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源自金属有机框架材料的杂原子三元掺杂多孔碳作为氧还原反应的无金属电催化剂

Heteroatoms ternary-doped porous carbons derived from MOFs as metal-free electrocatalysts for oxygen reduction reaction.

作者信息

Li Ji-Sen, Li Shun-Li, Tang Yu-Jia, Li Kui, Zhou Lei, Kong Ning, Lan Ya-Qian, Bao Jian-Chun, Dai Zhi-Hui

机构信息

1] Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China [2] Department of Chemistry and Chemical Engineering, Jining University, Qufu 273155, P. R. China.

Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China.

出版信息

Sci Rep. 2014 May 30;4:5130. doi: 10.1038/srep05130.

DOI:10.1038/srep05130
PMID:24875253
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4038808/
Abstract

The nitrogen (N), phosphorus (P) and sulphur (S) ternary-doped metal-free porous carbon materials have been successfully synthesized using MOFs as templates (denoted as NPS-C-MOF-5) for oxygen reduction reaction (ORR) for the first time. The influences of porous carbons from carbonizing different MOFs and carbonization temperature on ORR have been systematically investigated. Due to the synergistic effect of N, P and S ternary-doping, the NPS-C-MOF-5 catalyst shows a higher onset potential as a metal-free electrocatalyst for ORR among the currently reported metal-free electrocatalysts, very close to the commercial Pt-C catalyst. In particular, the kinetic limiting current density of NPS-C-MOF-5 catalyst at -0.6 V is up to approximate -11.6 mA cm(-2), which is 1.2 times higher than that of the commercial Pt-C catalyst. Furthermore, the outstanding methanol tolerance and excellent long-term stability of NPS-C-MOF-5 are superior to those of the commercial Pt-C catalyst for ORR in alkaline media.

摘要

首次以金属有机框架材料（MOFs）为模板成功合成了氮（N）、磷（P）和硫（S）三元掺杂的无金属多孔碳材料（记为NPS-C-MOF-5）用于氧还原反应（ORR）。系统研究了不同MOFs碳化得到的多孔碳以及碳化温度对ORR的影响。由于N、P和S三元掺杂的协同效应，NPS-C-MOF-5催化剂作为一种无金属ORR电催化剂，在目前报道的无金属电催化剂中表现出更高的起始电位，非常接近商业Pt-C催化剂。特别是，NPS-C-MOF-5催化剂在-0.6 V时的动力学极限电流密度高达约-11.6 mA cm(-2)，比商业Pt-C催化剂高1.2倍。此外，在碱性介质中，NPS-C-MOF-5出色的甲醇耐受性和优异的长期稳定性优于商业Pt-C催化剂用于ORR。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f05/4038808/82d0113b4510/srep05130-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f05/4038808/eab9a1f87c65/srep05130-f1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f05/4038808/cffab153ae48/srep05130-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f05/4038808/46b507b88e0f/srep05130-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f05/4038808/0f7c108a6015/srep05130-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f05/4038808/ed5fd4f55266/srep05130-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f05/4038808/82d0113b4510/srep05130-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f05/4038808/eab9a1f87c65/srep05130-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f05/4038808/434ff9e0149f/srep05130-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f05/4038808/cffab153ae48/srep05130-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f05/4038808/46b507b88e0f/srep05130-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f05/4038808/0f7c108a6015/srep05130-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f05/4038808/ed5fd4f55266/srep05130-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6f05/4038808/82d0113b4510/srep05130-f7.jpg

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