dc.contributor.author | Teppor, Patrick | |
dc.contributor.author | Jäger, Rutha | |
dc.contributor.author | Härk, Eneli | |
dc.contributor.author | Tallo, Indrek | |
dc.contributor.author | Joost, Urmas | |
dc.contributor.author | Kook, Mati | |
dc.contributor.author | Paiste, Päärn | |
dc.contributor.author | Šmits, Krišjānis | |
dc.contributor.author | Kirsimäe, Kalle | |
dc.contributor.author | Lust, Enn I. | |
dc.date.accessioned | 2020-10-01T13:38:40Z | |
dc.date.available | 2020-10-01T13:38:40Z | |
dc.date.issued | 2018 | |
dc.identifier.issn | 0013-4651 | |
dc.identifier.uri | https://dspace.lu.lv/dspace/handle/7/52568 | |
dc.description | This work was supported by the EU through the European Regional Development Fund under projects TK141 “Advanced materials and high-technology devices for energy recuperation systems” (2014-2020.4.01.15-0011), NAMUR ”Nanomaterials - research and applications” (3.2.0304.12-0397) and by the Estonian institutional research grant No. IUT20-13. | en_US |
dc.description.abstract | A simple and facile synthesis method was used to produce two Co-N/C type oxygen reduction reaction (ORR) catalysts. The materials were initially characterized by utilizing a variety of physical methods. Most importantly, the XPS analysis revealed high amounts of pyridinic nitrogen and Co-Nx species in the case of both studied Co-N/C catalysts. The electrochemical characterization showed that both of the synthesized Co-N/C catalysts have a high ORR activity in acidic media, displaying a half-wave potential of 0.70 V vs RHE. Additionally, the effect of varying the catalyst loading was studied and it was found that increasing the catalyst loading from 0.1 to 1.8 mg cm−2 significantly improved the ORR activity and the electron transfer number. Finally, several catalysts were subjected to a week-long stability test in order to establish their activity degradation rates. It was found that increased degradation rates of the Co-N/C catalysts were established at decreased catalyst loadings. | en_US |
dc.description.sponsorship | European Commission; ERDF 2014-2020.4.01.15-0011,TK141, NAMUR 3.2.0304.12-0397; Estonian institutional research grant No. IUT20-13; Institute of Solid State Physics, University of Latvia as the Center of Excellence has received funding from the European Union’s Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART² | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Electrochemical Society Inc. | en_US |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/739508/EU/Centre of Advanced Material Research and Technology Transfer/CAMART² | en_US |
dc.relation.ispartofseries | Journal of the Electrochemical Society;165 (14) | |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Research Subject Categories::NATURAL SCIENCES:Physics | en_US |
dc.title | ORR activity and stability of Co-N/C catalysts based on silicon carbide derived carbon and the impact of loading in acidic media | en_US |
dc.type | info:eu-repo/semantics/article | en_US |
dc.identifier.doi | 10.1149/2.0961814jes | |