Crystal Structure‐ and Morphology‐Driven Electrochemistry of Iron Oxide Nanoparticles in Hydrogen Peroxide Detection
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F19%3A73597721" target="_blank" >RIV/61989592:15310/19:73597721 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/admi.201801549" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/admi.201801549</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/admi.201801549" target="_blank" >10.1002/admi.201801549</a>
Alternative languages
Result language
angličtina
Original language name
Crystal Structure‐ and Morphology‐Driven Electrochemistry of Iron Oxide Nanoparticles in Hydrogen Peroxide Detection
Original language description
Various iron oxide nanoparticles with different morphologies are synthesized and subsequently tested for their conductivity and electrocatalytic activity toward hydrogen peroxide. The morphology and chemical and phase composition of iron oxide nanoparticles are evaluated employing scanning electron microscopy, X-ray diffraction, Fe-57 Mossbauer spectroscopy, and Brunauer-Emmett-Teller specific surface area measurements. The electrochemical properties of the as-prepared sensors are estimated by electrochemical impedance spectroscopy. It is found that alpha-Fe2O3 nanoparticles with the sticks morphology exhibit the best conductivity response among all the tested phases and morphologies. Moreover, it is predicted that conductivity of different iron oxides can be connected with a number of vacancies in their crystal structure. Furthermore, the influence of surface area and porosity of the material on the conductivity can be omitted. Finally, the electrocatalytic activity of iron oxide nanoparticles toward hydrogen peroxide is confirmed by means of cyclic voltammetry. The obtained results perfectly reflect those derived from electrochemical impedance spectroscopy and indicate that glassy carbon electrodes modified with the sticks morphology of alpha-Fe2O3 hold a huge potential for hydrogen peroxide detection.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/LO1305" target="_blank" >LO1305: Development of the center of advanced technologies and materials</a><br>
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
Advanced Materials Interfaces
ISSN
2196-7350
e-ISSN
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Volume of the periodical
6
Issue of the periodical within the volume
3
Country of publishing house
DE - GERMANY
Number of pages
8
Pages from-to
"1801549-1"-"1801549-8"
UT code for WoS article
000458309700011
EID of the result in the Scopus database
2-s2.0-85058240379