Surface Modification of Nanocrystalline LiMn<sub>2</sub>O<sub>4</sub> Using Graphene Oxide Flakes
In this work, a facile, wet chemical synthesis was utilized to achieve a series of lithium manganese oxide (LiMn<sub>2</sub>O<sub>4</sub>, (LMO) with 1–5%wt. graphene oxide (GO) composites. The average crystallite sizes estimated by the Rietveld method of LMO/GO nanocomposite...
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MDPI AG
2021-07-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/15/4134 |
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| author | Monika Michalska Dominika A. Buchberger Jacek B. Jasiński Arjun K. Thapa Amrita Jain |
| author_facet | Monika Michalska Dominika A. Buchberger Jacek B. Jasiński Arjun K. Thapa Amrita Jain |
| author_sort | Monika Michalska |
| collection | DOAJ |
| description | In this work, a facile, wet chemical synthesis was utilized to achieve a series of lithium manganese oxide (LiMn<sub>2</sub>O<sub>4</sub>, (LMO) with 1–5%wt. graphene oxide (GO) composites. The average crystallite sizes estimated by the Rietveld method of LMO/GO nanocomposites were in the range of 18–27 nm. The electrochemical performance was studied using CR2013 coin-type cell batteries prepared from pristine LMO material and LMO modified with 5%wt. GO. Synthesized materials were tested as positive electrodes for Li-ion batteries in the voltage range between 3.0 and 4.3 V at room temperature. The specific discharge capacity after 100 cycles for LMO and LMO/5%wt. GO were 84 and 83 mAh g<sup>−1</sup>, respectively. The LMO material modified with 5%wt. of graphene oxide flakes retained more than 91% of its initial specific capacity, as compared with the 86% of pristine LMO material. |
| first_indexed | 2024-03-10T09:13:19Z |
| format | Article |
| id | doaj.art-bbfe3728e3554e77a0147841975c2ffe |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T09:13:19Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-bbfe3728e3554e77a0147841975c2ffe2023-11-22T05:52:13ZengMDPI AGMaterials1996-19442021-07-011415413410.3390/ma14154134Surface Modification of Nanocrystalline LiMn<sub>2</sub>O<sub>4</sub> Using Graphene Oxide FlakesMonika Michalska0Dominika A. Buchberger1Jacek B. Jasiński2Arjun K. Thapa3Amrita Jain4Department of Chemistry, Faculty of Materials Science and Technology, VŠB-Technical University of Ostrava, 17. Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech RepublicFaculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, PolandConn Center for Renewable Energy Research, University of Louisville, Louisville, KY 40292, USAConn Center for Renewable Energy Research, University of Louisville, Louisville, KY 40292, USAInstitute of Fundamental Technological Research, Polish Academy of Sciences, Pawińskiego 5B, 02-106 Warsaw, PolandIn this work, a facile, wet chemical synthesis was utilized to achieve a series of lithium manganese oxide (LiMn<sub>2</sub>O<sub>4</sub>, (LMO) with 1–5%wt. graphene oxide (GO) composites. The average crystallite sizes estimated by the Rietveld method of LMO/GO nanocomposites were in the range of 18–27 nm. The electrochemical performance was studied using CR2013 coin-type cell batteries prepared from pristine LMO material and LMO modified with 5%wt. GO. Synthesized materials were tested as positive electrodes for Li-ion batteries in the voltage range between 3.0 and 4.3 V at room temperature. The specific discharge capacity after 100 cycles for LMO and LMO/5%wt. GO were 84 and 83 mAh g<sup>−1</sup>, respectively. The LMO material modified with 5%wt. of graphene oxide flakes retained more than 91% of its initial specific capacity, as compared with the 86% of pristine LMO material.https://www.mdpi.com/1996-1944/14/15/4134lithium manganese oxideLiMn<sub>2</sub>O<sub>4</sub>graphene oxidecathode materiallithium ion battery |
| spellingShingle | Monika Michalska Dominika A. Buchberger Jacek B. Jasiński Arjun K. Thapa Amrita Jain Surface Modification of Nanocrystalline LiMn<sub>2</sub>O<sub>4</sub> Using Graphene Oxide Flakes Materials lithium manganese oxide LiMn<sub>2</sub>O<sub>4</sub> graphene oxide cathode material lithium ion battery |
| title | Surface Modification of Nanocrystalline LiMn<sub>2</sub>O<sub>4</sub> Using Graphene Oxide Flakes |
| title_full | Surface Modification of Nanocrystalline LiMn<sub>2</sub>O<sub>4</sub> Using Graphene Oxide Flakes |
| title_fullStr | Surface Modification of Nanocrystalline LiMn<sub>2</sub>O<sub>4</sub> Using Graphene Oxide Flakes |
| title_full_unstemmed | Surface Modification of Nanocrystalline LiMn<sub>2</sub>O<sub>4</sub> Using Graphene Oxide Flakes |
| title_short | Surface Modification of Nanocrystalline LiMn<sub>2</sub>O<sub>4</sub> Using Graphene Oxide Flakes |
| title_sort | surface modification of nanocrystalline limn sub 2 sub o sub 4 sub using graphene oxide flakes |
| topic | lithium manganese oxide LiMn<sub>2</sub>O<sub>4</sub> graphene oxide cathode material lithium ion battery |
| url | https://www.mdpi.com/1996-1944/14/15/4134 |
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