Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorKong, Dezhien_US
dc.contributor.authorWang, Yeen_US
dc.contributor.authorHuang, Shaozhuanen_US
dc.contributor.authorLim, Yew Vonen_US
dc.contributor.authorZhang, Junen_US
dc.contributor.authorSun, Linfengen_US
dc.contributor.authorLiu, Boen_US
dc.contributor.authorChen, Tupeien_US
dc.contributor.authorValdivia y Alvarado, Pabloen_US
dc.contributor.authorYang, Hui Yingen_US
dc.identifier.citationKong, D., Wang, Y., Huang, S., Lim, Y. V., Zhang, J., Sun, L., Liu, B., Chen, T., Valdivia y Alvarado, P. & Yang, H. Y. (2019). Surface modification of Na₂Ti₃O₇ nanofibre arrays using N-doped graphene quantum dots as advanced anodes for sodium-ion batteries with ultra-stable and high-rate capability. Journal of Materials Chemistry A, 7(20), 12751-12762.
dc.description.abstractBoth nanoscale surface modification and structural control play significant roles in enhancing the electrochemical properties of battery electrodes. Herein, we design a novel binder-free anode via N-doped graphene quantum dot (N-GQD) decorated Na₂Ti₃O₇ nanofibre arrays (Na₂Ti₃O₇ NFAs) directly grown on flexible carbon textiles (CTs) for high-performance sodium-ion batteries (SIBs). Three dimensional (3D) hierarchical Na₂Ti₃O₇ NFAs constructed from ultrathin Na₂Ti₃O₇ nanosheets provide a large specific surface area and shorter diffusion paths for both ions and electrons. More importantly, the unique N-GQD soft protection produces greatly increased surface conductivity and imparts stability to the nanofibre array structure, leading to fast Na-ion diffusion kinetics. As a result, the flexible 3D hierarchical Na₂Ti₃O₇@N-GQDs/CT electrode as a binder-free anode for a sodium half-battery delivers a high specific capacity of 158 mA h g⁻¹ after 30 cycles and retains ∼92.5% of this capacity after 1000 cycles at a high rate of 4C (1C = 177 mA g⁻¹). Furthermore, it can be assembled into a flexible full cell with Na₃V₂(PO₄)₃@NC/CTs as the cathode, which exhibits high levels of flexibility, excellent long-term cycling stability, and outstanding energy/power density. Our results open up a new approach for the surface modification strategy to enhance the performance of battery electrodes.en_US
dc.relation.ispartofJournal of Materials Chemistry Aen_US
dc.rights© 2019 The Royal Society of Chemistry. All rights reserved.en_US
dc.subjectEngineering::Electrical and electronic engineeringen_US
dc.titleSurface modification of Na₂Ti₃O₇ nanofibre arrays using N-doped graphene quantum dots as advanced anodes for sodium-ion batteries with ultra-stable and high-rate capabilityen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.subject.keywordsHigh-performance Anodeen_US
dc.subject.keywordsTitanate Nanotubeen_US
dc.description.acknowledgementThis work is supported by the SUTD Digital Manufacturing and Design (DManD) Centre and International Design Centre (IDC).en_US
item.fulltextNo Fulltext-
Appears in Collections:EEE Journal Articles

Citations 5

Updated on Mar 21, 2023

Web of ScienceTM
Citations 5

Updated on Mar 26, 2023

Page view(s)

Updated on Mar 28, 2023

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.