文献类型：期刊文献

英文题名：Facile synthesis of phosphorus-doped carbon under tuned temperature with high lithium and sodium anodic performances

作者：Zhao, Qian Meng, Yan Yang, Liuchao He, Xiao He, Bin Liu, Yunhua Xiao, Dan

第一作者：Zhao, Qian

通信作者：Zhao, Q[1];Xiao, D[1]

机构：[1]Chengdu Univ, Coll Mech Engn, 2025 Chengluo Rd, Chengdu 610106, Sichuan, Peoples R China;[2]Sichuan Univ, Coll Chem Engn, 24 South Sect 1,Yihuan Rd, Chengdu 610065, Sichuan, Peoples R China;[3]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Guizhou, Peoples R China

第一机构：Chengdu Univ, Coll Mech Engn, 2025 Chengluo Rd, Chengdu 610106, Sichuan, Peoples R China

通信机构：corresponding author), Chengdu Univ, Coll Mech Engn, 2025 Chengluo Rd, Chengdu 610106, Sichuan, Peoples R China.

年份：2019

卷号：551

起止页码：61-71

外文期刊名：JOURNAL OF COLLOID AND INTERFACE SCIENCE

收录：;EI(收录号：20191906894785);Scopus(收录号：2-s2.0-85065124552);WOS:【SCI-EXPANDED(收录号:WOS:000473372100007)】；

基金：The authors thank the National Natural Science Foundation of China (Nos. 21606024 and 51605048) and the Applied Basic Research Programs of Sichuan province (Grant No. 2018JY0062) for supporting this work.

语种：英文

外文关键词：Phosphorus-doped carbons; Tuned temperature; Phytic acid; Lithium ion battery; Sodium ion battery

摘要：Phytic acid derived carbons provide an excellent dual functionality for lithium-and sodium-ion batteries under tuned pyrolysis temperature. The acquired carbon at 800 degrees C is suitable to lithium-ion batteries due to its high surface area (1426.75 m(2) g(-1)) and hierarchical porous structure. Tested against Li, it delivers a high capacity of 1787 mA h g(-1) and coulombic efficiency of 82%. Another obtained carbon at 950 degrees C is suitable to sodium-ion batteries due to its large lattice spacing (0.4115 nm), defect density and phosphorus content (1.12%). Tested against Na, it delivers the initial specific capacity of 387 mA h g(-1) with coulombic efficiency of 50.6%, and maintains a high reversible capacity of 300 mA h g(-1) after 300 cycles at a current rate of 100 mA g(-1). High energy density and power density are also acquired in lithium- and sodium-ion batteries. The effects of pyrolysis temperature on microstructure and electrochemical behaviours of carbons are discussed detailedly. It is proved that the carbons with tuned pyrolysis temperature behave differently due to a synergistic effect among the lattice spacing, graphitization degree, defect density, phosphorus concentration and porous structure. (C) 2019 Elsevier Inc. All rights reserved.