyst for overall water-splitting applications. Herein, we report fabrication of hollow-structured selenium-doped nickel–cobalt hybrids on carbon paper as a self-supported electrode (denoted Se–Ni|Co/CP, where Ni|Co consist alloy-incorporated oxide). The procedure involves direct growth zeolitic imidazolate framework-67 (ZIF-67) bimetal-based hydroxide (NiCoOH) electrodeposited CP, followed by selenous etching pyrolysis obtain final Se–Ni|Co/CP electrocatalytic system. optimized [Se–Ni1|Co9/CP(0.3)] exhibits remarkable performance in hydrogen evolution reaction (HER) oxygen (OER), displaying current density 10 mA cm–2 at small overpotentials 105 mV HER 235 OER. Furthermore, it allows alkali electrolyzer achieve cell voltage only 1.51 V. outstanding catalytic activity ascribed high intrinsic bimetallic catalyst, efficient interfaces, charge transport facilitated component, hollow structure inherited from metal–organic frameworks (MOF)-derived material providing ample porosity active sites, structural robustness achieved through construction.

Language: Английский

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Self-supported bimetallic iron-nickel sulfide nanosheets for efficient alkaline electrocatalytic oxygen evolution

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 81, P. 1209 - 1215

Published: July 28, 2024

Language: Английский

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Cobalt- and Nickel-Doped WSe₂ as Efficient Electrocatalysts for Water Splitting and as Cathodes in Hydrogen Evolution Reaction Proton Exchange Membrane Water Electrolysis

The Journal of Physical Chemistry C, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Language: Английский

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Interface-Driven Synergy in NiSe-NiP@NF: A Crystal-Amorphous Heterostructure for Superior Bifunctional Catalysis

Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: unknown, P. 106287 - 106287

Published: March 1, 2025

Language: Английский

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Enhancing catalytic efficiency: InSe quantum dots’ role in hydrogen evolution reaction

Journal of Electroanalytical Chemistry, Journal Year: 2024, Volume and Issue: unknown, P. 118806 - 118806

Published: Nov. 1, 2024

Language: Английский

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Facile Synthesis of Selenium Nanoparticles for Enhanced Oxygen Evolution Reaction: Insights into Electrochemical and Photoelectrochemical Catalysis

ACS Omega, Journal Year: 2024, Volume and Issue: 10(1), P. 520 - 528

Published: Dec. 26, 2024

Implementing a hydrogen economy on an industrial scale poses challenges, particularly in developing cost-effective and stable catalysts for water electrolysis. This study explores the catalytic potential of selenium nanoparticles (Se-NPs) synthesized via simple chemical bath deposition method electrochemical photoelectrochemical (PEC) splitting. The successful fabrication Se-NPs fluorine-doped tin oxide (FTO) electrodes has been confirmed using wide range analytical tools like X-ray diffraction, energy-dispersive spectroscopy, scanning electron microscopy. Importantly, measurements revealed superior electrocatalytic activity modified Se-NPs/FTO electrodes, with low overpotential (220 mV at 10 mA cm–2) Tafel slope (90.13 dec–1), indicating faster reaction kinetics reduced energy inputs oxygen evolution reaction. Furthermore, electrode was employed PEC splitting Na2S electrolyte, showing notable enhancement photocurrent density difference 700 μA cm–2 between light dark conditions 1.5 V vs RHE, demonstrating efficient light-driven production. overall findings this work establish that proposed are promising composites both performance, thereby providing insights into large-scale

Language: Английский

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Machine learning-aided understanding of the structure–activity relationship: a case study of MoS₂ supported metal–nonmetal pairs for the hydrogen evolution reaction

Nanoscale, Journal Year: 2024, Volume and Issue: 16(36), P. 16990 - 16997

Published: Jan. 1, 2024

Understanding the structure–performance relationship is crucial for designing highly active electrocatalysts, yet this remains a challenge.

Language: Английский

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Self-supported nanoflower-like CoNiSe2/NF as an efficient bifunctional electrocatalyst

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 177241 - 177241

Published: Oct. 1, 2024

Language: Английский

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Two-Dimensional Bi2Se3 Nanosheets Synthesis for Efficient Electrocatalytic Production of Ammonia from Nitrate

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(6), P. 114786 - 114786

Published: Nov. 13, 2024

Language: Английский

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