English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/224588
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:


Exploring the application of carbon xerogels as anodes for sodium-ion batteries

AuthorsCuesta Pedrayes, Nuria CSIC ORCID; Cameán Martínez, Ignacio CSIC ORCID ; Arenillas de la Puente, Ana CSIC ORCID ; García Suárez, Ana Beatriz CSIC ORCID
KeywordsCarbon xerogels
Pore structure
Sodium-ion batteries
Issue Date8-Aug-2020
CitationMicroporous and Mesoporous Materials 308: 110542 (2020)
AbstractCarbon xerogels (CXs) with the same chemical composition and BET surface area but different pore sizes (10–200 nm), which had been easily produced in large amounts via a cost-effective microwave-based process, are investigated as anodes for sodium-ion batteries (SIBs). The role of textural properties of CXs in the process of sodium ions storage was evaluated. The most suitable anode for SIBs was CX-100 with a pore size of 100 nm, the largest micropore volume and the lowest external surface area (Sext), which gives an idea of the most accessible surface of the material, along with relatively high open porosity. Larger pore sizes facilitate electrolyte penetration, thus improving Na+ ions diffusion inside the electrode, while microporosity is crucial in increasing electrode capacity since Na+ ions storage on CXs is mainly due to absorption on the surface and in structural defects (i.e., microporosity). Moreover, lowering Sext leads to a decrease in the Na+ ions used in the formation of the SEI layer and irreversibly absorbed during initial cycles, therefore improving electrode performance. In summary, an optimal combination of textural properties, including pore structure and Sext, should be considered in order to effectively design CXs for SIBs.
Publisher version (URL)https://doi.org/10.1016/j.micromeso.2020.110542
Appears in Collections:(INCAR) Artículos
Files in This Item:
File Description SizeFormat 
Exploring_carbon_xerogels_Cuesta.pdf Embargoed until August 9, 20221,32 MBAdobe PDFThumbnail
View/Open    Request a copy
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.