Coffee Waste-Derived Nanoporous Carbons for Hydrogen Storage

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorStock, Sebastianen_US
dc.contributor.authorKostoglou, Nikolaosen_US
dc.contributor.authorSelinger, Julianen_US
dc.contributor.authorSpirk, Stefanen_US
dc.contributor.authorTampaxis, Christosen_US
dc.contributor.authorCharalambopoulou, Georgiaen_US
dc.contributor.authorSteriotis, Theodoreen_US
dc.contributor.authorRebholz, Clausen_US
dc.contributor.authorMitterer, Christianen_US
dc.contributor.authorParis, Oskaren_US
dc.contributor.departmentDepartment of Bioproducts and Biosystemsen
dc.contributor.groupauthorBiorefineriesen
dc.contributor.organizationUniversity of Leobenen_US
dc.contributor.organizationDemokritos National Centre for Scientific Researchen_US
dc.contributor.organizationUniversity of Cyprusen_US
dc.contributor.organizationGraz University of Technologyen_US
dc.date.accessioned2022-09-28T06:28:21Z
dc.date.available2022-09-28T06:28:21Z
dc.date.issued2022-09-26en_US
dc.descriptionPublisher Copyright: © 2022 The Authors. Published by American Chemical Society.
dc.description.abstractBiological waste such as residues from the food and beverage industry provides a valuable and abundant resource to be used as a precursor for the synthesis of activated carbons that can be subsequently employed as adsorbents for, e.g., hydrogen storage. Materials with a large specific surface area and pores of appropriate size are necessary to achieve reasonable hydrogen adsorption capacity. Here, we present the repeatable synthesis of activated carbons from coffee waste, i.e., spent coffee grounds and coffee silver skins, on the basis of two independently synthesized batches. The carbonization process under nitrogen gas flow followed by chemical activation with solid potassium hydroxide results in microporous carbons with bimodal pore size distribution and specific surface area up to 3300 and 2680 m2/g based on Brunauer-Emmett-Teller and density functional theory methods, respectively. The materials exhibit excellent hydrogen adsorption performance under cryogenic conditions (77 K), reaching high and fully reversible excess gravimetric hydrogen uptake values of up to 5.79 wt % at 37 bar, and total capacities exceeding 9 wt % at 100 bar.en
dc.description.versionPeer revieweden
dc.format.extent10915–10926
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationStock, S, Kostoglou, N, Selinger, J, Spirk, S, Tampaxis, C, Charalambopoulou, G, Steriotis, T, Rebholz, C, Mitterer, C & Paris, O 2022, ' Coffee Waste-Derived Nanoporous Carbons for Hydrogen Storage ', ACS Applied Energy Materials, vol. 5, no. 9, pp. 10915–10926 . https://doi.org/10.1021/acsaem.2c01573en
dc.identifier.doi10.1021/acsaem.2c01573en_US
dc.identifier.issn2574-0962
dc.identifier.otherPURE UUID: 51523e46-c48b-492b-89c0-2e4875bb0a76en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/51523e46-c48b-492b-89c0-2e4875bb0a76en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85137663497&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/88676547/CHEM_Stock_et_al_Coffee_Waste_Derived_2022_ACS_Applied_Energy_Materials.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/116974
dc.identifier.urnURN:NBN:fi:aalto-202209285770
dc.language.isoenen
dc.publisherAMERICAN CHEMICAL SOCIETY
dc.relation.ispartofseriesACS Applied Energy Materialsen
dc.relation.ispartofseriesVolume 5, issue 9en
dc.rightsopenAccessen
dc.subject.keywordactivated carbonsen_US
dc.subject.keywordcoffee wasteen_US
dc.subject.keywordgas sorption analysisen_US
dc.subject.keywordhydrogen storageen_US
dc.subject.keywordnanoporous structuresen_US
dc.subject.keywordX-ray scatteringen_US
dc.titleCoffee Waste-Derived Nanoporous Carbons for Hydrogen Storageen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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