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Beilstein J Nanotechnol. 2017 Feb 21;8:475-484. doi: 10.3762/bjnano.8.51. eCollection 2017.

Fiber optic sensors based on hybrid phenyl-silica xerogel films to detect .

Beilstein journal of nanotechnology

Jesús C Echeverría, Ignacio Calleja, Paula Moriones, Julián J Garrido

Affiliations

  1. Institute for Advanced Materials - Universidad Pública de Navarra, Campus Arrosadía, 31006 Pamplona, Spain; Department of Applied Chemistry - Universidad Pública de Navarra, Campus Arrosadía, 31006 Pamplona, Spain.
  2. Institute for Advanced Materials - Universidad Pública de Navarra, Campus Arrosadía, 31006 Pamplona, Spain.

PMID: 28326238 PMCID: PMC5331324 DOI: 10.3762/bjnano.8.51

Abstract

We investigated the response of three fiber optic sensing elements prepared at pH 10 from phenyltriethoxysilane (PhTEOS) and tetraethylsilane (TEOS) mixtures with 30, 40, and 50% PhTEOS in the silicon precursor mixture. The sensing elements are referred to as Ph30, Ph40 and Ph50, respectively. The films were synthesized by the sol-gel method and affixed to the end of optical fibers by the dip-coating technique. Fourier transform infrared spectroscopy, N

Keywords: fiber optic sensors; isosteric enthalpy of adsorption; n-hexane; phenyl-silica; xerogel films

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