All Issue

2018 Vol.28, Issue 11 Preview Page
Synthesis of Fe3C-Embedded Nitrogen Doped Carbon for Oxygen Reduction Reaction

산소환원반응을 위한 탄화철이 내재된 질소 도핑된 탄소의 제조

Young-Geun Lee1
,
Geon-Hyoung An2
,
Hyo-Jin Ahn12†
이 영근1
,
안 건형2
,
안 효진12†
1Department of Materials Science and Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea
2Program of Materials Science & Engineering, Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea
1서울과학기술대학교 신소재공학과
2서울과학기술대학교 의공학-바이오소재 융합 협동과정 신소재공학프로그램
†Corresponding author E-Mail : hjahn@seoultech.ac.kr (H.-J. Ahn, Seoul Nat’l Univ. of Sci. and Tech.)
November 2018. pp. 640-645
PDF XML Citation
Abstract

The design of non-precious electrocatalysts with low-cost, good stability, and an improved oxygen reduction reaction(ORR) to replace the platinium-based electrocatalyst is significant for application of fuel cells and metal-air batteries with high energy density. In this study, we synthesize iron-carbide(Fe3C) embedded nitrogen(N) doped carbon nanofiber(CNF) as electrocatalysts for ORRs using electrospinning, precursor deposition, and carbonization. To optimize electrochemical performance, we study the three stages according to different amounts of iron precursor. Among them, Fe3C-embedded N doped CNF-1 exhibits the most improved electrochemical performance with a high onset potential of −0.18 V, a high E1/2 of −0.29 V, and a nearly four-electron pathway (n = 3.77). In addition, Fe3C-embedded N doped CNF-1 displays exellent long-term stabillity with the lowest ΔE1/2= 8 mV compared to the other electrocatalysts. The improved electrochemical properties are attributed to synergestic effect of N-doping and well-dispersed iron carbide embedded in CNF. Consequently, Fe3C-embedded N doped CNF is a promising candidate for non-precious electrocatalysts for high-performance ORRs.

Keywords
oxygen reduction reaction
carbon nanofiber
nitrogen doping
iron carbide
References
1.
J. Greeley , I. E. L. Stephens, A. S. Bondarenko, T. P. Johansson, H. A. Hansen, T. F. Jaramillo, J. Rossmeisl, I. Chorkendorff and J. K. Norskov, Nat. Chem., 1, 552 (2009). 10.1038/nchem.36721378936
2.
G. A. Ferrero , K. Preuss, A. Marinovic, A. B. Jorge, N. Mansor, D. J. L. Brett, A. B. Fuertes, M. Sevilla and M.- M. Titirici, ACS Nano, 10, 5922 (2016). 10.1021/acsnano.6b0124727214056
3.
M. Li , L. Zhang, Q. Xu, J. Niu and Z. Xia, J. Catal., 314, 66 (2014). 10.1016/j.jcat.2014.03.011
4.
Z. Zhao , M. Li, L. Zhang, L. Dai and Z. Xia, Adv. Mater., 27, 6834 (2015). 10.1002/adma.20150321126418520
5.
D. Y. Sin , G. H. An and H. J. Ahn, J. Nanosci. Nanotechnol., 16, 10535 (2016). 10.1166/jnn.2016.13190
6.
H. L. An , G. H. Ahn and H. J. Ahn, J. Mater. Res., 26, 250 (2016).
7.
G. H. An , E. H. Lee and H. J. Ahn, J. Korean Powder Metall. Inst., 23, 420 (2016).
8.
G. H. An , D. Y. Lee and H. J. Ahn, ACS Appl. Mater. Interfaces, 9, 12478 (2017). 10.1021/acsami.7b0128628323407
9.
Y. G. Lee , G. H. An and H. J. Ahn, Korean J. Mater. Res., 27, 192 (2017).
10.
L. Shang , H. Yu, X. Huang, T. Bian, R. Shi, Y. Zhao, G. I. N. Waterhouse, L.-Z. Wu, C.-H. Tung and T. Zhang, Adv. Mater., 28, 1668 (2016). 10.1002/adma.20150504526677131
11.
D.-H Kwak , S.-B. Han, Y.-W. Lee, H.-S. Park, I.-A. Choi, M.-C. Kim, S.-J. Kim, D.-H. Kim, J.-I. Son and K.-W. Park, Appl. Catal., B, 203, 889 (2017). 10.1016/j.apcatb.2016.10.084
12.
G. H. An , E. H. Lee and H. J. Ahn, J. Alloys Compd., 682, 746 (2016). 10.1016/j.jallcom.2016.05.033
13.
G. Panomsuwan , N. Saito and T. Ishizaki, J. Mater. Chem. A, 3, 9972 (2015). 10.1039/C5TA00244C
14.
S. Lee , D.-H Kwak, S.-B. Han, Y.-W. Lee, J.-Y. Lee, I.- A. Choi, H.-S. Park, J.-Y. Park and K.-W. Park, ACS Catal., 6, 5095 (2016). 10.1021/acscatal.5b02721
15.
G. Ren , X. Lu, Y. Li, Y. Zhu, L. Dai and L. Jiang, ACS Appl. Mater. Interfaces, 8, 4118 (2016). 10.1021/acsami.5b1178626808226
16.
G.-H. An , Y.-G. Lee and H.-J. Ahn, J. Alloys Compd., 746, 177 (2018). 10.1016/j.jallcom.2018.02.281
17.
Y.-G. Lee , G.-H. Ahn and H.-J. Ahn, Korean J. Mater. Res., 28, 182 (2018).
18.
G. H. An , D. Y. Lee, Y. J. Lee and H. J. Ahn, ACS Appl. Mater. Interfaces, 8, 30264 (2016). 10.1021/acsami.6b1086827759368
19.
S. Chen , J. Bi, Y. Zhao, L. Yang, C. Zhang, Y. Ma, Q. Wu, X. Wang and Z. Hu, Adv. Mater., 24, 5593 (2012). 10.1002/adma.20120242422899547
20.
L. Zhang and Z. Xia, J. Phys. Chem. C, 115, 11170 (2011). 10.1021/jp201991j
21.
D. Shin , B. Jeong, B. S. Mun, H. Jeon, H.-J. Shin, J. Baik and J. Lee, J. Phys. Chem. C, 117, 11619 (2013). 10.1021/jp401186a
Information
  • Publisher :Materials Research Society of Korea
  • Publisher(Ko) :한국재료학회
  • Journal Title :Korean Journal of Materials Research
  • Journal Title(Ko) :한국재료학회지
  • Volume : 28
  • No :11
  • Pages :640-645
  • Received Date : 2018-09-06
  • Revised Date : 2018-09-20
  • Accepted Date : 2018-10-08
  • DOI :https://doi.org/10.3740/MRSK.2018.28.11.640
Journal Informaiton Korean Journal of Materials Research Korean Journal of Materials Research
Online Submission
  • scopus
  • NRF
  • KOFST
  • crossref crossmark
  • crossref cited-by
  • crosscheck
  • open access
  • ccl
Journal Informaiton Journal Informaiton - close