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New Electro-Fenton Gas Diffusion Cathode based on Nitrogen-doped Graphene@Carbon Nanotube Composite Materials
dc.creator | Liu T., Wang K., Song S., Brouzgou A., Tsiakaras P., Wang Y. | en |
dc.date.accessioned | 2023-01-31T08:55:18Z | |
dc.date.available | 2023-01-31T08:55:18Z | |
dc.date.issued | 2016 | |
dc.identifier | 10.1016/j.electacta.2015.12.185 | |
dc.identifier.issn | 00134686 | |
dc.identifier.uri | http://hdl.handle.net/11615/75964 | |
dc.description.abstract | For the development of a highly active and energy-effective electro-Fenton process, a novel nitrogen-doped graphene@carbon nanotube composite material (N-G@CNT) is prepared, characterized, investigated for the oxygen reduction reaction (ORR), and employed for dimethyl phthalate (DMP) degradation in aqueous solution. It is found that N-G@CNT's ORR activity towards H2O2 production is significantly improved in terms of increased current density and more positive onset potential. Moreover, -0.2 V (vs. SCE) is the lowest cathodic potential, to our best knowledge, in which DMP degrades over N-G@CNT GDE (Gas Diffusion Electrode) more effectively than over: i) graphite GDE or ii) graphene GDE or iii) CNT GDE. The apparent rate constant of DMP degradation is found to be 0.0322 min-1, about 14, 19, and 54 times higher than those measured on the above three types of GDEs, respectively. It is also found that, at the lower potential (-0.2 V), the energy consumption (EC) for the half-life time degradation of DMP over the studied GDEs, is as follows (in J mg-1): N-G@CNT = 2.56 < graphite = 10.61 < graphene = 12.23 < CNT = 38.35. The lower onset potential could be attributed to both the bridge between graphene and CNT and the nitrogen doping. The as-prepared N-G@CNT exhibits high activity and desirable stability, and represents a potential candidate material as electro-Fenton cathode for energy-effective wastewater treatment. © 2016 Elsevier Ltd. All rights reserved. | en |
dc.language.iso | en | en |
dc.source | Electrochimica Acta | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84958961068&doi=10.1016%2fj.electacta.2015.12.185&partnerID=40&md5=f5d7147664e5d3c901e9ee3c3bbb05d2 | |
dc.subject | Cathodes | en |
dc.subject | Composite materials | en |
dc.subject | Diffusion in gases | en |
dc.subject | Doping (additives) | en |
dc.subject | Electrodes | en |
dc.subject | Electrolytic reduction | en |
dc.subject | Energy utilization | en |
dc.subject | Esters | en |
dc.subject | Graphene | en |
dc.subject | Graphite | en |
dc.subject | Nanotubes | en |
dc.subject | Nitrogen | en |
dc.subject | Oxidation | en |
dc.subject | Rate constants | en |
dc.subject | Solutions | en |
dc.subject | Wastewater treatment | en |
dc.subject | Yarn | en |
dc.subject | Carbon-nanotube composites | en |
dc.subject | Dimethyl phthalate | en |
dc.subject | Electro-fenton | en |
dc.subject | Gas diffusion electrodes | en |
dc.subject | H2O2 accumulation | en |
dc.subject | Nitrogen doped graphene | en |
dc.subject | Nitrogen-doping | en |
dc.subject | Oxygen reduction reaction | en |
dc.subject | Carbon nanotubes | en |
dc.subject | Elsevier Ltd | en |
dc.title | New Electro-Fenton Gas Diffusion Cathode based on Nitrogen-doped Graphene@Carbon Nanotube Composite Materials | en |
dc.type | journalArticle | en |
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