Enhanced electrocatalytic performance of cobalt oxide nanocubes incorporating reduced graphene oxide as a modified platinum electrode for methanol oxidation
Herein, we report a facile hydrothermal method for the preparation of cobalt oxide nanocubes incorporating reduced graphene oxide (rGO–Co3O4 nanocubes) for electrocatalytic oxidation of methanol. The synthesized rGO–Co3O4 nanocubes were characterized using transmission electron microscopy (TEM), fie...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Royal Society of Chemistry
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/37456/ http://psasir.upm.edu.my/id/eprint/37456/1/Enhanced%20electrocatalytic%20performance%20of%20cobalt%20oxide%20nanocubes%20incorporating%20reduced%20graphene%20oxide%20as%20a%20modified%20platinum%20electrode%20for%20methanol%20oxidation.pdf |
| _version_ | 1848848612298063872 |
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| author | Shahid, Muhammad Mehmood Pandikumar, Alagarsamy Golsheikh, Amir Moradi Huang, Nay Ming Lim, Hong Ngee |
| author_facet | Shahid, Muhammad Mehmood Pandikumar, Alagarsamy Golsheikh, Amir Moradi Huang, Nay Ming Lim, Hong Ngee |
| author_sort | Shahid, Muhammad Mehmood |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Herein, we report a facile hydrothermal method for the preparation of cobalt oxide nanocubes incorporating reduced graphene oxide (rGO–Co3O4 nanocubes) for electrocatalytic oxidation of methanol. The synthesized rGO–Co3O4 nanocubes were characterized using transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and Raman techniques. The electrochemical behavior of an rGO–Co3O4 nanocube modified electrode was studied using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) techniques. The electrocatalytic performances of rGO–Co3O4 nanocube-modified electrodes with different wt% of GO were investigated in relation to methanol oxidation in an alkaline medium. The rGO–Co3O4 nanocube modified electrode showed enhanced current density due to oxidation of methanol when compared to the bare Pt, rGO, and Co3O4 nanocube modified electrodes. The optimal GO content for an rGO–Co3O4 nanocube-modified electrode to achieve a high electrocatalytic oxidation of methanol was 2 wt%, and it showed an anodic peak current density of 362 μA cm−2. |
| first_indexed | 2025-11-15T09:37:16Z |
| format | Article |
| id | upm-37456 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:37:16Z |
| publishDate | 2014 |
| publisher | Royal Society of Chemistry |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-374562016-01-27T01:31:57Z http://psasir.upm.edu.my/id/eprint/37456/ Enhanced electrocatalytic performance of cobalt oxide nanocubes incorporating reduced graphene oxide as a modified platinum electrode for methanol oxidation Shahid, Muhammad Mehmood Pandikumar, Alagarsamy Golsheikh, Amir Moradi Huang, Nay Ming Lim, Hong Ngee Herein, we report a facile hydrothermal method for the preparation of cobalt oxide nanocubes incorporating reduced graphene oxide (rGO–Co3O4 nanocubes) for electrocatalytic oxidation of methanol. The synthesized rGO–Co3O4 nanocubes were characterized using transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and Raman techniques. The electrochemical behavior of an rGO–Co3O4 nanocube modified electrode was studied using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) techniques. The electrocatalytic performances of rGO–Co3O4 nanocube-modified electrodes with different wt% of GO were investigated in relation to methanol oxidation in an alkaline medium. The rGO–Co3O4 nanocube modified electrode showed enhanced current density due to oxidation of methanol when compared to the bare Pt, rGO, and Co3O4 nanocube modified electrodes. The optimal GO content for an rGO–Co3O4 nanocube-modified electrode to achieve a high electrocatalytic oxidation of methanol was 2 wt%, and it showed an anodic peak current density of 362 μA cm−2. Royal Society of Chemistry 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/37456/1/Enhanced%20electrocatalytic%20performance%20of%20cobalt%20oxide%20nanocubes%20incorporating%20reduced%20graphene%20oxide%20as%20a%20modified%20platinum%20electrode%20for%20methanol%20oxidation.pdf Shahid, Muhammad Mehmood and Pandikumar, Alagarsamy and Golsheikh, Amir Moradi and Huang, Nay Ming and Lim, Hong Ngee (2014) Enhanced electrocatalytic performance of cobalt oxide nanocubes incorporating reduced graphene oxide as a modified platinum electrode for methanol oxidation. RSC Advances, 4 (107). pp. 62793-62801. ISSN 2046-2069 http://pubs.rsc.org/en/Content/ArticleLanding/2014/RA/c4ra08952a#!divAbstract 10.1039/c4ra08952a |
| spellingShingle | Shahid, Muhammad Mehmood Pandikumar, Alagarsamy Golsheikh, Amir Moradi Huang, Nay Ming Lim, Hong Ngee Enhanced electrocatalytic performance of cobalt oxide nanocubes incorporating reduced graphene oxide as a modified platinum electrode for methanol oxidation |
| title | Enhanced electrocatalytic performance of cobalt oxide nanocubes incorporating reduced graphene oxide as a modified platinum electrode for methanol oxidation |
| title_full | Enhanced electrocatalytic performance of cobalt oxide nanocubes incorporating reduced graphene oxide as a modified platinum electrode for methanol oxidation |
| title_fullStr | Enhanced electrocatalytic performance of cobalt oxide nanocubes incorporating reduced graphene oxide as a modified platinum electrode for methanol oxidation |
| title_full_unstemmed | Enhanced electrocatalytic performance of cobalt oxide nanocubes incorporating reduced graphene oxide as a modified platinum electrode for methanol oxidation |
| title_short | Enhanced electrocatalytic performance of cobalt oxide nanocubes incorporating reduced graphene oxide as a modified platinum electrode for methanol oxidation |
| title_sort | enhanced electrocatalytic performance of cobalt oxide nanocubes incorporating reduced graphene oxide as a modified platinum electrode for methanol oxidation |
| url | http://psasir.upm.edu.my/id/eprint/37456/ http://psasir.upm.edu.my/id/eprint/37456/ http://psasir.upm.edu.my/id/eprint/37456/ http://psasir.upm.edu.my/id/eprint/37456/1/Enhanced%20electrocatalytic%20performance%20of%20cobalt%20oxide%20nanocubes%20incorporating%20reduced%20graphene%20oxide%20as%20a%20modified%20platinum%20electrode%20for%20methanol%20oxidation.pdf |