Renewable Porous Carbons Prepared by KOH Activation as Oxygen Reduction Electrocatalysts

doi:10.15541/jim20190036

	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
刊名	JOURNAL OF INORGANIC MATERIALS
	2019-09-23
卷号	34 期号:10 页码:1115
关键词	biomass porous nitrogen-doped carbons KOH activation oxygen reduction reaction
ISSN号	1000-324X
DOI	10.15541/jim20190036
文献子类	Article
英文摘要	The 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.
WOS研究方向	Materials Science
语种	英语
出版者	SCIENCE PRESS
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/26822]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 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.