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Enhancement of ethanol electrooxidation on plasmonic Au/TiO2 nanotube arrays |
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| Authors: | Zhihua Xu Jiaguo Yu Gang Liu |
| Institution: | aState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China;bNational Center for Nanoscience and Technology, Beijing 100190, PR China;cCollege of Chemical Engineering, Huanggang Normal University, Huanggang 438000, PR China |
| Abstract: | Novel electrocatalysts Au/TiO2 nanotube arrays (Au/TiO2NTs) were prepared by loading low-content(1.9 at.%) of Au nanoparticles (AuNPs) onto highly ordered TiO2 nanotube arrays (TiO2NTs). Ethanol electrooxidation indicates that visible-light (λ > 400 nm) irradiation can significantly enhance the activity as well as resistpoisoning of Au/TiO2NTs electrocatalysts that are activated by plasmon resonance. Au/TiO2NTs catalysts calcinated at 300 °C display the highest performance due to the strong synergistic interactions between TiO2 and Au NPs. The combination of visible-light irradiation with a controllable potential offers a new strategyfor enhancing the performance of anodes in direct ethanol fuel cell (DEFC). |
| Keywords: | Ethanol electrooxdiation Au nanoparticle Visible light TiO2 nanotube arrays |
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