High performance supercapattery with rGO/TiO2 nanocomposites anode and activated carbon cathode
Activated carbon; Anodes; Cathodes; Charge transfer; Crystallinity; Electric discharges; Graphene; Hybrid materials; Life cycle; Nanocrystals; Oxide minerals; Supercapacitor; Titanium dioxide; Charge transfer resistance; Charge-discharge cycle; Electrochemical performance; High specific capacity; Hy...
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2023
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my.uniten.dspace-245032023-05-29T15:24:02Z High performance supercapattery with rGO/TiO2 nanocomposites anode and activated carbon cathode Heng I. Low F.W. Lai C.W. Juan J.C. Amin N. Tiong S.K. 57204918003 56513524700 54879860000 56068042700 7102424614 15128307800 Activated carbon; Anodes; Cathodes; Charge transfer; Crystallinity; Electric discharges; Graphene; Hybrid materials; Life cycle; Nanocrystals; Oxide minerals; Supercapacitor; Titanium dioxide; Charge transfer resistance; Charge-discharge cycle; Electrochemical performance; High specific capacity; Hydrothermal methods; Hydrothermal techniques; rGO/TiO2; Supercapattery; Reduced Graphene Oxide A hybrid material of reduced graphene oxide/titanium dioxide (rGO/TiO2)was successfully synthesized by facile hydrothermal technique. A different amount of GO ratios at 5%, 10%, 20%, and 30% were loaded with TiO2. It is a well-known fact that porous structure and crystallinity of resultant rGO/TiO2 play a crucial role in synergistic effect which facilitate electron transfer movement and reduce the volume changes during a charge-discharge cycle process. Based on the results obtained, an optimum of 10 wt % GO loading with TiO2 nanocrystals revealed that electrochemical performance achieved the highest specific capacity of 116.70 mAh/g with 0.2 A g?1 among samples. This result inferred that high efficiency of ion diffusion was obtained with low charge transfer resistance between TiO2 nanocrystals and rGO. The supercapattery was assembled in a configuration of optimized 10% rGO/TiO2 nanocomposites as anode while activated carbon as cathode. The result obtained a superior energy density of 54.37 Wh kg?1 at power density of 420.48 W kg?1. Additionally, the specific capacity still remained at 92% for 3000 charging-discharging cycles under a current density of 1 A g?1; hence, good life cycle stability, high specific capacity and low charge transfer resistance of rGO/TiO2 nanocomposites electrode suggested that the prepared materials was a promising anode material for supercapattery application. � 2019 Elsevier B.V. Final 2023-05-29T07:24:02Z 2023-05-29T07:24:02Z 2019 Article 10.1016/j.jallcom.2019.04.347 2-s2.0-85065389462 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85065389462&doi=10.1016%2fj.jallcom.2019.04.347&partnerID=40&md5=2d3c013130d21f9e39deff37aa38aeb4 https://irepository.uniten.edu.my/handle/123456789/24503 796 13 24 Elsevier Ltd Scopus |
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| description |
Activated carbon; Anodes; Cathodes; Charge transfer; Crystallinity; Electric discharges; Graphene; Hybrid materials; Life cycle; Nanocrystals; Oxide minerals; Supercapacitor; Titanium dioxide; Charge transfer resistance; Charge-discharge cycle; Electrochemical performance; High specific capacity; Hydrothermal methods; Hydrothermal techniques; rGO/TiO2; Supercapattery; Reduced Graphene Oxide |
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57204918003 |
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57204918003 Heng I. Low F.W. Lai C.W. Juan J.C. Amin N. Tiong S.K. |
| format |
Article |
| author |
Heng I. Low F.W. Lai C.W. Juan J.C. Amin N. Tiong S.K. |
| spellingShingle |
Heng I. Low F.W. Lai C.W. Juan J.C. Amin N. Tiong S.K. High performance supercapattery with rGO/TiO2 nanocomposites anode and activated carbon cathode |
| author_sort |
Heng I. |
| title |
High performance supercapattery with rGO/TiO2 nanocomposites anode and activated carbon cathode |
| title_short |
High performance supercapattery with rGO/TiO2 nanocomposites anode and activated carbon cathode |
| title_full |
High performance supercapattery with rGO/TiO2 nanocomposites anode and activated carbon cathode |
| title_fullStr |
High performance supercapattery with rGO/TiO2 nanocomposites anode and activated carbon cathode |
| title_full_unstemmed |
High performance supercapattery with rGO/TiO2 nanocomposites anode and activated carbon cathode |
| title_sort |
high performance supercapattery with rgo/tio2 nanocomposites anode and activated carbon cathode |
| publisher |
Elsevier Ltd |
| publishDate |
2023 |
| _version_ |
1806426658187509760 |
| score |
13.222552 |