Ultra-high surface area and mesoporous N-doped carbon derived from sheep bones with high electrocatalytic performance toward the oxygen reduction reaction |
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| Authors: | Shunxi Li Ruoyu Xu Hui Wang Dan J. L. Brett Shan Ji Bruno G. Pollet Rongfang Wang |
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| Affiliation: | 1.College of Chemistry and Chemical Engineering,Northwest Normal University,Lanzhou,China;2.Institute of Chemical Engineering,Qingdao University of Science and Technology,Qingdao,China;3.Department of Chemical Engineering,University College London,London,UK;4.Centre for Renewable Energy, Department of Energy and Process Engineering, Faculty of Engineering,Norwegian University of Science and Technology,Trondheim,Norway |
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| Abstract: | A nitrogen (N)-doped mesoporous carbon material exhibiting ultra-high surface area was successfully synthesized from sheep bones via a facile and low-cost method. The obtained carbon material had an ultra-high specific surface area of 1961 m2 g?1 and provided rich active sites for the oxygen reduction reaction (ORR), which in turn resulted in high electrocatalytic activity. It was found that the pore size distribution for the newly prepared carbonaceous material fell in the range of 1–4 nm. Benefiting from its high surface area and the presence of pyridine-N and quaternary-N species, the as-prepared carbon material exhibited excellent ORR activity in an oxygen-saturated 0.1 M KOH solution, compared to commercial Pt/C (10 wt%). Due to its high ORR catalytic activity, stability and low-cost, using sheep bone as C and N precursors to produce N-doped carbon provides an encouraging step toward the goal of replacing commercial Pt/C as fuel cell cathode electrocatalyst. |
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