Development of NH₃ Gas Sensors at Room Temperature Based on Modified Carbon Nanotubes

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  • Truong Duong V.
    School of Engineering Physics, Hanoi University of Science and Technology Hanoi University of Industry
  • Linh Bui T.
    School of Engineering Physics, Hanoi University of Science and Technology
  • Kien Nguyen M.
    School of Engineering Physics, Hanoi University of Science and Technology
  • Anh Luu T. L.
    School of Engineering Physics, Hanoi University of Science and Technology
  • Tu Nguyen C.
    School of Engineering Physics, Hanoi University of Science and Technology
  • Chien Nguyen D.
    School of Engineering Physics, Hanoi University of Science and Technology
  • Lam Nguyen H.
    School of Engineering Physics, Hanoi University of Science and Technology

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タイトル別名
  • Development of NH<sub>3</sub> Gas Sensors at Room Temperature Based on Modified Carbon Nanotubes

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<p>Multiwalled carbon nanotubes (CNTs) were modified with the Hummers method and coated onto Pt electrodes patterned on SiO2/Si(001) surface to fabricate chemical sensors. The modified CNTs showed a different structure and increased number of defects compared with pristine CNTs, these properties facilitated the adsorption of NH3 gas molecules on the CNT surfaces. NH3 gas sensing results indicate that the sensor exhibited an enhanced response to gas at room temperature. The response of the modified CNT-based sensor was 10 times higher than that of pristine CNT-based sensors.</p>

収録刊行物

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 61 (8), 1540-1543, 2020-08-01

    公益社団法人 日本金属学会

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