From vanadium powder to vanadium pentoxide rolled-up nanosheets: Hydrothermal synthesis and its ethanol sensing properties

Hien, Vu Xuan; Nhat, Dang Duc; Nghi, Nguyen Thanh; Phuoc, Luong Huu; Khoa, Cao Tien; Vuong, Dang Duc; Chien, Nguyen Duc

doi:10.1016/j.mssp.2021.105670

Cited by 10 publications

(6 citation statements)

References 31 publications

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“…The observed binding energy values with a spin-orbit splitting of 7.4 eV are in good agreement with the V 5 + oxidation state. [37,48,49] The Raman spectra confirm the presence of few-layered graphene in VO Xdoped LIG (Figure 2d) by exhibiting three prominent peaks: the D (≈1338 cm -1 ), G (≈1524 cm -1 ), and 2D (≈2673 cm -1 ). [48] The enlarged Raman spectrum shows peaks at 142, 193, 281, 404, 695, and 991 cm -1 to confirm the formation of VO X .…”

Section: Device Structure and Characterizationmentioning

confidence: 61%

“…2d) by exhibiting three prominent peaks: the D (∼1338 cm − 1 ), G (∼1524 cm − 1 ), and 2D (∼2673 cm − 1 ). 33 The enlarged Raman spectrum in the inset shows peaks at 142, 193, 281, 404, 695, and 991 cm − 1 to con rm the formation of VO X . 34,35 The combination of LIG and VO X in VO X -doped LIG abnormally shifts the peaks compared with the previously reported VO X .…”

Section: Device Structure and Characterizationmentioning

confidence: 94%

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Vanadium Oxide‐Doped Laser‐Induced Graphene Multi‐Parameter Sensor to Decouple Soil Nitrogen Loss and Temperature

et al. 2023

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Monitoring nitrogen utilization e ciency and soil temperature in agricultural systems for timely intervention is essential to monitor crop health, promote sustainable and precision agriculture, and reduce environmental pollution. Therefore, it is of vital signi cance to develop a multi-parameter sensor for effectively and accurately decoupled detection of nitrogen loss and soil temperature, which is yet to be reported. Herein, this work presents a high-performance multi-parameter sensor based on vanadium oxide (VO X )-doped laser-induced graphene (LIG) foam to completely decouple nitrogen oxides (NO X ) and temperature. By exploiting the laser-assisted synthesis, the highly porous 3D VO X -doped LIG foam composite is readily obtained by laser scribing of vanadium sul de (V 5 S 8 )-doped block copolymer and phenolic resin self-assembled lms. Compared with the intrinsic LIG, the heterojunction formed at the LIG/VO X interface provides the sensor with a signi cantly enhanced response to NO X and an ultralow limit of detection (LOD) of 3 ppb at room temperature. Meanwhile, the sensor can accurately detect temperature over a wide linear range of 10-110℃ with a small detection limit of 0.2℃. The encapsulation of the sensor with a soft membrane further allows for temperature sensing without being affected by NO X , presenting an effective strategy to decouple nitrogen loss and soil temperature for accurate soil environmental monitoring. The sensor without encapsulation but operated at elevated temperature removes the in uences of ambient relative humidity and temperature variations for accurate NO X measurements. The capability to simultaneously detect ultra-low NO X concentrations and small temperature changes paves the way for the development of future multimodal electronic devices with decoupled sensing mechanisms for health monitoring and precision agriculture.

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Section: Device Structure and Characterizationmentioning

confidence: 61%

Section: Device Structure and Characterizationmentioning

confidence: 94%

Vanadium Oxide‐Doped Laser‐Induced Graphene Multi‐Parameter Sensor to Decouple Soil Nitrogen Loss and Temperature

et al. 2023

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“…E opt increases from 2.5 eV to 2.2 eV as a function of treatment temperature in the hydrothermal process. 191 On the other hand, the films fabricated by spray coating revealed an increase in E opt from 1.99 to 2.05 eV with increasing substrate temperature from 300 to 400 1C. 128 In another work, the color process transformed from greenish-yellow to yellow as a function of temperature and annealing time.…”

Section: Influence Of the Growth Parametersmentioning

confidence: 98%

Recent advances in vanadium pentoxide (V₂O₅) towards related applications in chromogenics and beyond: fundamentals, progress, and perspectives

Pham

Dong

et al. 2022

J. Mater. Chem. C

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“…45 Recently, our group has synthesized V 2 O 5 nanowalls by using vanadium powder. 46 These materials are synthesized below 100 °C. However, the processing time for these samples remains greater than 24 h. Thus, shortening the oxidation time and temperature to synthesize micro-and nanostructures directly from metallic vanadium remains a challenge.…”

Section: ■ Introductionmentioning

confidence: 99%

“…In 2013, Wang et al synthesized V 2 O 5 microparticles by dissolving vanadium powder in H 2 O 2 for 40 min at 50 °C and then annealing at 750 °C for 2 h . Recently, our group has synthesized V 2 O 5 nanowalls by using vanadium powder . These materials are synthesized below 100 °C.…”

Section: Introductionmentioning

confidence: 99%

From Microurchins to V₂O₅ Nanowalls: Improved Synthesis through Vanadium Powder and Fast, Selective Adsorption of Methylene Blue

et al. 2021

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Research on synthesizing micro- and nanosized materials directly from metals has attracted considerable attention because of its simplicity, ability to synthesize in large quantities, and high uniformity. This study proposes a simple method to synthesize high-uniformity or high-density V2O5 microurchins and nanowalls directly from vanadium powder. Remarkably, the synthesis condition of 60 °C for 1 h is considered to be an optimal condition to convert metals into micro- or nano-oxides. The as-synthesized V2O5 nanowalls can adsorb nearly 90% of methylene blue in the dark in 3 min. The adsorption selectivity of these samples with several pigments is investigated.

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From vanadium powder to vanadium pentoxide rolled-up nanosheets: Hydrothermal synthesis and its ethanol sensing properties

Cited by 10 publications

References 31 publications

Vanadium Oxide‐Doped Laser‐Induced Graphene Multi‐Parameter Sensor to Decouple Soil Nitrogen Loss and Temperature

Vanadium Oxide‐Doped Laser‐Induced Graphene Multi‐Parameter Sensor to Decouple Soil Nitrogen Loss and Temperature

Recent advances in vanadium pentoxide (V₂O₅) towards related applications in chromogenics and beyond: fundamentals, progress, and perspectives

From Microurchins to V₂O₅ Nanowalls: Improved Synthesis through Vanadium Powder and Fast, Selective Adsorption of Methylene Blue

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From vanadium powder to vanadium pentoxide rolled-up nanosheets: Hydrothermal synthesis and its ethanol sensing properties

Cited by 10 publications

References 31 publications

Vanadium Oxide‐Doped Laser‐Induced Graphene Multi‐Parameter Sensor to Decouple Soil Nitrogen Loss and Temperature

Vanadium Oxide‐Doped Laser‐Induced Graphene Multi‐Parameter Sensor to Decouple Soil Nitrogen Loss and Temperature

Recent advances in vanadium pentoxide (V2O5) towards related applications in chromogenics and beyond: fundamentals, progress, and perspectives

From Microurchins to V2O5 Nanowalls: Improved Synthesis through Vanadium Powder and Fast, Selective Adsorption of Methylene Blue

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Product

Resources

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Recent advances in vanadium pentoxide (V₂O₅) towards related applications in chromogenics and beyond: fundamentals, progress, and perspectives

From Microurchins to V₂O₅ Nanowalls: Improved Synthesis through Vanadium Powder and Fast, Selective Adsorption of Methylene Blue