Rapid and highly sensitive detection of formaldehyde gas via a polyoxometalate–CuBi ₂O ₄ composite gas sensor

Polyoxometalates, Год журнала: 2024, Номер 3(2), С. 9140053 - 9140053

Опубликована: Янв. 4, 2024

Quick response and high sensitivity are equally important for the practical application of gas sensors. In this study, we introduced polyoxometalates (POMs) into a classical ternary metal oxide CuBi₂O₄ first time by convenient electrospinning prepared group heater-type sensors using CuBi₂O₄/PW₁₂ composite nanofibers. The sensor performances to formaldehyde were explored. results proved that gas-sensing (PW₁₂ = H₃PW₁₂O₄₀·xH₂O) 100 ppm was increased 6.68, which 3.92 times greater than sensing capacity pure sensor. Simultaneously, exhibited highly rapid response/recovery only 1/2 s, is significantly faster reported in past literature. cause improvement performance assessed via mechanism it found introduction PW₁₂ contributed its enhanced performance. It PW₁₂, as an electron acceptor, carrier mobility reduced electron–hole recombination, thus contributing properties. Moreover, other parameters such selectivity, humidity resistance, repeatability, long-term stability investigated. Hence, study literature on development polyoxometalates-based

Язык: Английский

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Effect of polyoxometalates electron acceptor decoration on NO2 sensing behavior of ZnS microspheres toward rapid and ultrahigh response

Sensors and Actuators B Chemical, Год журнала: 2024, Номер unknown, С. 137111 - 137111

Опубликована: Дек. 1, 2024

Язык: Английский

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Polyoxometalate electron acceptor heterogenous dopant into TiO2/g-C3N4 nanofibers for promoted acetone gas detectability

Sensors and Actuators B Chemical, Год журнала: 2024, Номер 417, С. 136072 - 136072

Опубликована: Июнь 4, 2024

Язык: Английский

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ZnO/MOx Nanofiber Heterostructures: MOx Receptor’s Role in Gas Detection

Sensors, Год журнала: 2025, Номер 25(2), С. 376 - 376

Опубликована: Янв. 10, 2025

ZnO/MOx (M = FeIII, CoII,III, NiII, SnIV, InIII, GaIII; [M]/([Zn] + [M]) 15 mol%) nanofiber heterostructures were obtained by co-electrospinning and characterized X-ray diffraction, scanning electron microscopy fluorescence spectroscopy. The sensor properties of ZnO nanofibers studied toward reducing gases CO (20 ppm), methanol acetone oxidizing gas NO2 (1 ppm) in dry air. It was demonstrated that the temperature maximum response is primarily influenced binding energy chemisorbed oxygen with surface modifier's oxides. When detecting NO2, high sensitivity at a low measurement can be achieved concentration free electrons near-surface layer zinc oxide grains, which determined band bending interface difference work function MOx.

Язык: Английский

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Reservoir computing and photoelectrochemical sensors: A marriage of convenience

Coordination Chemistry Reviews, Год журнала: 2023, Номер 487, С. 215155 - 215155

Опубликована: Апрель 11, 2023

Язык: Английский

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Polyoxometalate as pivotal interface in SnO2@PW12@TiO2 coaxial nanofibers: From heterojunction design to photocatalytic and gas sensing applications

Sensors and Actuators B Chemical, Год журнала: 2023, Номер 390, С. 133928 - 133928

Опубликована: Май 4, 2023

Язык: Английский

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Construction of CoFe bimetallic phosphide microflowers electrocatalyst for highly efficient overall water splitting

Catalysis Communications, Год журнала: 2023, Номер 175, С. 106607 - 106607

Опубликована: Янв. 13, 2023

In this study, CoFe bimetallic phosphide microflowers electrocatalyst are supported on nickel foam. The composition and phosphating can effectively improve the OER HER performances realize optimized overall water splitting performance. It requires only an overpotential of 68 mV in 1 M KOH to reach a current density 10 mA·cm−2 for 227 OER. When optimal sample (CoFe10%-P/NF) was used splitting, low cell voltage 1.610 V is required at alkaline solution. stability also good. This study provides feasible proposals splitting.

Язык: Английский

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Combination of covalent organic frameworks (COFs) and polyoxometalates (POMs): the preparation strategy and potential application of COF–POM hybrids

Materials Horizons, Год журнала: 2023, Номер 10(11), С. 4710 - 4723

Опубликована: Янв. 1, 2023

Both covalent organic frameworks (COFs) and polyoxometalates (POMs) show excellent properties application potential in many fields, thus receiving widespread attention. In recent years, COF-POM hybrid materials were prepared by combining COFs POMs through physical or chemical methods. hybrids have shown high performance such as catalysis, sensing, energy storage, biomedicine. this review, we introduced the preparation strategy of detail. We believe that combination will provide more abundant functions broad prospects.

Язык: Английский

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Designed synthesized step-scheme heterojunction of Bi2WO6 nanosheet supported on CuBi2O4 nanorod with remarkable photo-assisted gas sensing for N-butyl alcohol

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(3), С. 112698 - 112698

Опубликована: Апрель 4, 2024

Язык: Английский

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Organic-inorganic hybrid covalent superlattice for temperature-compensated ratiometric gas sensing

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Фев. 12, 2025

Язык: Английский

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