dc.contributor.author | Lv, Chunxiao | |
dc.contributor.author | Liu, Hongli | |
dc.contributor.author | Li, Daohao | |
dc.contributor.author | Chen, Shuai | |
dc.contributor.author | Zhang, Huawei | |
dc.contributor.author | She, Xilin | |
dc.contributor.author | Guo, Xiangxin | |
dc.contributor.author | Yang, Dongjiang | |
dc.date.accessioned | 2019-09-02T01:32:36Z | |
dc.date.available | 2019-09-02T01:32:36Z | |
dc.date.issued | 2019 | |
dc.identifier.issn | 0008-6223 | |
dc.identifier.doi | 10.1016/j.carbon.2018.10.091 | |
dc.identifier.uri | http://hdl.handle.net/10072/386839 | |
dc.description.abstract | The key challenge for high-performance sodium-ion batteries is the exploitation of appropriate electrode materials with a long cycling stability and high rate capability. This study reports the synthesis of a composite of ultrafine FeSe nanoparticles (NPs) and carbon nanofiber aerogel (CNFA) as anode material for SIBs. The composite features ultra-small (∼5 nm) NPs of FeSe uniformly embedded in interconnect three dimensional (3D) carbon nanofiber with large surface area, highly conductive network, and robust structural stability. As expected, the FeSe-CNFA-700 sample delivers a capacity as high as ∼313 mA h g−1 at 2000 mA g−1 after 1000 cycles and ultrahigh rate capability up to 20000 mA g−1. The significantly improved electrochemical performance could be attributed to the unique structure that combines a variety of advantages: easy access of electrolyte to the 3D network structure, pseudocapacitve charge storage and fast Na ion diffusion processes. The results confirm the intercalation of Na+ into the 3D ultrafine FeSe nanoparticles/carbon nanofiber aerogel is enhanced through the strong interaction between FeSe nanocrystals and the carbon layer. The density functional theory calculations demonstrate that the unique FeSe/carbon layer interface in 3D network structure can enhance Na storage due to the small energy barrier and negative adsorption energy. | |
dc.description.peerreviewed | Yes | |
dc.language | English | |
dc.language.iso | eng | |
dc.publisher | Elsevier | |
dc.relation.ispartofpagefrom | 106 | |
dc.relation.ispartofpageto | 115 | |
dc.relation.ispartofjournal | Carbon | |
dc.relation.ispartofvolume | 143 | |
dc.subject.fieldofresearch | Physical sciences | |
dc.subject.fieldofresearch | Chemical sciences | |
dc.subject.fieldofresearch | Engineering | |
dc.subject.fieldofresearchcode | 51 | |
dc.subject.fieldofresearchcode | 34 | |
dc.subject.fieldofresearchcode | 40 | |
dc.subject.keywords | Science & Technology | |
dc.subject.keywords | Technology | |
dc.subject.keywords | Chemistry, Physical | |
dc.subject.keywords | Materials Science, Multidisciplinary | |
dc.title | Ultrafine FeSe nanoparticles embedded into 3D carbon nanofiber aerogels with FeSe/Carbon interface for efficient and long-life sodium storage | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dcterms.bibliographicCitation | Lv, C; Liu, H; Li, D; Chen, S; Zhang, H; She, X; Guo, X; Yang, D, Ultrafine FeSe nanoparticles embedded into 3D carbon nanofiber aerogels with FeSe/Carbon interface for efficient and long-life sodium storage, Carbon, 2019, 143, pp. 106-115 | |
dcterms.license | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.date.updated | 2019-09-02T01:27:54Z | |
dc.description.version | Accepted Manuscript (AM) | |
gro.rights.copyright | © 2019 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited. | |
gro.hasfulltext | Full Text | |
gro.griffith.author | Yang, Dongjiang | |