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Renewable Porous Carbons Prepared by KOH Activation as Oxygen Reduction Electrocatalysts
He Wang-Tao; Ma Ru-Guang; Zhu Yu-Fang; Yang Ming-Jie; Wang Jia-Cheng
2019-09-23
Source PublicationJOURNAL OF INORGANIC MATERIALS
ISSN1000-324X
Volume34Issue:10Pages:1115
SubtypeArticle
AbstractThe nitrogen-doped porous carbon applied for oxygen reduction reaction (ORR) has aroused extensive interests due to its unique physical and chemical properties. However, the complicated nitrogen-doping strategy and high cost limit its extensive application. In this work, a series of nitrogen-doped porous carbons were prepared by a facile pyrolysis process coupling with subsequent KOH activation using renewable N-enriched biomass potato as carbon source. Effects of activation temperature and KOH amounts on the textural properties and electrocatalytic ORR activities of the final samples were investigated in detail. The KOH activation treatment results in a high specific surface area (SSA) and hierarchical porous structure, which is beneficial for improved ORR performance. The optimized NPC-750 possesses a high SSA of 1134.2 m(2).g(-1), developed hierarchical pores as well as moderate nitrogen content (1.57at%). It also exhibits a positive onset potential of 0.89 V (vs. RHE) and half-wave potential of 0.79 V (vs. RHE). Simultaneously, the advanced long-time stability and methanol-tolerance capacity were also obtained, implying that these biomass-derived porous carbons are potential low-cost ORR electrocatalysts. Moreover, these porous carbons show great potential in various fields including supercapacitors, adsorption/separation, catalysis and batteries as well.
Keywordbiomass porous nitrogen-doped carbons KOH activation oxygen reduction reaction
DOI10.15541/jim20190036
Language英语
WOS Research AreaMaterials Science
PublisherSCIENCE PRESS
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/26822
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
He Wang-Tao,Ma Ru-Guang,Zhu Yu-Fang,et al. Renewable Porous Carbons Prepared by KOH Activation as Oxygen Reduction Electrocatalysts[J]. JOURNAL OF INORGANIC MATERIALS,2019,34(10):1115.
APA He Wang-Tao,Ma Ru-Guang,Zhu Yu-Fang,Yang Ming-Jie,&Wang Jia-Cheng.(2019).Renewable Porous Carbons Prepared by KOH Activation as Oxygen Reduction Electrocatalysts.JOURNAL OF INORGANIC MATERIALS,34(10),1115.
MLA He Wang-Tao,et al."Renewable Porous Carbons Prepared by KOH Activation as Oxygen Reduction Electrocatalysts".JOURNAL OF INORGANIC MATERIALS 34.10(2019):1115.
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