Direct‐methanol Fuel Cell Based on Functionalized Graphene Oxide with Mono‐metallic and Bi‐metallic Nanoparticles: Electrochemical Performances of Nanomaterials for Methanol Oxidation |
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| Authors: | Mehmet Lütfi Yola Tanju Eren Necip Atar Hasan Saral İsmail Ermiş |
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| Affiliation: | 1. Sinop University, Faculty of Engineering, Department of Metallurgical and Materials Engineering, Sinop, Turkey, Tel.: +90?3682715761;2. Fax: +90?3682715763;3. Pamukkale University, Faculty of Engineering, Department of Chemical Engineering, Denizli, Turkey;4. Sinop University, Faculty of Engineering, Department of Energy Systems Engineering, Sinop, Turkey |
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| Abstract: | The catalysts based on 2‐aminoethanethiol functionalized graphene oxide (AETGO) with several mono‐metallic and bi‐metallic nanoparticles such as rod gold (rAuNPs), rod silver (rAgNPs), rod gold‐platinum (rAu‐Pt NPs) and rod silver‐platinum (rAg‐Pt NPs) were synthesized. The successful synthesis of nanomaterials was confirmed by various methods. The effective surface area (ESA) of the rAu‐Pt NPs/AETGO is 1.44, 1.64 and 2.40 times higher than those of rAg‐Pt NPs/AETGO, rAuNPs/AETGO and rAgNPs/AETGO, respectively, under the same amount of Pt. The rAu‐Pt NPs/AETGO exhibited a higher peak current for methanol oxidation than those of comparable rAg‐Pt NPs/AETGO under the same amount of Pt loading. |
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| Keywords: | Direct‐methanol fuel cell graphene oxide nanoparticle methanol oxidation |
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