Pt-grown carbon nanofibers for detection of hydrogen peroxide
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Campo DC | Valor | Idioma |
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dc.contributor | Electroquímica de Superficies | es_ES |
dc.contributor.author | Isoaho, Noora | - |
dc.contributor.author | Sainio, Sami | - |
dc.contributor.author | Wester, Niklas | - |
dc.contributor.author | Botello, Luis | - |
dc.contributor.author | Johansson, Leena-Sisko | - |
dc.contributor.author | Peltola, Emilia | - |
dc.contributor.author | Climent, Victor | - |
dc.contributor.author | Feliu, Juan M. | - |
dc.contributor.author | Koskinen, Jari | - |
dc.contributor.author | Laurila, Tomi | - |
dc.contributor.other | Universidad de Alicante. Departamento de Química Física | es_ES |
dc.contributor.other | Universidad de Alicante. Instituto Universitario de Electroquímica | es_ES |
dc.date.accessioned | 2018-04-16T09:43:47Z | - |
dc.date.available | 2018-04-16T09:43:47Z | - |
dc.date.issued | 2018-04-03 | - |
dc.identifier.citation | RSC Advances. 2018, 8: 12742-12751. doi:10.1039/C8RA01703D | es_ES |
dc.identifier.issn | 2046-2069 | - |
dc.identifier.uri | http://hdl.handle.net/10045/74771 | - |
dc.description.abstract | Removal of left-over catalyst particles from carbon nanomaterials is a significant scientific and technological problem. Here, we present the physical and electrochemical study of application-specific carbon nanofibers grown from Pt-catalyst layers. The use of Pt catalyst removes the requirement for any cleaning procedure as the remaining catalyst particles have a specific role in the end-application. Despite the relatively small amount of Pt in the samples (7.0 ± 0.2%), they show electrochemical features closely resembling those of polycrystalline Pt. In O2-containing environment, the material shows two separate linear ranges for hydrogen peroxide reduction: 1–100 μM and 100–1000 μM with sensitivities of 0.432 μA μM−1 cm−2 and 0.257 μA μM−1 cm−2, respectively, with a 0.21 μM limit of detection. In deaerated solution, there is only one linear range with sensitivity 0.244 μA μM−1 cm−2 and 0.22 μM limit of detection. We suggest that the high sensitivity between 1 μM and 100 μM in solutions where O2 is present is due to oxygen reduction reaction occurring on the CNFs producing a small additional cathodic contribution to the measured current. This has important implications when Pt-containing sensors are utilized to detect hydrogen peroxide reduction in biological, O2-containing environment. | es_ES |
dc.description.sponsorship | Academy of Finland (E. P. grant #274670, T. L. grant #285526), Biocentrum Helsinki and Finnish Cultural Foundation are acknowledged for funding. J. F. and V. C. acknowledge financial funding from the Ministerio de Economia, Industria y Competitividad (CTQ2016-76221 P). | es_ES |
dc.language | eng | es_ES |
dc.publisher | Royal Society of Chemistry | es_ES |
dc.rights | This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence | es_ES |
dc.subject | Pt catalyst | es_ES |
dc.subject | Carbon nanofibers | es_ES |
dc.subject | Hydrogen peroxide | es_ES |
dc.subject.other | Química Física | es_ES |
dc.title | Pt-grown carbon nanofibers for detection of hydrogen peroxide | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.peerreviewed | si | es_ES |
dc.identifier.doi | 10.1039/C8RA01703D | - |
dc.relation.publisherversion | https://doi.org/10.1039/C8RA01703D | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTQ2016-76221-P | - |
Aparece en las colecciones: | INV - EQSUP - Artículos de Revistas |
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2018_Isoaho_etal_RSCAdv.pdf | 1,31 MB | Adobe PDF | Abrir Vista previa | |
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