Synthesis and Properties of Nitrogen and Iodine Co-Functionalized Graphene Oxide and Its Electrochemical Applications

Title
Synthesis and Properties of Nitrogen and Iodine Co-Functionalized Graphene Oxide and Its Electrochemical Applications
Authors
이철호강길성이윤기이성호조성무유성종장종현이도창조한익
Keywords
graphene; heteroatom doping; fuel cell; ORR
Issue Date
2016-01
Publisher
Science of Advanced Materials
Citation
VOL 7, 1-6
Abstract
Nitrogen and iodine co-functionalized and reduced graphene (NI-rGO) is easily synthesized using hydrazinebased reductants containing nitrogen and iodine atoms at a relatively low temperature. The reductant, 4-iodophenylhydrazine, can removes numerous oxygen functional groups bonded to graphene oxide and simultaneously functionalize the nitrogen and iodine atoms all over the basal planes and edge sites of the graphene oxide. NI-rGO exhibits superior electrochemical characteristics to those of graphene oxide. The functionalized heteroatoms with high electronegativity on graphene can be attributed to the improvement in activity for oxygen reduction reaction due to the electronic modifications of the graphene structure. The NI-rGO showed stable durability beyond 10,000 cycles.
URI
http://pubs.kist.re.kr/handle/201004/58421
ISSN
19472935
Appears in Collections:
KIST Publication > Article
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