ew 19(22): e5

Research Article

Cys-modified zinc oxide 1D-nanostructures formation for gas sensors application

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  • @ARTICLE{10.4108/eai.13-7-2018.156389,
        author={A. A. Semenova and O. Yukhnovets and A.I. Maximov and S.S. Nalimova and V.A. Moshnikov and M.V. Zhukov},
        title={Cys-modified zinc oxide 1D-nanostructures formation for gas sensors application},
        journal={EAI Endorsed Transactions on Energy Web},
        volume={6},
        number={22},
        publisher={EAI},
        journal_a={EW},
        year={2019},
        month={1},
        keywords={Zinc oxide ZnO, surfactants, cysteine (Cys), adsorption sites, gas sensors},
        doi={10.4108/eai.13-7-2018.156389}
    }
    
  • A. A. Semenova
    O. Yukhnovets
    A.I. Maximov
    S.S. Nalimova
    V.A. Moshnikov
    M.V. Zhukov
    Year: 2019
    Cys-modified zinc oxide 1D-nanostructures formation for gas sensors application
    EW
    EAI
    DOI: 10.4108/eai.13-7-2018.156389
A. A. Semenova1,*, O. Yukhnovets1, A.I. Maximov1, S.S. Nalimova1, V.A. Moshnikov1, M.V. Zhukov2,3
  • 1: Saint Petersburg Electrotechnical University «LETI», Micro- and Nanoelectronics Department, Saint-Petersburg 197376, Russia
  • 2: Saint Petersburg National Research University of Information Technologies, Mechanics and Optics, Department of NanoPhotonics and Metamaterial, Saint-Petersburg 197101, Russia
  • 3: Institute for Analytical Instrumentations Russian Academy of Science, Laboratory of Scanning Probe Microscopy and Spectroscopy, Saint-Petersburg 190103, Russia
*Contact email: anastassiyan@mail.ru

Abstract

In this work, the ZnO-based materials were synthesized for gas sensors applications. The nanostructures formation was carried out by mild hydrothermal synthesis with the variations in surfactant concentration. The qualitative and quantitative analysis of the surface states in ZnO nanocrystals was performed. The effect of surfactant (cysteine) adsorption on ZnO 1D-nanostructures growth and the distribution of acid-bade adsorption sites on nanostructures surface were investigated. The control of the nanorods aspect ratio (about 0.4 at cystein concentration of 5 mM/l) leads to the changes in the Zn2+/O2- ions proportion, emerging on the surface. High cysteine concentrations resulted in the formation of Brönsted acid and Lewis base adsorption sites.