Beilstein Arch. 2020, 2020145. https://doi.org/10.3762/bxiv.2020.145.v1
Published 21 Dec 2020
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
| Format: DOCX | Size: 29.9 KB | Download |
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
Citation data can be downloaded as file using the "Download" button or used for copy/paste from the text window below.
Citation data in RIS format can be imported by all major citation management software, including EndNote, ProCite, RefWorks, and
Zotero.
© 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)
