Pseudocapacitive performance of phenothiazine functionalized graphene aerogel
This study utilizes light adsorbing molecule, phenothiazine (PTZ) to reduce graphene oxide (GO) and functionalize into PTZ-rGO aerogel (PTZ-rGO). The UV excited PTZ reduces GO via electron transfer while PTZ is simultaneously oxidized and functionalized onto rGO to produce PTZ-rGO aerogel. The optim...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Elsevier B.V.
2023
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/40731/ http://umpir.ump.edu.my/id/eprint/40731/1/Pseudocapacitive%20performance%20of%20phenothiazine%20functionalized.pdf http://umpir.ump.edu.my/id/eprint/40731/2/Pseudocapacitive%20performance%20of%20phenothiazine%20functionalized_ABS.pdf |
| _version_ | 1848826130565431296 |
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| author | Lee, Soon Poh Ali, Gomaa A.M. Assiri, Mohammed Ali Kong, Kien Voon Teo, Ellie Yi Lih Chong, Kwok Feng |
| author_facet | Lee, Soon Poh Ali, Gomaa A.M. Assiri, Mohammed Ali Kong, Kien Voon Teo, Ellie Yi Lih Chong, Kwok Feng |
| author_sort | Lee, Soon Poh |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | This study utilizes light adsorbing molecule, phenothiazine (PTZ) to reduce graphene oxide (GO) and functionalize into PTZ-rGO aerogel (PTZ-rGO). The UV excited PTZ reduces GO via electron transfer while PTZ is simultaneously oxidized and functionalized onto rGO to produce PTZ-rGO aerogel. The optimum incorporation of PTZ on rGO sheets renders good electrochemical active surface area of 495.71 m2 g−1 and enhances the diffusion behavior up to 41.92%. This pseudocapacitive effect and the excellent surface property provide promising charge storage results of 235.5 F g−1 at 0.5 A g−1. Furthermore, the stable charge-discharge cycles with 92% capacitance retention after 10,000 cycles render it an excellent electrode material for supercapacitor fabrication. |
| first_indexed | 2025-11-15T03:39:56Z |
| format | Article |
| id | ump-40731 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T03:39:56Z |
| publishDate | 2023 |
| publisher | Elsevier B.V. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-407312024-05-28T07:54:49Z http://umpir.ump.edu.my/id/eprint/40731/ Pseudocapacitive performance of phenothiazine functionalized graphene aerogel Lee, Soon Poh Ali, Gomaa A.M. Assiri, Mohammed Ali Kong, Kien Voon Teo, Ellie Yi Lih Chong, Kwok Feng HD Industries. Land use. Labor Q Science (General) T Technology (General) This study utilizes light adsorbing molecule, phenothiazine (PTZ) to reduce graphene oxide (GO) and functionalize into PTZ-rGO aerogel (PTZ-rGO). The UV excited PTZ reduces GO via electron transfer while PTZ is simultaneously oxidized and functionalized onto rGO to produce PTZ-rGO aerogel. The optimum incorporation of PTZ on rGO sheets renders good electrochemical active surface area of 495.71 m2 g−1 and enhances the diffusion behavior up to 41.92%. This pseudocapacitive effect and the excellent surface property provide promising charge storage results of 235.5 F g−1 at 0.5 A g−1. Furthermore, the stable charge-discharge cycles with 92% capacitance retention after 10,000 cycles render it an excellent electrode material for supercapacitor fabrication. Elsevier B.V. 2023-03-15 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/40731/1/Pseudocapacitive%20performance%20of%20phenothiazine%20functionalized.pdf pdf en http://umpir.ump.edu.my/id/eprint/40731/2/Pseudocapacitive%20performance%20of%20phenothiazine%20functionalized_ABS.pdf Lee, Soon Poh and Ali, Gomaa A.M. and Assiri, Mohammed Ali and Kong, Kien Voon and Teo, Ellie Yi Lih and Chong, Kwok Feng (2023) Pseudocapacitive performance of phenothiazine functionalized graphene aerogel. Applied Surface Science, 613 (156069). pp. 1-11. ISSN 0169-4332. (Published) https://doi.org/10.1016/j.apsusc.2022.156069 https://doi.org/10.1016/j.apsusc.2022.156069 |
| spellingShingle | HD Industries. Land use. Labor Q Science (General) T Technology (General) Lee, Soon Poh Ali, Gomaa A.M. Assiri, Mohammed Ali Kong, Kien Voon Teo, Ellie Yi Lih Chong, Kwok Feng Pseudocapacitive performance of phenothiazine functionalized graphene aerogel |
| title | Pseudocapacitive performance of phenothiazine functionalized graphene aerogel |
| title_full | Pseudocapacitive performance of phenothiazine functionalized graphene aerogel |
| title_fullStr | Pseudocapacitive performance of phenothiazine functionalized graphene aerogel |
| title_full_unstemmed | Pseudocapacitive performance of phenothiazine functionalized graphene aerogel |
| title_short | Pseudocapacitive performance of phenothiazine functionalized graphene aerogel |
| title_sort | pseudocapacitive performance of phenothiazine functionalized graphene aerogel |
| topic | HD Industries. Land use. Labor Q Science (General) T Technology (General) |
| url | http://umpir.ump.edu.my/id/eprint/40731/ http://umpir.ump.edu.my/id/eprint/40731/ http://umpir.ump.edu.my/id/eprint/40731/ http://umpir.ump.edu.my/id/eprint/40731/1/Pseudocapacitive%20performance%20of%20phenothiazine%20functionalized.pdf http://umpir.ump.edu.my/id/eprint/40731/2/Pseudocapacitive%20performance%20of%20phenothiazine%20functionalized_ABS.pdf |