Charge storage properties of a alpha-MoO3/carboxyl-functionalized single-walled carbon nanotube composite electrode in a Li ion electrolyte
A facile, cost-effective and scaleable method is presented for the fabrication of thin film α-MoO3/SWCNT-COOH composite electrodes with a high charge storage capacity in LiClO4/propylene carbonate in a 1.5-3.5 V (versus Li/Li+) working electrochemical window. α-MoO3 nanobelts were synthesized using...
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| Format: | Journal article |
| Language: | English |
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2013
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| _version_ | 1797079312478765056 |
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| author | Mendoza-Sanchez, B Grant, P |
| author_facet | Mendoza-Sanchez, B Grant, P |
| author_sort | Mendoza-Sanchez, B |
| collection | OXFORD |
| description | A facile, cost-effective and scaleable method is presented for the fabrication of thin film α-MoO3/SWCNT-COOH composite electrodes with a high charge storage capacity in LiClO4/propylene carbonate in a 1.5-3.5 V (versus Li/Li+) working electrochemical window. α-MoO3 nanobelts were synthesized using an established hydrothermal method and composite thin film electrodes incorporating interwoven single walled carbon nanotubes as an electrical conductive additive within a network of α-MoO3 nanobelts were manufactured by spray deposition. The composite electrode showed a maximum charge storage/capacitance of 697.7 C g-1 (193.8 mAh g-1)/ 348.7 F g-1 at 0.1 mV s-1 (per unit mass of composite electrode) with a contribution to charge storage from capacitive and diffusion controlled processes of 443 C g-1 and 463.2 C g-1 (per unit mass of α-MoO 3), respectively, which is comparable to charge storage attained by electrodes manufactured by more costly and non-scaleable templating methods previously reported. Cyclic voltammetry showed capacitances of 167 F g -1 and 75 F g-1 at 10 mV s-1 and 50 mV s -1, respectively, suggesting a potential application as electrochemical capacitor electrodes of moderate power densities. On the other hand, a charge storage of 697.7 C g-1 (193.8 mAh g-1) attained at 0.1 mV s-1, and a capacity of 596.8 mAh g-1 achieved at 10 mA g-1 in galvanostatic charge-discharge experiments supports a potential application of α-MoO3 as a Li-ion battery cathode. © 2013 Elsevier Ltd. All rights reserved. |
| first_indexed | 2024-03-07T00:44:02Z |
| format | Journal article |
| id | oxford-uuid:84015ea4-bfa9-439b-999e-0b15cb43c8fe |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:44:02Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | oxford-uuid:84015ea4-bfa9-439b-999e-0b15cb43c8fe2022-03-26T21:48:14ZCharge storage properties of a alpha-MoO3/carboxyl-functionalized single-walled carbon nanotube composite electrode in a Li ion electrolyteJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:84015ea4-bfa9-439b-999e-0b15cb43c8feEnglishSymplectic Elements at Oxford2013Mendoza-Sanchez, BGrant, PA facile, cost-effective and scaleable method is presented for the fabrication of thin film α-MoO3/SWCNT-COOH composite electrodes with a high charge storage capacity in LiClO4/propylene carbonate in a 1.5-3.5 V (versus Li/Li+) working electrochemical window. α-MoO3 nanobelts were synthesized using an established hydrothermal method and composite thin film electrodes incorporating interwoven single walled carbon nanotubes as an electrical conductive additive within a network of α-MoO3 nanobelts were manufactured by spray deposition. The composite electrode showed a maximum charge storage/capacitance of 697.7 C g-1 (193.8 mAh g-1)/ 348.7 F g-1 at 0.1 mV s-1 (per unit mass of composite electrode) with a contribution to charge storage from capacitive and diffusion controlled processes of 443 C g-1 and 463.2 C g-1 (per unit mass of α-MoO 3), respectively, which is comparable to charge storage attained by electrodes manufactured by more costly and non-scaleable templating methods previously reported. Cyclic voltammetry showed capacitances of 167 F g -1 and 75 F g-1 at 10 mV s-1 and 50 mV s -1, respectively, suggesting a potential application as electrochemical capacitor electrodes of moderate power densities. On the other hand, a charge storage of 697.7 C g-1 (193.8 mAh g-1) attained at 0.1 mV s-1, and a capacity of 596.8 mAh g-1 achieved at 10 mA g-1 in galvanostatic charge-discharge experiments supports a potential application of α-MoO3 as a Li-ion battery cathode. © 2013 Elsevier Ltd. All rights reserved. |
| spellingShingle | Mendoza-Sanchez, B Grant, P Charge storage properties of a alpha-MoO3/carboxyl-functionalized single-walled carbon nanotube composite electrode in a Li ion electrolyte |
| title | Charge storage properties of a alpha-MoO3/carboxyl-functionalized single-walled carbon nanotube composite electrode in a Li ion electrolyte |
| title_full | Charge storage properties of a alpha-MoO3/carboxyl-functionalized single-walled carbon nanotube composite electrode in a Li ion electrolyte |
| title_fullStr | Charge storage properties of a alpha-MoO3/carboxyl-functionalized single-walled carbon nanotube composite electrode in a Li ion electrolyte |
| title_full_unstemmed | Charge storage properties of a alpha-MoO3/carboxyl-functionalized single-walled carbon nanotube composite electrode in a Li ion electrolyte |
| title_short | Charge storage properties of a alpha-MoO3/carboxyl-functionalized single-walled carbon nanotube composite electrode in a Li ion electrolyte |
| title_sort | charge storage properties of a alpha moo3 carboxyl functionalized single walled carbon nanotube composite electrode in a li ion electrolyte |
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