High-performance room-temperature borophene homojunction gas sensor

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159679 - 159679

Published: Jan. 1, 2025

Language: Английский

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Solvothermal synthesis of Zr-metal-organic framework/V2C MXene based composite on nickel foam for highly selective detection of epinephrine in simulated blood serum

Microchemical Journal, Journal Year: 2024, Volume and Issue: 207, P. 112120 - 112120

Published: Nov. 6, 2024

Language: Английский

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Ru-Doped CeO₂ Nanoparticles as Sensing Materials for the Detection of Formaldehyde

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

Published: Feb. 25, 2025

Language: Английский

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2D MXenes‐Based Gas Sensors: Progress, Applications, and Challenges

Small Methods, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Gas detection has become a popular research topic in the field of environmental protection and disease because concerning increase pollution human health problems. 2D MXenes are promising candidates for room-temperature gas sensors their flexible adjustable material compositions, high conductivities, signal-to-noise ratios, surface terminations. This paper presents prospects sensors, structure MXenes, potential sensing mechanisms MXenes-based sensors. Applications Ti3C2Tx, V2CTx, Nb2CTx, Mo2CTx different gases reviewed, challenges directions applying discussed. review provides ideas designing novel sensitive materials by analyzing value sensor field.

Language: Английский

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High performance triethylamine sensor based on Ru nanoparticles decorated 2D-Ti3C2Tx MXene nanosheets

Materials Letters, Journal Year: 2025, Volume and Issue: unknown, P. 138379 - 138379

Published: March 1, 2025

Language: Английский

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Boosting Ion Transport Kinetics in Sulfolane‐Modified Aqueous Electrolytes for High‐Performance Zinc‐Ion Batteries with V₂C MXene Cathodes

Small Methods, Journal Year: 2025, Volume and Issue: unknown

Published: March 16, 2025

Abstract The advancement of zinc‐ion batteries (ZIBs) is propelled by their inherent safety, cost‐effectiveness, and environmental sustainability. This study investigates the role sulfolane (SL), a polar aprotic solvent with high dielectric constant, as an electrolyte additive to enhance ion transport electrochemical performance in V₂C MXene cathodes for high‐performance ZIBs. addition 1% SL optimizes Zn‐ion increasing ionic conductivity, suppressing decomposition, mitigating zinc dendrite formation. Galvanostatic Intermittent Titration Technique (GITT) analysis reveals reduction Zn 2 ⁺ diffusion coefficient from 1.54 × 10⁻⁷ cm /s m ZnSO₄ 1.07 10⁻⁹ s −1 SL‐modified system, indicating more confined environment. Electrochemical Impedance Spectroscopy (EIS) further demonstrates substantial decrease activation energy 123.78 65.08 kJ mol⁻¹, signifying improved charge transfer kinetics. Ex situ XRD confirms that stabilizes phase transformation Zn₀.₂₉V₂O₅, enhancing structural integrity. modified system achieves impressive specific capacity 545 mAh g⁻¹ at 0.5 A exhibits exceptional cycling stability, retaining 91% over 7000 cycles 20 g⁻¹. These findings underscore potential key advancing MXene‐based

Language: Английский

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An efficient charge-carrier separation in vanadium-based MXene ternary heterostructure with enhanced photoelectrocatalytic properties

FlatChem, Journal Year: 2025, Volume and Issue: unknown, P. 100865 - 100865

Published: April 1, 2025

Language: Английский

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Construction of 2D TiO2@MoS2 Heterojunction Nanosheets for Efficient Toluene Gas Detection

Chemosensors, Journal Year: 2025, Volume and Issue: 13(5), P. 154 - 154

Published: April 22, 2025

Monitoring trace toluene exposure is critical for early-stage lung cancer screening via breath analysis, yet conventional chemiresistive sensors face fundamental limitations, including compromised selectivity in complex VOC matrices and humidity-induced signal drift, with prevailing p–n heterojunction architectures suffering from inherent charge recombination environmental instability. Herein, we pioneer a 2D core–shell n–n strategy through rational design of TiO2@MoS2 heterostructures, where vertically aligned MoS2 nanosheets are epitaxially grown on TiO2 derived graphene-templated synthesis, creating built-in electric fields at the interface that dramatically enhance carrier separation efficiency. At 240 °C, sensor exhibits superior response (Ra/Rg = 9.8 to 10 ppm toluene), outperforming 2.8). Additionally, demonstrates rapid response/recovery kinetics (9 s/16 s), low detection limit (50 ppb), excellent against interfering gases moisture. The enhanced performance attributed unidirectional electron transfer (TiO2 → MoS2) without hole losses, methyl-specific adsorption oxygen vacancy alignment, steric exclusion non-target VOCs size-selective interlayers. This work establishes transformative paradigm gas by leveraging physics synergy, overcoming long-standing limitations architectures.

Language: Английский

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Rational Design of Triboelectric Materials and Devices for Self‐Powered Food Sensing

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 23, 2024

Against the backdrop of rapid advancements in 5G and Internet Things (IoT) technologies, there is an urgent need to upgrade food sensing systems achieve automation, digitalization, intelligence. However, this transformation process faces numerous challenges. Triboelectric nanogenerators (TENGs), as emerging energy conversion technology, play a crucial role context. They not only provide power functional devices but also serve sensors multifunctional self-powered systems, capable detecting various physical chemical information. This review explores development TENGs field sensing, focusing on working principles their sensing. The systematically organizes classifies material device designs used for applications. Based performance TENGs, detailed introduction provided specific applications sterilization, quality monitoring, taste safety. Finally, paper discusses challenges corresponding strategies field. aim further promote unmanned smart services management sector new research perspectives.

Language: Английский

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A Comparative Review of Graphene and MXene-Based Composites towards Gas Sensing

Molecules, Journal Year: 2024, Volume and Issue: 29(19), P. 4558 - 4558

Published: Sept. 25, 2024

Graphene and MXenes have emerged as promising materials for gas sensing applications due to their unique properties superior performance. This review focuses on the fabrication techniques, applications, mechanisms of graphene MXene-based composites in sensing. Gas sensors are crucial various fields, including healthcare, environmental monitoring, industrial safety, detecting monitoring gases such hydrogen sulfide (H2S), nitrogen dioxide (NO2), ammonia (NH3). Conventional metal oxides like tin oxide (SnO2) zinc (ZnO) been widely used, but offer enhanced sensitivity, selectivity, response times. Graphene-based can detect low concentrations H2S NH3, while functionalization improve gas-specific selectivity. MXenes, a new class two-dimensional materials, exhibit high electrical conductivity tunable surface chemistry, making them suitable selective sensitive detection gases, VOCs humidity. Other metal-organic frameworks (MOFs) conducting polymers, also shown potential which may be doped into MXene layers sensitivity sensors.

Language: Английский

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