Novel palladium-guanine-reduced graphene oxide nanocomposite as efficient electrocatalyst for methanol oxidation reaction
Amides; Electrocatalysts; Electrooxidation; Fuel cells; Graphene; Methanol; Nanocomposites; Nanoparticles; Nucleic acids; Oxidation; Positive ions; RNA; A. Guanine; Electrochemically active surface areas; Methanol electrooxidation; Methanol oxidation reactions; Microwave-assisted methods; Non-covale...
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2023
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my.uniten.dspace-247362023-05-29T15:26:26Z Novel palladium-guanine-reduced graphene oxide nanocomposite as efficient electrocatalyst for methanol oxidation reaction Ng J.C. Tan C.Y. Ong B.H. Matsuda A. Basirun W.J. Tan W.K. Singh R. Yap B.K. 57194408700 16029485400 7102342460 57089738800 35550587900 57216683664 41061958200 26649255900 Amides; Electrocatalysts; Electrooxidation; Fuel cells; Graphene; Methanol; Nanocomposites; Nanoparticles; Nucleic acids; Oxidation; Positive ions; RNA; A. Guanine; Electrochemically active surface areas; Methanol electrooxidation; Methanol oxidation reactions; Microwave-assisted methods; Non-covalent functionalization; Palladium nanoparticles; Reduced graphene oxides; Palladium compounds The agglomeration of metal catalysts can limit the performance of fuel cells. Herein, an easy, scalable, one-pot microwave-assisted method is proposed to introduce guanine, which is a nucleobase found in deoxyribonucleic acid and ribonucleic acid, to the reduced graphene oxide-supported palladium via noncovalent functionalization. Considering the abundant amino, amide, and imino functional groups of guanine that act as anchoring sites, palladium nanoparticles of various shapes such as triangular, rectangular, circular, and diamond are uniformly distributed. The guanine itself is revealed to be catalytically active toward methanol oxidation reaction, serving as second catalyst. Consequently, the as-produced nanocomposite has a larger electrochemically active surface area (111.98 m2 g?1 vs. 63.80 m2 g?1), greater methanol electro-oxidation ability (1017.42 mA mg?1 vs. 359.80 mA mg?1), and higher stability in alkaline medium than its counterpart without guanine. � 2018 Elsevier Ltd Final 2023-05-29T07:26:26Z 2023-05-29T07:26:26Z 2019 Article 10.1016/j.materresbull.2018.12.029 2-s2.0-85059155272 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059155272&doi=10.1016%2fj.materresbull.2018.12.029&partnerID=40&md5=98db033dccbaf773ff76d92948e0d074 https://irepository.uniten.edu.my/handle/123456789/24736 112 213 220 Elsevier Ltd Scopus |
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Amides; Electrocatalysts; Electrooxidation; Fuel cells; Graphene; Methanol; Nanocomposites; Nanoparticles; Nucleic acids; Oxidation; Positive ions; RNA; A. Guanine; Electrochemically active surface areas; Methanol electrooxidation; Methanol oxidation reactions; Microwave-assisted methods; Non-covalent functionalization; Palladium nanoparticles; Reduced graphene oxides; Palladium compounds |
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57194408700 Ng J.C. Tan C.Y. Ong B.H. Matsuda A. Basirun W.J. Tan W.K. Singh R. Yap B.K. |
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Ng J.C. Tan C.Y. Ong B.H. Matsuda A. Basirun W.J. Tan W.K. Singh R. Yap B.K. |
| spellingShingle |
Ng J.C. Tan C.Y. Ong B.H. Matsuda A. Basirun W.J. Tan W.K. Singh R. Yap B.K. Novel palladium-guanine-reduced graphene oxide nanocomposite as efficient electrocatalyst for methanol oxidation reaction |
| author_sort |
Ng J.C. |
| title |
Novel palladium-guanine-reduced graphene oxide nanocomposite as efficient electrocatalyst for methanol oxidation reaction |
| title_short |
Novel palladium-guanine-reduced graphene oxide nanocomposite as efficient electrocatalyst for methanol oxidation reaction |
| title_full |
Novel palladium-guanine-reduced graphene oxide nanocomposite as efficient electrocatalyst for methanol oxidation reaction |
| title_fullStr |
Novel palladium-guanine-reduced graphene oxide nanocomposite as efficient electrocatalyst for methanol oxidation reaction |
| title_full_unstemmed |
Novel palladium-guanine-reduced graphene oxide nanocomposite as efficient electrocatalyst for methanol oxidation reaction |
| title_sort |
novel palladium-guanine-reduced graphene oxide nanocomposite as efficient electrocatalyst for methanol oxidation reaction |
| publisher |
Elsevier Ltd |
| publishDate |
2023 |
| _version_ |
1806427599811903488 |
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13.214268 |