标题
作者
作者:Zhang, LG (Zhang, Liguo)[1 ]; Ji, SM (Ji, Shaomin)[3 ]; Yu, LT (Yu, Litao)[1 ]; Xu, XJ (Xu, Xijun)[2 ]; Liu, J (Liu, Jun)[2 ]
期刊信息
摘要
Amorphous FeF3/C nanocomposites, where FeF3 nanoparticles are intimately anchored into a highly-graphitized porous branch-like carbon framework, have been successfully designed and fabricated from the carbonized Fe-MOFs by a novel vapor-solid fluoridation reaction and dehydration reaction. Compared to the FeF3/C nanocomposites obtained from the precursors at various carbonization conditions, the one carried out at 700 degrees C for 3 h exhibits the most outstanding comprehensive sodium ion storage performance. It can deliver 302, 146, 73 mA h g(-1) discharge capacities at current densities of 15, 150, 1500 mA g(-1), respectively, exhibiting an excellent sodium ion capacity and rate performance. Moreover, it displays a good cycling performance with a discharge capacity of 126.7 mA h g(-1) at 75 mA g-1 after 100 cycles. The outstanding electrochemical features of the FeF3/C nanocomposites could be attributed to its amorphous structure and highly-graphited porous carbon framework, which is beneficial to the ionic and electronic transport and the reaction kinetics of electrode materials.
关键词
KeyWords Plus:LITHIUM; LI; PERFORMANCE; FLUORIDE; MICROSPHERES; NANOCRYSTALS; MATRIX; FABRICATION; MARICITE; NAFEPO4
作者信息
通讯作者地址:Liu, J (通讯作者)
 | South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China. |
| Guangdong Univ Technol, Sch Chem Engn & Light Ind, Guangzhou 510006, Guangdong, Peoples R China. |
地址:
电子邮件地址:smji@gdut.edu.cn; msjliu@scut.edu.cn
出版商
类别分类
研究方向:Chemistry
Web of Science 类别:Chemistry, Multidisciplinary