| DOI | Resolve DOI: https://doi.org/10.1016/j.carbon.2014.04.092 |
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| Author | Search for: Monteverde Videla, Alessandro H. A.; Search for: Ban, Shuai1; Search for: Specchia, Stefania; Search for: Zhang, Lei1ORCID identifier: https://orcid.org/0000-0002-1823-2948; Search for: Zhang, Jiujun1 |
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| Affiliation | - National Research Council of Canada. Energy, Mining and Environment
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| Format | Text, Article |
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| Subject | Electrolytic reduction; Glass membrane electrodes; Graphene; Atomic concentration; Catalyst preparation; Catalyst surfaces; Electron transfer; Glassy carbon electrodes; Oxygen reduction reaction; Reduced graphene oxides; Reduced graphene oxides (RGO); Electrocatalysts |
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| Abstract | In this paper, the reduced graphene oxide (rGO) is synthesized from graphite oxide (GO) via microwave exfoliation method, and used to support non-noble metal Fe-NX based electrocatalysts (Fe-NX/rGO) for the oxygen reduction reaction (ORR). Tripyridyl triazine (TPTZ) is used as a ligand for Fe-NX catalyst preparation. The obtained catalyst presents a high content of pyridinic (N1) and pyrrolic (N2) nitrogen types on the catalyst surface (40.0% and 52.3% atomic concentrations, respectively) with Fe atomic content of 0.7%. A catalyst loading of 0.5 mg cm- 2 with a ionomer-to-carbon (ITC) mass ratio of 0.2 deposited on the glassy carbon electrode allows the highest ORR activity with the specific current of -0.35 mA mg-1 at a cell voltage of 0.8 V (vs. RHE). The overall electron transfer number obtained is of 3.98. Stability tests in acidic solution for this catalyst are also performed. |
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| Publication date | 2014-09 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21272787 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 544c84a1-af09-4b3a-bafd-31f1792b1ef0 |
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| Record created | 2014-12-03 |
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| Record modified | 2021-08-13 |
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