Nitrogen and boron co-doped hollow carbon catalyst for the oxygen reduction reaction

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Title
Nitrogen and boron co-doped hollow carbon catalyst for the oxygen reduction reaction
Author(s)
Han J.-S.; Dong Young Chung; Ha D.-G.; Kim J.-H.; Choi K.; Yung-Eun Sung; Kang S.-H.
Publication Date
2016-08
Journal
CARBON, v.105, no., pp.1 - 7
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Abstract
Hollow particles of N,B co-doped carbon were synthesized at different temperatures and used as electrocatalysts for the oxygen reduction reaction (ORR). The particles were synthesized by chlorinating Ti(C0.3N0.7) and TiB2 powders, with the sample formed at 800 °C showing the highest ORR activity, which was comparable to a commercial Pt/C catalyst. The catalyst electron transfer number of 3.94 was close to 4, indicating high selectivity for the ORR. The excellent ORR performance arose from the particle structure that facilitated mass transport, including the hollow shape with well-developed micro and macro pores, and various active nitrogen functional groups on the surface. Boron also played an important role along with the nitrogen, improving the activity for the ORR through a synergistic effect. These properties make these materials promising for the ORR and other electrochemical applications. © 2016 Elsevier Ltd All rights reserved
URI
https://pr.ibs.re.kr/handle/8788114/3134
ISSN
0008-6223
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
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