Tailoring electrocatalytic properties of Pt nanoparticles grown on Ti3C2Tx MXene surface
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F19%3A63523438" target="_blank" >RIV/70883521:28110/19:63523438 - isvavai.cz</a>
Result on the web
<a href="http://jes.ecsdl.org/content/166/2/H54.abstract" target="_blank" >http://jes.ecsdl.org/content/166/2/H54.abstract</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1149/2.0991902jes" target="_blank" >10.1149/2.0991902jes</a>
Alternative languages
Result language
angličtina
Original language name
Tailoring electrocatalytic properties of Pt nanoparticles grown on Ti3C2Tx MXene surface
Original language description
In this work, the spontaneous and NaBH4-induced reduction of chloroplatinic acid on the surface of Ti3C2TX MXene was investigated to synthesize a hybrid PtNP-decorated MXene nanomaterial (MX-Pt) with potential as hydrogen evolution (HER) or oxygen reduction reaction (ORR) catalyst properties. The initial Pt concentration, reduction time and presence of additional reducing agents were varied, and as-synthesized nanocomposites were characterized thoroughly by XRD, EDX, SEM and XPS analysis and by electrochemical methods. Composites containing 14 wt% Pt showed HER with an onset potential of -75.9 mV and a current density of -10 mA cm(-2) achieved at -226 mV. The spontaneous deposition of PtNPs on MXene improved the electrocatalytic properties over using an external reducing agent to form PtNP, which was explained based on the different rates of oxidation of Ti in the initial MXene support. Furthermore, good stability of the electrode modified by the MX-Pt was achieved without any polymeric binder and the HER reaction achieved only a negligible decrease over 3 000 potentiodynamic cycles.
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
21001 - Nano-materials (production and properties)
Result continuities
Project
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Continuities
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
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
Journal of the Electrochemical Society
ISSN
0013-4651
e-ISSN
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Volume of the periodical
166
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
"H54"-"H62"
UT code for WoS article
000457103300001
EID of the result in the Scopus database
2-s2.0-85066494719