Show simple item record

dc.creatorKostoglou, Nikolaos
dc.creatorKoczwara, Christian
dc.creatorPrehal, Christian
dc.creatorTerziyska, Velislava
dc.creatorBabić, Biljana M.
dc.creatorMatović, Branko
dc.creatorConstantinides, Georgios
dc.creatorTampaxis, Christos
dc.creatorCharalambopoulou, Georgia
dc.creatorSteriotis, Theodore
dc.creatorHinder, Steve
dc.creatorBaker, Mark
dc.creatorPolychronopoulou, Kyriaki
dc.creatorDoumanidis, Charalabos
dc.creatorParis, Oskar
dc.creatorMitterer, Christian
dc.creatorRebholz, Claus
dc.date.accessioned2018-03-01T17:52:46Z
dc.date.available2018-03-01T17:52:46Z
dc.date.issued2017
dc.identifier.issn2211-2855 (print)
dc.identifier.issn2211-3282 (electronic)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/1749
dc.description.abstractThe efficient storage of energy combined with a minimum carbon footprint is still considered one of the major challenges towards the transition to a progressive, sustainable and environmental friendly society on a global scale. The energy storage in pure chemical form using gas carriers with high heating values, including H-2 and CH4, as well as via electrochemical means using state-of-the-art devices, such as batteries or supercapacitors, are two of the most attractive alternatives for the combustion of finite, carbon-rich and environmentally harmful fossil fuels, such as diesel and gasoline. A few-step, reproducible and scalable method is presented in this study for the preparation of an ultra-microporous (average pore size around 0.6 nm) activated carbon cloth (ACC) with large specific area ( GT 1200 m(2)/g) and pore volume (similar to 0.5 cm(3)/g) upon combining chemical impregnation, carbonization and CO2 activation of a low-cost cellulose-based polymeric fabric. The ACC material shows a versatile character towards three different applications, including H2 storage via cryo-adsorption, separation of energy-dense CO2/CH4 mixtures via selective adsorption and electrochemical energy storage using super-capacitor technology. Fully reversible H-2 uptake capacities in excess of 3.1 wt% at 77 K and similar to 72 bar along with a significant heat of adsorption value of up to 8.4 kJ/mol for low surface coverage have been found. Upon incorporation of low-pressure sorption data in the ideal adsorbed solution theory model, the ACC is predicted to selectively adsorb about 4.5 times more CO2 than CH4 in ambient conditions and thus represents an appealing adsorbent for the purification of such gaseous mixtures. Finally, an electric double-layer capacitor device was assembled and tested for its electrochemical performance, constructed of binder-free and flexible ACC electrodes and aqueous CsCl electrolyte. The full-cell exhibits a gravimetric capacitance of similar to 121 F/g for a specific current of 0.02 A/g, which relative to the ACCs specific area, is superior to commercially available activated carbons. A capacitance retention of more than 97% was observed after 10,000 charging/discharging cycles, thus indicating the ACCs suitability for demanding and high-performance energy storage on a commercial scale. The enhanced performance in all tested applications seems to be attributed to the mean ultra-micropore size of the ACC material instead of the available specific area and/or pore volume.en
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/284522/EU//
dc.relationKhalifa University Internal Research Fund, Austrian Klima- und Energiefonds via FFG program Energieforschung (Project: Hybrid Supercap), Montanuniversitat Leoben
dc.rightsrestrictedAccessen
dc.sourceNano Energyen
dc.subjectActivated carbon clothen
dc.subjectNanoporous materialen
dc.subjectAdsorptionen
dc.subjectH-2 storageen
dc.subjectCO2/CH4 selectivityen
dc.subjectSupercapacitor electrodeen
dc.titleNanoporous activated carbon cloth as a versatile material for hydrogen adsorption, selective gas separation and electrochemical energy storageen
dc.typearticleen
dcterms.abstractЦхараламбопоулоу, Георгиа; Коцзwара, Цхристиан; Костоглоу, Николаос; Матовић Бранко; Доуманидис, Цхаралабос; Цонстантинидес, Георгиос; Терзиyска, Велислава; Стериотис, Тхеодоре; Тампаxис, Цхристос; Миттерер, Цхристиан; Парис, Оскар; Прехал, Цхристиан; Хиндер, Стеве; Ребхолз, Цлаус; Бакер, Марк; Полyцхронопоулоу, Кyриаки; Бабиц, Биљана;
dc.citation.volume40
dc.citation.spage49
dc.citation.epage64
dc.identifier.wos000411687800007
dc.identifier.doi10.1016/j.nanoen.2017.07.056
dc.identifier.scopus2-s2.0-85028031963


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record