N-pentanol sensor based on ZnO nanorods functionalized with Au catalysts

Hongtao Wang, Yueyue Li, Chenchang Wang, Yuan Li, Jihao Bai, Yueying liu, Linsheng Zhou, Fengmin Liu, Kengo Shimanoe, Geyu Lu

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

As one of the most promising “next generation” alcohol fuels, n-pentanol brings convenience to our lives as well as challenges. Realizing real-time monitoring of n-pentanol is important to the health of workers in chemical plants. In this work, a series of Au nanoparticles functionalized ZnO nanorods were prepared by a facile one-step solvothermal method. The electronic sensitization and chemical sensitization of Au nanoparticles regulate the thickness of initial depletion layer of ZnO nanorods and increase the amount of adsorbed oxygen species on the surface. The gas-sensing results showed that 2 mol% Au nanoparticles functionalized ZnO nanorods exhibited the highest response of 71.8 to 4 ppm n-pentanol at 260 °C, and showed much higher response than other various saturated monohydric alcohols with different carbon chain lengths. Moreover, the sensor possessed ultra-fast response speed (1 s), excellent stability, and a certain ability of moisture resistance. The sensor was heated at 350 °C to promote the desorption of n-pentanol. The surface depletion layer model and energy band theory were used to explain the enhanced gas-sensing performance. This work provides a suitable candidate for real-time monitoring of n-pentanol in chemical plants.

本文言語英語
論文番号129888
ジャーナルSensors and Actuators, B: Chemical
339
DOI
出版ステータス出版済み - 7 15 2021

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 器械工学
  • 凝縮系物理学
  • 表面、皮膜および薄膜
  • 金属および合金
  • 電子工学および電気工学
  • 材料化学

フィンガープリント

「N-pentanol sensor based on ZnO nanorods functionalized with Au catalysts」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル