Nanoporous carbons from hydrothermally treated biomass as anode materials for lithium ion batteries

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dc.authorid0000-0001-5807-633Xen_US
dc.contributor.authorÜnür Yılmaz, Ece
dc.contributor.authorBrutti, Sergio
dc.contributor.authorPanero, Stefania
dc.contributor.authorScrosati, Bruno
dc.date.accessioned2021-03-20T20:15:51Z
dc.date.available2021-03-20T20:15:51Z
dc.date.issued2013
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Kimya Bölümüen_US
dc.description.abstractBiomass is transformed to carbon nanoparticles with surface-end groups called 'hydrochar' (HC) by an efficient and green hydrothermal carbonization (HTC) method. Three different approaches are used to introduce porosity to the HC: sole heat treatment, traditional potassium hydroxide (KOH) activation, and environmentally benign magnesium oxide (MgO) templating. All the resulting microporous materials are tested as Li-ion intercalation hosts in lithium cells by using an 1 M LiPF6 in EC/DMC electrolyte solution. They all show stable reversible capacities at elevated current rates (1C), closely comparable to the maximum theoretical capacity of graphite. Among all the materials studied, the HC-MA with a surface area of 150 m(2) g(-1) and obtained by MgO templating of the hydrochar shows the best cycling performance in lithium cell at room temperature (307 mAh g(-1), at cycle 100 at 1C). The HC-600 with the highest degree of aromaticity/order, lowest content of oxygen functional groups and surface area of 250 m(2) g(-1), obtained by heating the hydrochar at 600 degrees C under inert atmosphere, shows the best power and overall performance with its ability to sustain high discharge/charge rates (1C, 2C, 5C, 10C, 20C). These electrochemical performances attained with materials of reasonable specific surface areas - obtained by green, low cost and practical strategies - can address the space limitations in Li-ion battery applications by improving volumetric energy densities. (C) 2013 Elsevier Inc. All rights reserved.en_US
dc.description.sponsorshipTekno-Last Ltd., Inc.en_US
dc.description.sponsorshipAuthors are grateful to Bursa Cement Factory Co., Inc. for allowing the use of their facilities for the preparation of the samples. Authors extend their sincere gratitude to the Middle East Technical University Central Laboratory for their support in characterization experiments and Dr.Angela De Bonis from University of Basilicata (Potenza) for her support with Raman Spectroscopy. Last but not least, authors would like to thank Tekno-Last Ltd., Inc. for financially supporting this project.en_US
dc.identifier.doi10.1016/j.micromeso.2013.02.032en_US
dc.identifier.endpage33en_US
dc.identifier.issn1387-1811
dc.identifier.issn1873-3093
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage25en_US
dc.identifier.urihttp://doi.org/10.1016/j.micromeso.2013.02.032
dc.identifier.urihttps://hdl.handle.net/20.500.12885/1244
dc.identifier.volume174en_US
dc.identifier.wosWOS:000318830500005en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorÜnür Yılmaz, Ece
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofMicroporous And Mesoporous Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectLithium ion batteriesen_US
dc.subjectBiomassen_US
dc.subjectHydrothermal carbonizationen_US
dc.subjectCarbon anodeen_US
dc.titleNanoporous carbons from hydrothermally treated biomass as anode materials for lithium ion batteriesen_US
dc.typeArticleen_US

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