Nickel nanoparticle decorated reduced graphene oxide-WO3 nanocomposite  - a promising candidate for gas sensing

  1. Ilka Simon,
  2. Alexandr Savitsky,
  3. Rolf Mülhaupt,
  4. Vladimir PankovORCID Logo and
  5. Christoph JaniakORCID Logo

Submitting author affiliation: Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany

Beilstein Arch. 2020, 2020145. https://doi.org/10.3762/bxiv.2020.145.v1

Published 21 Dec 2020

  • Preprint

Abstract

We report for the first time the doping of WO3 sensing elements with a non-noble metal carbon composite, namely a nickel metal nanoparticles-carbon composite (Ni@rGO). Previous work with WO3 had used either NiO (as part of the WO3 lattice) or carbon alone or Pd-surface decorated WO3 (Pd@WO3) or Pd or Pt@carbon@WO3. We demonstrate the gas response for pure WO3, rGO-doped WO3 and Ni@rGO doped WO3 sensing elements towards NO2 (10 ppm) and acetone (35,000 ppm) in air. The addition of 0.35 wt% Ni@rGO composite to WO3 enables the increase of the sensory response by more than 1.6 times for NO2 vapors as well as 4 times regarding acetone vapors (n-type response).

Keywords: gas sensing, magnetic measurements, nickel nanoparticles, reduced graphene oxide, tungsten oxide

Supporting Information

Format: DOCX Size: 29.9 KB   Download

How to Cite

When a peer-reviewed version of this preprint is available, this information will be updated in the information box above. If no peer-reviewed version is available, please cite this preprint using the following information:

Simon, I.; Savitsky, A.; Mülhaupt, R.; Pankov, V.; Janiak, C. Beilstein Arch. 2020, 2020145. doi:10.3762/bxiv.2020.145.v1

Download Citation
Download RIS (Reference Manager) Download BIB (BIBTEX)

© 2020 Simon et al.; licensee Beilstein-Institut.
This is an open access work under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0). Please note that the reuse, redistribution and reproduction in particular requires that the author(s) and source are credited and that individual graphics may be subject to special legal provisions.
The license is subject to the Beilstein Archives terms and conditions: (https://www.beilstein-archives.org/xiv/terms)

Other Beilstein-Institut Open Science Activities

Logo
Logo
Logo
Symposia