Fast synthesis of α-MoO3 nanorods with controlled aspect ratios and their enhanced lithium storage capabilities
Uniform α-MoO3 nanorods are synthesized with controlled aspect ratios through a fast hydrothermal route. The control over the aspect ratio of these as-prepared nanorods is realized by applying different reaction times of 2−20 h. Specifically, the nanorods prepared with a reaction time of 2 h are, on...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2012
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/95706 http://hdl.handle.net/10220/8316 |
| _version_ | 1826114320471162880 |
|---|---|
| author | Chen, Jun Song Cheah, Yan Ling Madhavi, Srinivasan Lou, David Xiong Wen |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Chen, Jun Song Cheah, Yan Ling Madhavi, Srinivasan Lou, David Xiong Wen |
| author_sort | Chen, Jun Song |
| collection | NTU |
| description | Uniform α-MoO3 nanorods are synthesized with controlled aspect ratios through a fast hydrothermal route. The control over the aspect ratio of these as-prepared nanorods is realized by applying different reaction times of 2−20 h. Specifically, the nanorods prepared with a reaction time of 2 h are, on average, much shorter in length and slightly smaller in width compared with those obtained with a longer reaction time of 20 h. The products are thoroughly characterized by FESEM/TEM/XRD/BET techniques. The electrochemical properties of the samples are analyzed using cyclic voltammetry and charge−discharge cycling. These studies reveal that the as-prepared nanorods with a smaller aspect ratio exhibit a higher initial discharge capacity, a lower irreversible loss, and better rate behavior at different charge−discharge rates. When compared to α-MoO3 submicrometer particles prepared through direct thermal decomposition, these as-prepared nanorods show much better lihtium storage properties, demonstrating that enhanced physical and/or chemical properties can be obained from proper nanostructuring of the material. |
| first_indexed | 2024-10-01T03:37:14Z |
| format | Journal Article |
| id | ntu-10356/95706 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:37:14Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | ntu-10356/957062020-03-07T11:35:35Z Fast synthesis of α-MoO3 nanorods with controlled aspect ratios and their enhanced lithium storage capabilities Chen, Jun Song Cheah, Yan Ling Madhavi, Srinivasan Lou, David Xiong Wen School of Chemical and Biomedical Engineering DRNTU::Engineering::Materials Uniform α-MoO3 nanorods are synthesized with controlled aspect ratios through a fast hydrothermal route. The control over the aspect ratio of these as-prepared nanorods is realized by applying different reaction times of 2−20 h. Specifically, the nanorods prepared with a reaction time of 2 h are, on average, much shorter in length and slightly smaller in width compared with those obtained with a longer reaction time of 20 h. The products are thoroughly characterized by FESEM/TEM/XRD/BET techniques. The electrochemical properties of the samples are analyzed using cyclic voltammetry and charge−discharge cycling. These studies reveal that the as-prepared nanorods with a smaller aspect ratio exhibit a higher initial discharge capacity, a lower irreversible loss, and better rate behavior at different charge−discharge rates. When compared to α-MoO3 submicrometer particles prepared through direct thermal decomposition, these as-prepared nanorods show much better lihtium storage properties, demonstrating that enhanced physical and/or chemical properties can be obained from proper nanostructuring of the material. 2012-07-12T05:53:26Z 2019-12-06T19:20:09Z 2012-07-12T05:53:26Z 2019-12-06T19:20:09Z 2010 2010 Journal Article Chen, J. S., Cheah, Y. L., Madhavi, S., & Lou, D. X. W. (2010). Fast Synthesis of α-MoO3 Nanorods with Controlled Aspect Ratios and Their Enhanced Lithium Storage Capabilities. The Journal of Physical Chemistry C, 114(18), 8675-8678. https://hdl.handle.net/10356/95706 http://hdl.handle.net/10220/8316 10.1021/jp1017482 en The journal of physical chemistry C © 2010 American Chemical Society. |
| spellingShingle | DRNTU::Engineering::Materials Chen, Jun Song Cheah, Yan Ling Madhavi, Srinivasan Lou, David Xiong Wen Fast synthesis of α-MoO3 nanorods with controlled aspect ratios and their enhanced lithium storage capabilities |
| title | Fast synthesis of α-MoO3 nanorods with controlled aspect ratios and their enhanced lithium storage capabilities |
| title_full | Fast synthesis of α-MoO3 nanorods with controlled aspect ratios and their enhanced lithium storage capabilities |
| title_fullStr | Fast synthesis of α-MoO3 nanorods with controlled aspect ratios and their enhanced lithium storage capabilities |
| title_full_unstemmed | Fast synthesis of α-MoO3 nanorods with controlled aspect ratios and their enhanced lithium storage capabilities |
| title_short | Fast synthesis of α-MoO3 nanorods with controlled aspect ratios and their enhanced lithium storage capabilities |
| title_sort | fast synthesis of α moo3 nanorods with controlled aspect ratios and their enhanced lithium storage capabilities |
| topic | DRNTU::Engineering::Materials |
| url | https://hdl.handle.net/10356/95706 http://hdl.handle.net/10220/8316 |
| work_keys_str_mv | AT chenjunsong fastsynthesisofamoo3nanorodswithcontrolledaspectratiosandtheirenhancedlithiumstoragecapabilities AT cheahyanling fastsynthesisofamoo3nanorodswithcontrolledaspectratiosandtheirenhancedlithiumstoragecapabilities AT madhavisrinivasan fastsynthesisofamoo3nanorodswithcontrolledaspectratiosandtheirenhancedlithiumstoragecapabilities AT loudavidxiongwen fastsynthesisofamoo3nanorodswithcontrolledaspectratiosandtheirenhancedlithiumstoragecapabilities |