Nitrogen-doping of chemically reduced mesocarbon microbead oxide for the improved performance of lithium ion batteries

CORC > 青岛生物能源与过程研究所 > 中国科学院青岛生物能源与过程研究所 > 仿生能源与储能系统团队

	Nitrogen-doping of chemically reduced mesocarbon microbead oxide for the improved performance of lithium ion batteries
	Han, Pengxian; Yue, Yanhua; Zhang, Lixue; Xu, Hongxia; Liu, Zhihong; Zhang, Kejun; Zhang, Chuanjian; Dong, Shanmu; Ma, Wen; Cui, Guanglei
刊名	CARBON
	2012-03-01
卷号	50 期号:3 页码:1355-1362
中文摘要	Nitrogen was doped into chemically-reduced mesocarbon microbead oxide (CR-MCMBO) through simple annealing in ammonia at 800 _C, and the Li-ion storage properties of the prepared nitrogen-doped CR-MCMBO (NR-MCMBO) was studied. It was found that NR-MCMBO shows a highly reversible capacity of 762 mAh g_1 at 20 mA g_1 during the first charge process, which is much higher than that of the pristine MCMB (289 mAh g_1), and the specific capacity of NR-MCMBO still had a value of 535 mAh g_1 after 200 cycles. When the current density reaches 1000 mA g_1, the specific capacity of NR-MCMBO is 388 mAh g_1. The high reversible capacity of NR-MCMBO is attributed to the high amount of pyridinic nitrogen and the large number of defects induced by oxidation and nitrogen-doping. Moreover, the open pores constituted by graphene-like nanoplatelets on the spherical NR-MCMBO surface facilitate the diffusion of Li ions.
英文摘要	Nitrogen was doped into chemically-reduced mesocarbon microbead oxide (CR-MCMBO) through simple annealing in ammonia at 800 degrees C, and the Li-ion storage properties of the prepared nitrogen-doped CR-MCMBO (NR-MCMBO) was studied. It was found that NR-MCMBO shows a highly reversible capacity of 762 mAh g(-1) at 20 mA g(-1) during the first charge process, which is much higher than that of the pristine MCMB (289 mAh g(-1)), and the specific capacity of NR-MCMBO still had a value of 535 mAh g(-1) after 200 cycles. When the current density reaches 1000 mA g(-1), the specific capacity of NR-MCMBO is 388 mAh g(-1). The high reversible capacity of NR-MCMBO is attributed to the high amount of pyridinic nitrogen and the large number of defects induced by oxidation and nitrogen-doping. Moreover, the open pores constituted by graphene-like nanoplatelets on the spherical NR-MCMBO surface facilitate the diffusion of Li ions. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved.
学科主题	仿生能源系统
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Materials Science
关键词[WOS]	LI STORAGE PROPERTIES ; ANODE MATERIAL ; ELECTROCHEMICAL IMPEDANCE ; CARBON ; GRAPHITE ; GRAPHENE ; INSERTION ; CHALLENGES ; REDUCTION ; COMPOSITE
收录类别	SCI
语种	英语
WOS记录号	WOS:000300471700072
公开日期	2012-06-12
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn:8080/handle/337004/999]
专题	青岛生物能源与过程研究所_仿生能源与储能系统团队
作者单位	Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
推荐引用方式 GB/T 7714	Han, Pengxian,Yue, Yanhua,Zhang, Lixue,et al. Nitrogen-doping of chemically reduced mesocarbon microbead oxide for the improved performance of lithium ion batteries[J]. CARBON,2012,50(3):1355-1362.
APA	Han, Pengxian.,Yue, Yanhua.,Zhang, Lixue.,Xu, Hongxia.,Liu, Zhihong.,...&Cui, Guanglei.(2012).Nitrogen-doping of chemically reduced mesocarbon microbead oxide for the improved performance of lithium ion batteries.CARBON,50(3),1355-1362.
MLA	Han, Pengxian,et al."Nitrogen-doping of chemically reduced mesocarbon microbead oxide for the improved performance of lithium ion batteries".CARBON 50.3(2012):1355-1362.