Electrocatalytic properties of platinum nanocenters electrogenerated at ultra-trace levels within zeolitic phosphododecatungstate cesium salt matrices
Abstract: A unique preparation method of obtaining stable composite film (with ultra-low platinum content) highly active towards oxygen reduction and hydrogen oxidation is presented here. The matrix for platinum centers consists of high-surface-area zeolite-type acidic salt of cesium phosphododecatungstate (Cs2.5H0.5PW12O40) admixed with carbon (Vulcan XC-72) carriers. Platinum nanoparticles were deposited on the working electrode modified with matrix via corrosion of platinum counter electrode during cyclic voltammetry experiment conducted in acid electrolyte containing chloride ions. The results obtained from rotating disk voltammetry revealed that the composite film containing Pt nanoparticles at very low loadings (on the level of 2–5 μg cm−2) demonstrated remarkable electrocatalytic activity towards both oxygen reduction and hydrogen oxidation, particularly, when compared to the performance of the Cs2.5H0.5PW12O40-free system (i.e., containing only Vulcan support) prepared and examined under analogous conditions. The phenomenon should be primarily ascribed to the mesoporous nature of the matrix enabling immobilization and stabilization of small catalytic nanoparticles (1–2 nm diameters) inside the pores as well as to high surface acidity of the polyoxometalate-based salt providing proton-rich environment at the electrocatalytic interface
- Standort
-
Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
-
Online-Ressource
- Sprache
-
Englisch
- Anmerkungen
-
ISSN: 1433-0768
- Klassifikation
-
Chemie
- Ereignis
-
Veröffentlichung
- (wo)
-
Freiburg
- (wer)
-
Universität
- (wann)
-
2024
- Urheber
-
Kolary-Zurowska, Aneta
Zurowski, Artur
Dsoke, Sonia
Dembinska, Beata
Zoladek, Sylwia
Kiliszek, Malgorzata
Marassi, Roberto
Kulesza, Pawel J.
- DOI
-
10.1007/s10008-014-2537-5
- URN
-
urn:nbn:de:bsz:25-freidok-2438889
- Rechteinformation
-
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
-
25.03.2025, 13:52 MEZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Kolary-Zurowska, Aneta
- Zurowski, Artur
- Dsoke, Sonia
- Dembinska, Beata
- Zoladek, Sylwia
- Kiliszek, Malgorzata
- Marassi, Roberto
- Kulesza, Pawel J.
- Universität
Entstanden
- 2024
Ähnliche Objekte (12)
Preparation of Platinum-based Electrocatalytic Layers from Colloidal Dispersions with Adjusted Properties
Systematic increase of electrocatalytic turnover at nanoporous platinum surfaces prepared by atomic layer deposition
Electrocatalytic activity of platinum on extended gold surfaces and defined gold-nanostructure arrays for the hydrogen reactions
Method development for the ultra trace speciation analysis of Gadolinium
Multi-element ultra-trace detection of radionuclides in environmental samples
Bimetallic aerogels for electrocatalytic applications
Platinum Spirals
Platinum (Platin)
On the Iridium Compounds, analogous to the Aethylen and Protochlorid of Platinum Salts : Inaug. Diss.
Spurenelemente : Stoffwechsel, Ernährung, Imbalancen, Ultra-trace-Elemente ; Symposium in Konstanz 1984
Metallic hierarchical aerogels for electrocatalytic applications
Determination of trace and ultra-trace pollutants (organic and inorganic) in water and waste water after preconcentration with sorbent
Preparation of Platinum-based Electrocatalytic Layers from Colloidal Dispersions with Adjusted Properties
Systematic increase of electrocatalytic turnover at nanoporous platinum surfaces prepared by atomic layer deposition
Electrocatalytic activity of platinum on extended gold surfaces and defined gold-nanostructure arrays for the hydrogen reactions
Method development for the ultra trace speciation analysis of Gadolinium
Multi-element ultra-trace detection of radionuclides in environmental samples
Bimetallic aerogels for electrocatalytic applications
Platinum Spirals
Platinum (Platin)
On the Iridium Compounds, analogous to the Aethylen and Protochlorid of Platinum Salts : Inaug. Diss.
Spurenelemente : Stoffwechsel, Ernährung, Imbalancen, Ultra-trace-Elemente ; Symposium in Konstanz 1984
Metallic hierarchical aerogels for electrocatalytic applications
Determination of trace and ultra-trace pollutants (organic and inorganic) in water and waste water after preconcentration with sorbent
Preparation of Platinum-based Electrocatalytic Layers from Colloidal Dispersions with Adjusted Properties
Systematic increase of electrocatalytic turnover at nanoporous platinum surfaces prepared by atomic layer deposition
Electrocatalytic activity of platinum on extended gold surfaces and defined gold-nanostructure arrays for the hydrogen reactions
Method development for the ultra trace speciation analysis of Gadolinium
Multi-element ultra-trace detection of radionuclides in environmental samples
Bimetallic aerogels for electrocatalytic applications
Platinum Spirals
Platinum (Platin)
On the Iridium Compounds, analogous to the Aethylen and Protochlorid of Platinum Salts : Inaug. Diss.
Spurenelemente : Stoffwechsel, Ernährung, Imbalancen, Ultra-trace-Elemente ; Symposium in Konstanz 1984
Metallic hierarchical aerogels for electrocatalytic applications