The effect of oxygen and nitrogen functional groups on the electrochemical performance of ordered carbon
Ordered carbon (OC) has been synthesised via replication strategy by using Santa Barbara Amorphous (SBA)-15 as a template. The successful replication process has been proven by nitrogen adsorption-desorption analyzer and transmission electron microscopy (TEM). The OC showed well-aligned mesopore sys...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit Universiti Teknologi Malaysia
2019
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/27316/1/The%20effect%20of%20oxygen%20and%20nitrogen%20functional%20groups.pdf http://umpir.ump.edu.my/id/eprint/27316/ https://doi.org/10.11113/jt.v81.12827 https://doi.org/10.11113/jt.v81.12827 |
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| Summary: | Ordered carbon (OC) has been synthesised via replication strategy by using Santa Barbara Amorphous (SBA)-15 as a template. The successful replication process has been proven by nitrogen adsorption-desorption analyzer and transmission electron microscopy (TEM). The OC showed well-aligned mesopore system, similar to the SBA-15 template. The oxygen and nitrogen functional groups introduced were identified by X-ray photoelectron spectroscopy (XPS). Electrochemical performance of the oxygen containing OC (OC-O), nitrogen containing OC (OC-N), and oxygen nitrogen containing OC (OC-ON) was then evaluated by cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD) using a three electrode system in 1M KOH aqueous electrolyte. The OC-O, OC-N, and OC-ON showed significant increment in specific capacitance, CS and exhibited good capacitance retention (CR, %) over high scan rate and current density. |
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