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Nitrogen-Doped Carbon Foam: Preparation and Oxygen Reduction Reaction Performance |
Author Name | Affiliation | E-mail | LI Jing-Han | School of Materials and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China | | SONG Ya-Cheng | School of Materials and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China | | ZHOU Ya-Zhou | School of Materials and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China | | CHENG Xiao-Nong | School of Materials and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China | | YANG Juan | School of Materials and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China | yangjuan6347@ujs.edu.cn |
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Abstract: Nitrogen-doped carbon foam material was prepared by using hydrolyzed vinyl imidazolium nitrate ([Hvim] NO3) as a blowing agent and a primary nitrogen source to realize self-foaming of the material during the carbonization process. The secondary nitrogen source melamine (C3H6N6) was innovatively introduced. The nitrogen doped carbon foam material (HxMy-T, where x:y was the mass ratio of the primary and secondary nitrogen source, T corresponded the carbonization temperature) were obtained. This method increased the nitrogen doping content of the catalyst and constructed more active nitrogen sites which improved the oxygen reduction reaction (ORR) activity. Electron microscope images showed that the H1M1-1000 with typical foam -like pore structure and abundant layered fold. The X-ray photoelectron spectroscopy indicated that the H1M1-1000 possessed a high N atomic fraction of 6.77%, and the content of pyridinic-N and graphitic-N were up to 22.23% and 55.59% (atomic fraction), respectively. For electrochemistry test, the half wave potential of H1M1 1000 in alkaline medium was 0.834 V (vs RHE), which was comparable to that of commercial Pt/C. In addition, the catalyst had superior long-time stability and methanol resistance than that of commercial Pt/C. |
Keywords: nitrogen-doped carbon foam melamine oxygen reduction reaction fuel cells |
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LI Jing-Han,SONG Ya-Cheng,ZHOU Ya-Zhou,CHENG Xiao-Nong,YANG Juan.Nitrogen-Doped Carbon Foam: Preparation and Oxygen Reduction Reaction Performance[J].Chinese Journal of Inorganic Chemistry,2021,37(3):457-464. |
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