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Radiation-induced synthesis of nanoscale Co- and Ni-based electro-catalysts on carbon for the oxygen reduction reaction
KTH, School of Chemical Science and Engineering (CHE).
KTH, School of Chemical Science and Engineering (CHE).
KTH, School of Chemical Science and Engineering (CHE).
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2017 (English)In: Dalton Transactions, ISSN 1477-9226, E-ISSN 1477-9234, Vol. 46, no 30, 9995-10002 p.Article in journal (Refereed) Published
Abstract [en]

A facile synthesis of 3d-metal based electro-catalysts directly incorporated into a carbon support was carried out by.-radiation. Transition metals of period 4, i.e. Ni and Co, were precipitated and reduced from their respective salt solutions. The obtained materials were characterized by XRD, SEM, SQUID and the BET methods. Thereafter, the electrodes for fuel cells were fabricated out of synthesized material and their electrochemical performance for the oxygen reduction reaction in 6 M KOH was measured. Although the concentrations of Co and Ni in the electrode material were low (3.4% Co and 0.4% Ni) after reduction by irradiation, both the Ni and Co-based gas diffusion electrodes showed high catalytic activity for oxygen reduction both at room temperature and at 60 degrees C.

Place, publisher, year, edition, pages
ROYAL SOC CHEMISTRY , 2017. Vol. 46, no 30, 9995-10002 p.
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-214894DOI: 10.1039/c7dt01162hISI: 000408695300030PubMedID: 28726886Scopus ID: 2-s2.0-85026821480OAI: oai:DiVA.org:kth-214894DiVA: diva2:1151307
Note

QC 20171023

Available from: 2017-10-23 Created: 2017-10-23 Last updated: 2017-10-23Bibliographically approved

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Paulraj, Alagar R.Kiros, Yohannes

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School of Chemical Science and Engineering (CHE)Chemical Engineering and TechnologyChemical TechnologyChemical Engineering and TechnologyChemical Reaction Engineering
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Dalton Transactions
Inorganic Chemistry

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