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Pàgina inicial > Articles > Articles publicats > Monodisperse CoSn and NiSn nanoparticles supported on commercial carbon as anode for lithium- and potassium-ion batteries |
Data: | 2020 |
Resum: | Monodisperse CoSn and NiSn nanoparticles were prepared in solution and supported on commercial carbon black. The obtained nanocomposites were applied as anodes for Li- and K-ion batteries. CoSn@C delivered stable average capacities of 850, 650, and 500 mAh g-1 at 0. 2, 1. 0, and 2. 0 A g-1, respectively, well above those of commercial graphite anodes. The capacity of NiSn@C retained up to 575 mAh g-1 at a current of 1. 0 A g-1 over 200 continuous cycles. Up to 74. 5 and 69. 7% pseudocapacitance contributions for Li-ion batteries were measured for CoSn@C and NiSn@C, respectively, at 1. 0 mV s-1. CoSn@C was further tested in full-cell lithium-ion batteries with a LiFePO4 cathode to yield a stable capacity of 350 mAh g-1 at a rate of 0. 2 A g-1. As electrode in K-ion batteries, CoSn@C composites presented a stable capacity of around 200 mAh g-1 at 0. 2 A g-1 over 400 continuous cycles, and NiSn@C delivered a lower capacity of around 100 mAh g-1 over 300 cycles. |
Ajuts: | Ministerio de Economía y Competitividad RTI2018-093996-B-C31 Ministerio de Economía y Competitividad ENE2017-85087-C3 Ministerio de Economía y Competitividad ENE2016-77798-C4-3-R Ministerio de Economía y Competitividad SEV-2013-0295 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-327 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-128 |
Nota: | Altres ajuts: Catalan Institute of Nanoscience and Nanotechnology (ICN2) is funded by the CERCA Programme/Generalitat de Catalunya. H.X. and T.Z. thank the CSC-UAB PhD scholarship program. Part of the present work has been performed in the framework of Universitat Autònoma de Barcelona Materials Science PhD program. |
Drets: | Tots els drets reservats. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió sotmesa a revisió |
Matèria: | Colloidal nanoparticles ; Bimetallic alloys ; Anode ; Lithium-ion batteries ; Potassium-ion batteries |
Publicat a: | ACS applied materials & interfaces, Vol. 12 issue 4 (Jan 2020) , p. 4414-4422, ISSN 1944-8252 |
Preprint 12 p, 1.3 MB |