期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 63, 期 -, 页码 30-33出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2015.11.010
关键词
Nitrogen-functionalized carbon nanotubes; Oxygen-functionalized carbon nanotubes; Palladium nanoparticles; Ethanol oxidation; Electrocatalyst
资金
- Cluster of Excellence RESOLV - Deutsche Forschungsgemeinschaft [EXC 1069]
Large scale commercialization of direct ethanol fuel cells is hampered by the high cost and scarcity of noble metal electrocatalysts employed at both the anode and cathode. We demonstrate improved utilization of palladium as anode catalyst for ethanol oxidation by exploiting the strong interaction between Pd nanoparticles and nitrogen-doped carbon nanotubes (NCNTs) as support. 0.85 wt% Pd supported on NCNTs achieved a specific current density of 517 A g(Pd)(-1) compared with 421 A g(Pd)(-1) for 0.86 wt% Pd on oxygen-functionalized carbon nanotubes. The electrocatalytic performance deteriorated only gradually and catalysis was sustained for at least 80 h. (C) 2015 Elsevier B.V. All rights reserved.
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