| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터) |
| 권호 |
38권 1호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Edge-halogenated graphene nanoplatelets as electrocatalysts for the oxygen reduction reaction |
| 초록 |
Edge-selective halogenations to graphene nanoplatelets (EHGnPs) were prepared by ball-milling graphite in the presence of chlorine, bromine or iodine, respectively, to produce chlorinated (ClGnP), brominated (BrGnP), and iodinated (IGnP) GnPs. The structures of EHGnPs were confirmed by using various analytical techniques and they have high BET surface areas of 471, 579 and 662 m2/g in that order, indicating that significant delamination has occurred during the ball-milling and workup procedures. The EHGnPs are well dispersible in various solvents for good processability in practice. The EHGnPs displayed remarkable electrocatalytic activity toward oxygen reduction reaction (ORR) with high selectivity, tolerance to methanol crossover/CO poisoning effects, and long-term cycle stability. |
| 저자 |
전인엽1, 최현정1, 최민1, 서정민1, 정선민1, 김민정1, Sheng Zhang2, Lipeng Zhang2, Zhenhai Xia2, Liming Dai2, Noejung Park1, 백종범1
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| 소속 |
1울산과학기술대, 2Case Western Reserve Univ. |
| 키워드 |
graphene; catalyst; oxygen reduction reaction; metal free
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| E-Mail |
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