Investigation of Oxygen Reduction Activity of Catalysts Derived from Co and Co/Zn Methyl‐Imidazolate Frameworks in Proton Exchange Membrane Fuel Cells
| Autor: | Lina Chong, Alexander B. Papandrew, Rudiger Schlaf, Thomas A. Zawodzinski, Heather M. Barkholtz, Lauren R. Grabstanowicz, Shengqian Ma, Gabriel A. Goenaga, Radwan Elzein, Kia Williams, Di-Jia Liu, Jeremy A. Brooksbank, Jianxin Zou |
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| Rok vydání: | 2016 |
| Předmět: |
010405 organic chemistry
Inorganic chemistry Membrane electrode assembly chemistry.chemical_element Proton exchange membrane fuel cell 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences chemistry.chemical_compound chemistry Imidazolate Electrochemistry Metal-organic framework Cobalt Bimetallic strip Zeolitic imidazolate framework |
| Zdroj: | ChemElectroChem. 3:1541-1545 |
| ISSN: | 2196-0216 |
| DOI: | 10.1002/celc.201600163 |
| Popis: | We demonstrated that the oxygen reduction reaction (ORR) activity over catalysts derived from pyrolyzed cobalt zeolitic imidazolate frameworks (ZIFs) depends strongly on the imidazole ligand structure and cobalt content. The activity and durability of these catalysts were tested in the proton exchange membrane fuel cell for the first time. The membrane electrode assembly containing a catalyst derived from Co/Zn bimetallic ZIF at the cathode achieved an open-circuit voltage of 0.93 V, a current density of 28 mA cm−2 at 0.8 ViR-free, and a peak power density of 374 mW cm−2. |
| Databáze: | OpenAIRE |
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