Facile Fabrication of Nitrogen, Phosphorus and Silicon Co-Doped Porous Carbon as an Efficient Oxygen Reduction Catalyst for Primary Zn-Air Battery

Renxing Huang; Ying Lei; Dandan Zhang; Huaming Xie; Xingyong Liu; Honghui Wang

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자료유형: 학술저널

저자정보: Renxing Huang (Sichuan University of Science & Engineering) Ying Lei (Sichuan University of Science & Engineering) Dandan Zhang (Sichuan University of Science & Engineering) Huaming Xie (Sichuan University of Science & Engineering) Xingyong Liu (Sichuan University of Science & Engineering) Honghui Wang (Sichuan University of Science & Engineering)

저널정보: 성균관대학교 성균나노과학기술원 NANO NANO Vol.14 No.9

발행연도: 2019.1

수록면: 1 - 16 (16page)

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It is highly pleasurable but challenging to develop economical and efficient catalysts for accelerating the oxygen reduction reaction (ORR) endowed with sluggish kinetics involved in renewable energy conversion and storage systems such as Zn-air batteries. Herein, N, P and Si tri-doped porous carbon (SiN-PA900) catalysts was prepared by a simple one-step pyrolysis strategy using the mixture of the ionic liquid formed by phytic acid (PA) and N-methylimidazole and tetraethyl orthosilicate (TEOS) as N, P, Si and carbon sources, and the PA as pore-foaming agent. The resulting SiN-PA900 shows favorable catalytic activity toward ORR with an onset potential of 0.94 V versus RHE, half-wave potential of 0.81 V versus RHE, robust stability and excellent tolerance for methanol in alkaline medium, which are comparable to those of the commercial 20% Pt/C. More impressively, the assembled primary Zn-air battery employing the SiN-PA900 as cathode catalysts can achieve a peak power density of 181.4 mW/cm2. Those encouraging properties could be attributed to a synergistic effect of the doped N, P and Si atoms in the carbon matrix, good surface wettability, high surface areas and hierarchical porous structures for sufficient contact and rapid transportation of the reactants in terms of composition and structures.

#Oxygen reduction reaction #ORR catalysts #co-doped #porous carbon #zn-air batterie

참고문헌 (9)

참고문헌 신청

X. Mao / 2018 / Int. J. Hydrogen Energy 43:10341

G. Liu / 2018 / Carbon 137:68

J. Guo / 2018 / Appl. Surf. Sci 456:959

F. Pan / 2017 / Electrochim. Acta 238:375

N. L. Maryam Borghei / 2014 / Appl. Catal. B-Environ 204:394

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