N, P dual-doped carbon nanotube with superior high-rate sodium storage performance for sodium ion batteries

被引：34

作者：

Zhong, Wen ^{[1
]}

Chen, Qianwu ^{[1
]}

Yang, Fei ^{[1
]}

Liu, Weiliang ^{[1
]}

Li, Guangda ^{[1
]}

Xie, Kefeng ^{[3
]}

Ren, Manman ^{[1
,2
]}

机构：

[1] Qilu Univ Technol, Sch Mat Sci & Engn, Shandong Acad Sci, Jinan 250353, Shandong, Peoples R China

[2] Nankai Univ, Coll Chem, Minist Educ, Key Lab Adv Energy Mat Chem, Tianjin 300071, Peoples R China

[3] Lanzhou Jiaotong Univ, Sch Chem & Biol Engn, Lanzhou 730070, Gansu, Peoples R China

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2019年 / 850卷

关键词：

N; P dual-doped carbon; OFT calculations; Pseudocapacitance contribution; Sodium-ion batteries; Anode material; ANODE MATERIAL; POROUS CARBON; HIGH-CAPACITY; MESOPOROUS CARBON; GRAPHENE AEROGEL; NITROGEN; MICROSPHERES;

D O I：

10.1016/j.jelechem.2019.113392

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Herein, we demonstrate an effective strategy to prepare N and P co-doped carbon nanotubes (NPC) using pyrrole monomer and phytic acid as precursors. Importantly, density functional theory (DFT) and pseudocapacitance contribution calculations certify that the electron mobility and electrochemical kinetics of the carbon nanotubes are enhanced by P-doping. Furthermore, the co-effect of the special hollow nanotubes structure and dual N, P doping endows the NPC with excellent rate performance and long-term cycling stability when it is used as an anode material for sodium ion batteries. Even tested at a high current density of 5000 mA g(-1), a high reversible capacity of 180.3 mA h g(-1) can be obtained after 3000 cycles for the NPC electrode. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：7

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