Select the dataverse to which you want to add the new dataset:
You need to Sign In/Sign Up to add a dataset.
Share this dataset on your favorite social media networks.
Miecznikowski, Krzysztof, 2024, "Pyrolyzed cobalt hexacyanocobaltate dispersed on reduced-graphene-oxide as an electrocatalyst of the oxygen reduction reaction in an alkaline medium", https://doi.org/10.58132/XKN1DU, Dane Badawcze UW, V1
Learn about Data Citation Standards.
Described is the development of a unique electrocatalytic material prepared by heat-treating a composite of a Prussian Blue analogue, cobalt hexacyanocobaltate, and immobilizing it on reduced graphene oxide (rGO). The pyrolysis process, heating at 500 OC, forms a material with catalytic cobalt centers that are active toward the electrochemical oxygen reduction reaction in alkaline media. Physicochemical properties of this material containing cobalt in different oxidation states have been elucidated using transmission electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, and various electrochemical diagnostic techniques. Experimental results have shown that this material displayed comparable electrocatalytic activity (e.g., onset potential) toward the oxygen reduction reaction in alkaline media to that of Vulcan-supported platinum nanoparticles. Formation of undesirable peroxide species, as demonstrated by monitoring ring currents during rotating ring-disk electrode measurements, was somewhat higher at the pyrolyzed cobalt hexacyanocobaltate on rGO than with platinum nanoparticles on a carbon black support; however, even in the worst case, these values were below 15%, which demonstrates a high activity of cyanide-bridged cobalt sites. This thermally prepared electrocatalytic material exhibits high stability and tolerance to alcohols such as methanol.
oxygen reduction reaction, pyrolysis, cobalt hexacyanocobaltate, modified electrode, electrocatalysis
Zakrzewska B, Jabłońska A, Adamczyk L, Dembińska B, Kostuch A, Strawski M, Rutkowska IA, Kulesza PJ, Marcinek M, Cox JA, Miecznikowski K, Pyrolyzed Cobalt Hexacyanocobaltate Dispersed on Reduced-Graphene-Oxide as an Electrocatalyst of the Oxygen Reduction Reaction in an Alkaline Medium. J. Mater. Chem. A 2023, 11, 7286–7298. DOI https://doi.org/10.1039/D2TA08682D https://doi.org/10.1039/D2TA08682D doi: 10.1039/D2TA08682D
CC BY - Creative Commons Attribution 4.0
Select all 26 files in this dataset.
Please select a file or files to be deleted.
The file(s) will be deleted after you click on the Delete button.
Files will not be removed from previously published versions of the dataset.
Please select a file or files to be edited.
For selected file(s) set a license to
Please select a file or files to be downloaded.
Please select a file or files for access request.
Please select restricted file(s) to be unrestricted.
You need to Log In/Sign Up to request access to this file.
Please confirm and/or complete the information needed below in order to continue.
Asterisks indicate required fields
Access to file(s) subject to additional consent under following conditions:
The restricted file(s) selected may not be downloaded because you have not been granted access.
Click Continue to download the files you have access to download.
Are you sure you want to delete this dataset and all of its files? You cannot undelete this dataset.
Are you sure you want to lift the embargo?
Once you lift the embargo, you will not be able to set it again.
Are you sure you want to delete this draft version? Files will be reverted to the most recently published version. You cannot undelete this draft.
Use a Private URL to allow those without Dataverse accounts to access your dataset. For more information about the Private URL feature, please refer to the User Guide.
Private URL has not been created.
Are you sure you want to disable the Private URL? If you have shared the Private URL with others they will no longer be able to use it to access your dataset.
You will not be able to make changes to this dataset while it is in review.
This dataset cannot be published until Wydział Chemii is published. Would you like to publish both right now?
Once you publish this dataset it must remain published.
Are you sure you want to republish this dataset?
Select if this is a minor or major version update.
This dataset cannot be published until Wydział Chemii is published by its administrator.
This dataset cannot be published until Wydział Chemii and Dane Badawcze UW are published.
Are you sure you want to deaccession? The selected version(s) will no longer be viewable by the public.
Contact person for this dataset, having substantive knowledge of the data
Please fill this out to prove you are not a robot.
