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Conjugation with carbon nanotubes improves the performance of mesoporous silicon as Li-ion battery anode

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Ikonen, Timo
dc.contributor.author Kalidas, Nathiya
dc.contributor.author Lahtinen, Katja
dc.contributor.author Isoniemi, Tommi
dc.contributor.author Toppari, J. Jussi
dc.contributor.author Vázquez, Ester
dc.contributor.author Herrero-Chamorro, M. Antonia
dc.contributor.author Fierro, José Luis G.
dc.contributor.author Kallio, Tanja
dc.contributor.author Lehto, Vesa Pekka
dc.date.accessioned 2020-06-01T06:55:58Z
dc.date.available 2020-06-01T06:55:58Z
dc.date.issued 2020-03-27
dc.identifier.citation Ikonen , T , Kalidas , N , Lahtinen , K , Isoniemi , T , Toppari , J J , Vázquez , E , Herrero-Chamorro , M A , Fierro , J L G , Kallio , T & Lehto , V P 2020 , ' Conjugation with carbon nanotubes improves the performance of mesoporous silicon as Li-ion battery anode ' , Scientific Reports , vol. 10 , no. 1 , 5589 . https://doi.org/10.1038/s41598-020-62564-0 en
dc.identifier.issn 2045-2322
dc.identifier.other PURE UUID: ddf879c2-01b7-4d87-b415-22f0b64333a1
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/conjugation-with-carbon-nanotubes-improves-the-performance-of-mesoporous-silicon-as-liion-battery-anode(ddf879c2-01b7-4d87-b415-22f0b64333a1).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85082529037&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/42953565/CHEM_Ikonen_et_al_2020_Conjugation_carbon_nanotubes_SciRep.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/44561
dc.description.abstract Carbon nanotubes can be utilized in several ways to enhance the performance of silicon-based anodes. In the present work, thermally carbonized mesoporous silicon (TCPSi) microparticles and single-walled carbon nanotubes (CNTs) are conjugated to create a hybrid material that performs as the Li-ion battery anode better than the physical mixture of TCPSi and CNTs. It is found out that the way the conjugation is done has an essential role in the performance of the anode. The conjugation should be made between negatively charged TCPSi and positively charged CNTs. Based on the electrochemical experiments it is concluded that the positive charges, i.e., excess amine groups of the hybrid material interfere with the diffusion of the lithium cations and thus they should be removed from the anode. Through the saturation of the excess positive amine groups on the CNTs with succinic anhydride, the performance of the hybrid material is even further enhanced. en
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Nature Publishing Group
dc.relation.ispartofseries Scientific Reports en
dc.relation.ispartofseries Volume 10, issue 1 en
dc.rights openAccess en
dc.title Conjugation with carbon nanotubes improves the performance of mesoporous silicon as Li-ion battery anode en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department University of Eastern Finland
dc.contributor.department Electrochemical Energy Conversion
dc.contributor.department Italian Institute of Technology
dc.contributor.department University of Jyväskylä
dc.contributor.department University of Castilla-La Mancha
dc.contributor.department CSIC - Institute of Catalysis and Petrochemistry
dc.contributor.department Department of Chemistry and Materials Science en
dc.identifier.urn URN:NBN:fi:aalto-202006013534
dc.identifier.doi 10.1038/s41598-020-62564-0
dc.type.version publishedVersion

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