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Raman and XPS studies of ammonia sensitive polypyrrole nanorods and nanoparticles

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F19%3APU132459" target="_blank" >RIV/00216305:26620/19:PU132459 - isvavai.cz</a>

  • Result on the web

    <a href="https://www.nature.com/articles/s41598-019-44900-1" target="_blank" >https://www.nature.com/articles/s41598-019-44900-1</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1038/s41598-019-449000-1" target="_blank" >10.1038/s41598-019-449000-1</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Raman and XPS studies of ammonia sensitive polypyrrole nanorods and nanoparticles

  • Original language description

    Raman and XPS studies of ammonia sensitive polypyrrole nanorods and nanoparticles, respectively and tested upon ammonia exposure using Raman and X-ray photonelectrone spectroscopy (XPS). Characterization of both nanomaterilas via Raman spectroscopy demostrates the formation of PPy, displaying vibration bands consistent with the literature. Additionally, XPS reveals the presence of neutral PPy species as major components in PPy NRs and PPy NPs, and other species including polarons and bipolarons. Raman and XPS analysis after ammonia exposure show changes in physical/chemical properties of PPy, confirimg the potential of both samples for ammonia sensing. Results demostrate that electrochemically synthesized NRs involve both proton and electron transfer mechansims during ammonia exposure, as oposit to the chemically synthesized NPs, which show the mechamism dominated by electron transfer. Thus, the different detection mechanisms in PPy NRs and PPy NPs appear to be connected to the particular morphological and chemical composition of each film. These results contribute to elucidate the mechanisms involved in ammonia detection and influence of the synthesis routes and physical/chemical characteristics of PPy.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    21001 - Nano-materials (production and properties)

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2019

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Scientific Reports

  • ISSN

    2045-2322

  • e-ISSN

  • Volume of the periodical

    9

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    10

  • Pages from-to

    1-10

  • UT code for WoS article

    000470962100029

  • EID of the result in the Scopus database

    2-s2.0-85067080881