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Sökning: onr:"swepub:oai:DiVA.org:ri-37669" > Free-standing super...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003924naa a2200505 4500
001oai:DiVA.org:ri-37669
003SwePub
008190129s2019 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-376692 URI
0247 a https://doi.org/10.1039/C8SC04936J2 DOI
040 a (SwePub)ri
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Schlee, Philippu Queen Mary University of London, UK4 aut
2451 0a Free-standing supercapacitors from kraft lignin nanofibers with remarkable volumetric energy density
264 1b Royal Society of Chemistry,c 2019
338 a electronic2 rdacarrier
520 a We have discovered a very simple method to address the challenge associated with the low volumetric energy density of free-standing carbon nanofiber electrodes for supercapacitors by electrospinning Kraft lignin in the presence of an oxidizing salt (NaNO3) and subsequent carbonization in a reducing atmosphere. The presence of the oxidative salt decreases the diameter of the resulting carbon nanofibers doubling their packing density from 0.51 to 1.03 mg cm−2 and hence doubling the volumetric energy density. At the same time, the oxidative NaNO3 salt eletrospun and carbonized together with lignin dissolved in NaOH acts as a template to increase the microporosity, thus contributing to a good gravimetric energy density. By simply adjusting the process parameters (amount of oxidizing/reducing agent), the gravimetric and volumetric energy density of the resulting lignin free-standing carbon nanofiber electrodes can be carefully tailored to fit specific power to energy demands. The areal capacitance increased from 147 mF cm−2 in the absence of NaNO3 to 350 mF cm−2 with NaNO3 translating into a volumetric energy density increase from 949 μW h cm−3 without NaNO3 to 2245 μW h cm−3 with NaNO3. Meanwhile, the gravimetric capacitance also increased from 151 F g−1 without to 192 F g−1 with NaNO3.
650 7a TEKNIK OCH TEKNOLOGIERx Materialteknik0 (SwePub)2052 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Materials Engineering0 (SwePub)2052 hsv//eng
653 a kraft lignin
653 a nanofibre
653 a supercapacitor
653 a volumetric energy density
7001 a Herou, Servannu Queen Mary University of London, UK; Imperial College London, UK4 aut
7001 a Jervis, Rhodriu University College London, UK4 aut
7001 a Shearing, Paul Ru University College London, UK4 aut
7001 a Brett, Dan J. L.u University College London, UK4 aut
7001 a Baker, Darrenu RISE,Bioraffinaderi och energi4 aut
7001 a Hosseinaei, Omidu RISE,Bioraffinaderi och energi4 aut0 (Swepub:ri)omidho@ri.se
7001 a Tomani, Peru RISE,Bioraffinaderi och energi4 aut
7001 a Murshed, Mangir M.u University of Bremen, Germany; Imperial College London, UK4 aut
7001 a Li, Yaominu University College London, UK4 aut
7001 a Mostazo-Lopez, Maria Joseu Universidad de Alicante, Spain4 aut
7001 a Cazorla-Amoros, Diegoau Universidad de Alicante, Spain4 aut
7001 a Sobrido, Ana Belen Jorgeu Queen Mary University of London, UK4 aut
7001 a Titirici, Maria-Magdalenau Queen Mary University of London, UK; Imperial College London, UK4 aut
7102 a Queen Mary University of London, UKb Queen Mary University of London, UK; Imperial College London, UK4 org
7730 t Chemical Scienced : Royal Society of Chemistryg 10:10, s. 2980-2988q 10:10<2980-2988x 2041-6539
8564 u https://doi.org/10.1039/C8SC04936Jy Fulltext
8564 u https://ri.diva-portal.org/smash/get/diva2:1283624/FULLTEXT01.pdfx primaryx Raw objecty fulltext:postprint
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-37669
8564 8u https://doi.org/10.1039/C8SC04936J

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