Search: WFRF:(Titirici M. M.)
> (2019) >
Free-standing super...
Free-standing supercapacitors from kraft lignin nanofibers with remarkable volumetric energy density
-
- Schlee, Philipp (author)
- Queen Mary University of London, UK
-
- Herou, Servann (author)
- Queen Mary University of London, UK; Imperial College London, UK
-
- Jervis, Rhodri (author)
- University College London, UK
-
show more...
-
- Shearing, Paul R (author)
- University College London, UK
-
- Brett, Dan J. L. (author)
- University College London, UK
-
- Baker, Darren (author)
- RISE,Bioraffinaderi och energi
-
- Hosseinaei, Omid (author)
- RISE,Bioraffinaderi och energi
-
- Tomani, Per (author)
- RISE,Bioraffinaderi och energi
-
- Murshed, Mangir M. (author)
- University of Bremen, Germany; Imperial College London, UK
-
- Li, Yaomin (author)
- University College London, UK
-
- Mostazo-Lopez, Maria Jose (author)
- Universidad de Alicante, Spain
-
- Cazorla-Amoros, Diegoa (author)
- Universidad de Alicante, Spain
-
- Sobrido, Ana Belen Jorge (author)
- Queen Mary University of London, UK
-
- Titirici, Maria-Magdalena (author)
- Queen Mary University of London, UK; Imperial College London, UK
-
show less...
-
(creator_code:org_t)
- Royal Society of Chemistry, 2019
- 2019
- English.
-
In: Chemical Science. - : Royal Society of Chemistry. - 2041-6539. ; 10:10, s. 2980-2988
- Related links:
-
https://doi.org/10.1...
-
show more...
-
https://ri.diva-port... (primary) (Raw object)
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- 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.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Keyword
- kraft lignin
- nanofibre
- supercapacitor
- volumetric energy density
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Schlee, Philipp
-
Herou, Servann
-
Jervis, Rhodri
-
Shearing, Paul R
-
Brett, Dan J. L.
-
Baker, Darren
-
show more...
-
Hosseinaei, Omid
-
Tomani, Per
-
Murshed, Mangir ...
-
Li, Yaomin
-
Mostazo-Lopez, M ...
-
Cazorla-Amoros, ...
-
Sobrido, Ana Bel ...
-
Titirici, Maria- ...
-
show less...
- About the subject
-
- ENGINEERING AND TECHNOLOGY
-
ENGINEERING AND ...
-
and Materials Engine ...
- Articles in the publication
-
Chemical Science
- By the university
-
RISE