Carbon Nanotube/Platinum (Pt) Sheet as an Improved Cathode for Microbial Fuel Cells
| Autor: | Radisav D. Vidic, Mikhail E. Kozlov, David V.P. Sanchez, Phuong Huynh, Ray H. Baughman, Minhee Yun |
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| Rok vydání: | 2010 |
| Předmět: |
Working electrode
Materials science Scanning electron microscope General Chemical Engineering Analytical chemistry Energy Engineering and Power Technology chemistry.chemical_element Carbon nanotube Platinum nanoparticles Cathode law.invention Fuel Technology Chemical engineering chemistry law Electrode Cyclic voltammetry Platinum |
| Zdroj: | Energy & Fuels. 24:5897-5902 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/ef100825h |
| Popis: | We report a characterization and evaluation of a single-wall carbon nanotube (SWNT) sheet electrode with infused platinum nanoparticles (nPts) as a cathode in a microbial fuel cell. The design is intended to increase electrode efficiency by increasing the surface/volume ratio and the available surface area of a platinum catalyst. The electrode fabrication procedure is an extension of the conventional bucky-paper-like fabrication technique to a two-component system and incorporates nPts throughout the thickness of the sample. The electrodes were characterized via scanning electron microscopy (SEM), Raman spectroscopy, transmission electron microscopy (TEM), and cyclic voltammetry (CV). Our characterizations confirmed the architecture of the electrodes, and the current density from our microbial fuel cell (MFC) increased significantly, approximately an order of magnitude, when an e-beam-evaporated platinum cathode was replaced with this SWNT/nPt sheet electrode. The enhancement of catalytic activity can be ... |
| Databáze: | OpenAIRE |
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