氮掺杂石油沥青基多孔碳材料的制备及其在锂离子电池中的应用
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- 英文论文题名：Preparation of N-doped Porous Carbon from Petroleum Asphalt and Its Application in Lithium-ion Batteries
- 论文作者：刘婧妍 ; 李朋 ; 刘阳 ; 赵青山 ; 吴明铂
- 英文论文作者：Jingyan Liu ; Peng Li ; Yang Liu ; Qingshan Zhao ; Mingbo Wu ; State Key Laboratory of Heavy Oil Processing ; China University of Petroleum
- 年：2016
- 作者机构：中国石油大学(华东)化学工程学院重质油国家重点实验室;
- 论文关键词：氮掺杂多孔碳 ; 石油沥青 ; 锂离子电池
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十九分会：纳米碳材料
- 语种：中文
- 分类号：TQ127.11;TM912
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十九分会 ; 纳米碳材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：142k
- 原文格式：D
- 会议级别：全国
摘要
目前,化石能源日益紧缺,绿色可再生能源的有效利用非常重要。石油沥青是原油加工过程中的最重产物,富含大量的芳香烃,如何实现石油沥青富含芳香烃的定向转化和高附加值利用意义重大。本文以20 nm的Fe_2O_3颗粒为模板,以石油沥青为碳源,尿素为掺氮剂,通过高温煅烧的方法制备了一种锂电负极用氮掺杂石油沥青基多孔碳。沥青模板比为1:4时,氮掺杂多孔碳表现出最优异的锂电性能,500 mA g~(-1)电流密度下200次充放电循环后可逆比容量仍然稳定在672 mAh g~(-1),所制沥青基多孔碳在锂电负极材料中具有很好的应用潜力。该研究有望为沥青以及其他重质油的高附加值利用开辟新的途径。
As the shortage of fossil fuel, it is important to realize the efficient and green utilization of recyclable energy. As the heaviest product in crude oil refining process, petroleum asphalt has large content of aromatics. How to make full use of petroleum asphalt and its aromatics is big challenge for us. In this paper, N-doped porous carbon material was prepared from petroleum asphalt by high-temperature calcination, with 20 nm Fe_2O_3 nanoparticles as template and urea as N-dopant. When used as the anode of lithium-ion batteries, the as-prepared N-doped porous carbon exhibited superior electrochemical performance. It could keep a specific capacity of 672 mAh g~(-1) after 200 cycles at 500 mA g~(-1) of current density. The as-made N-doped porous carbon shows a promising application future in electrode and is also helpful for the high-value utilization of heavy oil.
As the shortage of fossil fuel, it is important to realize the efficient and green utilization of recyclable energy. As the heaviest product in crude oil refining process, petroleum asphalt has large content of aromatics. How to make full use of petroleum asphalt and its aromatics is big challenge for us. In this paper, N-doped porous carbon material was prepared from petroleum asphalt by high-temperature calcination, with 20 nm Fe_2O_3 nanoparticles as template and urea as N-dopant. When used as the anode of lithium-ion batteries, the as-prepared N-doped porous carbon exhibited superior electrochemical performance. It could keep a specific capacity of 672 mAh g~(-1) after 200 cycles at 500 mA g~(-1) of current density. The as-made N-doped porous carbon shows a promising application future in electrode and is also helpful for the high-value utilization of heavy oil.
引文
[1]Xu,C.;Ning,G.;Zhu,X.;Wang,G.;et.al.Carbon.2013,62:213
[2]Li,P.;Liu,J.;Liu,Y.;Wang,Y.;et.al.Electrochim.Acta.2015,180:164
[3]Li,P.;Liu,J.;Wang,Y.;Liu,Y.;et.al.Chem.Eng.J.2016,286:632
[2]Li,P.;Liu,J.;Liu,Y.;Wang,Y.;et.al.Electrochim.Acta.2015,180:164
[3]Li,P.;Liu,J.;Wang,Y.;Liu,Y.;et.al.Chem.Eng.J.2016,286:632