Cited 24 time in webofscience Cited 26 time in scopus

A new class of electroactive Fe- and P-functionalized graphene for oxygen reduction

Title
A new class of electroactive Fe- and P-functionalized graphene for oxygen reduction
Authors
Razmjooei, F[Razmjooei, Fatemeh]Singh, KP[Singh, Kiran Pal]Bae, EJ[Bae, Eun Jin]Yu, JS[Yu, Jong-Sung]
DGIST Authors
Razmjooei, F[Razmjooei, Fatemeh]; Singh, KP[Singh, Kiran Pal]; Bae, EJ[Bae, Eun Jin]; Yu, JS[Yu, Jong-Sung]
Issue Date
2015
Citation
Journal of Materials Chemistry A, 3(20), 11031-11039
Type
Article
Article Type
Article
Keywords
CarbonEfficient CatalystsElectro ActivesElectrocatalytic PropertiesElectrolytic ReductionFunctionalized GrapheneGrapheneMetalsOxygenOxygen ReductionOxygen Reduction ReactionPhosphorusReduced-Graphene OxidesSynergistic EffectSynthesis (Chemical)
ISSN
2050-7488
Abstract
While metal and electronegative N-containing carbon has aroused great interest as an efficient catalyst towards the oxygen reduction reaction (ORR), no combination of metal with other heteroatom-containing carbon has received considerable attention. This has motivated us to explore the performance of carbon functionalized with metal and electropositive phosphorous. Herein, we present the first report on the synthesis of a new class of electroactive Fe- and P-functionalized graphene (GPFe) and its electrocatalytic properties in alkaline and acidic media. The introduction of Fe causes remarkable synergistic effects on P-doped reduced graphene oxide by increasing surface area, enhancing the P doping level due to the interaction between Fe and P and generating electrochemically active Fe-P species. N-oxides are known to be in-active for ORR in Fe-N systems, whereas in present Fe-P systems, oxides of Fe and P are found to be beneficial for ORR. Interestingly, after the introduction of Fe, mostly inactive P-doped carbon becomes active in acidic medium. We propose that this study will surely provide renewed insights into active sites for ORR in metal and heteroatom-doped carbon systems. This journal is © The Royal Society of Chemistry 2015.
URI
http://hdl.handle.net/20.500.11750/2626
DOI
10.1039/c5ta00970g
Publisher
Royal Society of Chemistry
Related Researcher
  • Author Yu, Jong Sung Light, Salts and Water Research Group
  • Research Interests Materials chemistry; nanomaterials; electrochemistry; carbon and porous materials; fuel cell; battery; supercapacitor; sensor and photochemical catalyst
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Collection:
ETC1. Journal Articles


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