Facile Integration of Hierarchical Pores and N, P-Codoping in Carbon Networks Enables Efficient Oxygen Reduction Reaction | |
Department | 先进润滑与防护材料研究发展中心 |
Pan FP(潘富平)1,2; Duan YX(段有新)1; Liang AM(梁爱民)1; Zhang JY(张俊彦)1; Li, Ying2; Liang AM(梁爱民); Zhang JY(张俊彦) | |
The second department | 固体润滑国家重点实验室 |
2017 | |
Source Publication | Electrochimica Acta |
ISSN | 0013-4686 |
Volume | 238Pages:375-383 |
Abstract | Effective integration of hierarchically porous architecture and high-density distribution of dopant sites into carbon is essential to improve the activity of heteroatom-doped carbon for oxygen reduction reaction (ORR). Herein, we present a general sealed space-assisted approach to fabricate N,P-codoped porous carbon networks (NP-PCN) by calcination of a self-assembled mixture of C6H14N2O2, NH4H2PO4, and NaCl. The NaCl assemblies serve as a space-enclosed nanoreactor for the effective formation of hierarchical pores with high surface area and dense N,P-induced dopants by preventing the loss of N,P-containing gasses from the decomposition of precursors during annealing. The NP-PCN is applied as an ORR catalyst and exhibits excellent performance with a positive half-wave potential of 0.82 V vs. RHE, a low Tafel slope of 59 mV dec−1, high tolerance to methanol, and high durability in alkaline media, making NP-PCN a promising alternative to costly platinum for the ORR. The enhanced performance is attributed to the combination of hierarchical pores and optimized N,P codoping, which significantly enhances the available number of catalytic sites by exposing the N,P-induced dopants and facilitates mass transfer in the ORR process. This finding opens a new avenue for the design of advanced porous carbons to improve their electrocatalytic activity. |
Keyword | Carbon Networks Hierarchical Pores Codoping Electrocatalysis Oxygen Reduction |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.electacta.2017.04.044 |
Funding Organization | the National Key Basic Research and Development (973) Program of China (2013CB632300);the National Natural Science Foundation of China (51275508) |
Indexed By | SCI |
If | 4.798 |
Language | 英语 |
Funding Project | 纳米润滑研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/21885 |
Collection | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 固体润滑国家重点实验室(LSL) |
Corresponding Author | Li, Ying; Liang AM(梁爱民); Zhang JY(张俊彦) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA |
Recommended Citation GB/T 7714 | Pan FP,Duan YX,Liang AM,et al. Facile Integration of Hierarchical Pores and N, P-Codoping in Carbon Networks Enables Efficient Oxygen Reduction Reaction[J]. Electrochimica Acta,2017,238:375-383. |
APA | Pan FP.,Duan YX.,Liang AM.,Zhang JY.,Li, Ying.,...&张俊彦.(2017).Facile Integration of Hierarchical Pores and N, P-Codoping in Carbon Networks Enables Efficient Oxygen Reduction Reaction.Electrochimica Acta,238,375-383. |
MLA | Pan FP,et al."Facile Integration of Hierarchical Pores and N, P-Codoping in Carbon Networks Enables Efficient Oxygen Reduction Reaction".Electrochimica Acta 238(2017):375-383. |
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