Advanced Materials

Chemically Engineered Single-Walled Carbon Nanotube Materials for the Electronic Detection of Hydrogen Chloride

Authors

  • Elena Bekyarova,

    1. Center for Nanoscale Science and Engineering Departments of Chemistry and Chemical & Environmental Engineering, University of California – Riverside Riverside, California 92521 (USA)
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  • Irina Kalinina,

    1. Center for Nanoscale Science and Engineering Departments of Chemistry and Chemical & Environmental Engineering, University of California – Riverside Riverside, California 92521 (USA)
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  • Xiaobo Sun,

    1. Center for Nanoscale Science and Engineering Departments of Chemistry and Chemical & Environmental Engineering, University of California – Riverside Riverside, California 92521 (USA)
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  • Tejas Shastry,

    1. Center for Nanoscale Science and Engineering Departments of Chemistry and Chemical & Environmental Engineering, University of California – Riverside Riverside, California 92521 (USA)
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  • Kimberly Worsley,

    1. Center for Nanoscale Science and Engineering Departments of Chemistry and Chemical & Environmental Engineering, University of California – Riverside Riverside, California 92521 (USA)
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  • Xiaoliu Chi,

    1. Center for Nanoscale Science and Engineering Departments of Chemistry and Chemical & Environmental Engineering, University of California – Riverside Riverside, California 92521 (USA)
    2. Current address: Texas A&M University-Kingsville, Department of Chemistry, Kingsville, TX 78363 (USA)
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  • Mikhail E. Itkis,

    1. Center for Nanoscale Science and Engineering Departments of Chemistry and Chemical & Environmental Engineering, University of California – Riverside Riverside, California 92521 (USA)
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  • Robert C. Haddon

    Corresponding author
    1. Center for Nanoscale Science and Engineering Departments of Chemistry and Chemical & Environmental Engineering, University of California – Riverside Riverside, California 92521 (USA)
    • Center for Nanoscale Science and Engineering Departments of Chemistry and Chemical & Environmental Engineering, University of California – Riverside Riverside, California 92521 (USA).
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Abstract

Films of pyridinol-functionalized single-walled carbon nanotubes (SWNTs) exhibit strong electrical response to HCl and in situ optical and electrical measurements reveal that the acid–base equilibrium couples to the oxidation of the SWNTs, inducing electron transfer from the semiconducting SWNTs upon protonation of the pyridine group.

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