English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/226635
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Dual carbon potassium-ion capacitors: Biomass-derived graphene-like carbon nanosheet cathodes

AuthorsPham, Hong Duc; Mahale, Kiran; Hoang, Thi My Linh; Mundree, Sagadevan G.; Gómez-Romero, P. CSIC ORCID ; Dubal, Deepak P. CSIC ORCID
Issue Date2020
PublisherAmerican Chemical Society
CitationACS Applied Materials and Interfaces 12(43): 48518–48525 (2020)
AbstractPotassium-ion storage devices are attracting tremendous attention for wide-ranging applications on account of their low cost, fast charge transport in electrolytes, and large working voltage. However, developing cost-effective, high-energy electrodes with excellent structural stability to ensure long-term cycling performance is a major challenge. In this contribution, we have derived two different forms of carbon materials from almond shells using different chemical treatments. For instance, hard carbon (HC) and graphene-like activated carbon (AC) nanosheets are developed by employing simple carbonization and chemical activation routes, respectively. The resultant hard carbon (AS-HC) and activated carbon (AS-AC) exhibit outstanding electrochemical performance as negative and positive electrodes in a potassium-ion battery (KIB), respectively, through their tailor-made surface properties. These promising benefits pave a way to construct a biomass-derived carbon potassium-ion capacitor (KIC) by employing AS-HC as the negative electrode and AS-AC as the positive electrode in a K-based electrolyte. The as-fabricated KIC delivers a reasonable specific energy of 105 Wh/kg and excellent cycling life with negligible capacitance fading over 10 000 cycles. This “waste-to-wealth” approach can promote the development of sustainable KICs at low cost and inspire their use for fast-rate K-based energy storage applications.
Publisher version (URL)https://doi.org/10.1021/acsami.0c12379
URIhttp://hdl.handle.net/10261/226635
DOIhttp://dx.doi.org/10.1021/acsami.0c12379
ISSN1944-8252
Appears in Collections:(CIN2) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf59,24 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.