Fast and All-Optical Hydrogen Sensor Based on Gold-Coated Optical Fiber Functionalized with Metal-Organic Framework Layer

Elena Miliutina, Olga Guselnikova, Sofiia Chufistova, Zdenka Kolska, Roman Elashnikov, Vasilii Burtsev, Pavel Postnikov, Vaclav Svorcik, Oleksiy Lyutakov

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Remote detection of hydrogen, without the utilization of electronic component or elevated temperature, is one of the hot topics in the hydrogen technology and safety. In this work, the design and realization of the optical fiber-based hydrogen sensor with unique characteristics are proposed. The proposed sensor is based on the gold-coated multimode fiber, providing the plasmon properties, decorated by the IRMOF-20 layer with high selectivity and affinity toward hydrogen. The IRMOF-20 layer was grown by a surface-assisted technique, and its formation and properties were studied using X-ray photoelectron spectroscopy, Raman, X-ray diffraction, and Brunauer-Emmett-Teller techniques. Simultaneous ellipsometry results indicate the apparent changes of the refractive index of the IRMOF-20 layer due to hydrogen sorption. As results, the presence of hydrogen led to the pronounced changes of plasmon band wavelength position as well as its intensity increase. The proposed hydrogen sensors were favorably distinguished by a high response/recovery rate, excellent selectivity toward the hydrogen, very low temperature dependency, functionality at room or lower temperature, insensitivity toward the humidity, and the presence of CO2, CO, or NO2. Additionally, the proposed hydrogen sensor showed good reversibility, reproducibility, and long-term stability.

Original languageEnglish
Pages (from-to)3133-3140
Number of pages8
JournalACS Sensors
Volume4
Issue number12
DOIs
Publication statusPublished - 27 Dec 2019

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Keywords

  • hydrogen detection
  • metal-organic framework
  • optical fiber
  • plasmon
  • surface grafting

ASJC Scopus subject areas

  • Bioengineering
  • Instrumentation
  • Process Chemistry and Technology
  • Fluid Flow and Transfer Processes

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