材料科学
微波食品加热
锂(药物)
阳极
纳米材料
锂离子电池
电极
纳米颗粒
纳米技术
化学工程
多孔性
电池(电)
热解
电解质
电化学
复合材料
化学
工程类
内分泌学
物理化学
物理
功率(物理)
量子力学
医学
作者
Chi Zhang,Zheng-Fan Chen,Haiyan Wang,Jun Yan,Jun Yan
出处
期刊:ACS applied nano materials
[American Chemical Society]
日期:2021-09-01
卷期号:4 (9): 8744-8752
被引量:36
标识
DOI:10.1021/acsanm.1c01312
摘要
Currently, because of higher theoretical capacity compared with other materials, the research of Fe2O3 as an anode electrode material for lithium-ion batteries (LIBs) has been widely reported. By using a microwave-assisted-template method, the Fe-based metal–organic framework (Fe-MIL-88A) material with a spindle-like morphology was prepared by a microwave-assisted method. Via the one-step pyrolysis of Fe-MIL-88A-MW (microwave-assisted synthesis) in air, uniform Fe2O3-MW-4h nanoparticles with a multicavity structure were obtained. The influence of microwave holding time on the formation of internal cavity in Fe-MIL-88A-MW-derived Fe2O3 nanoparticles was investigated. The resulting Fe2O3-MW-4h nanoparticles exhibit the unique advantages of nanomaterials, with a high surface area and large pore volume. These features facilitate the movement of the electrolyte and reduce the resistance of the material. Most importantly, the multicavity structure of Fe2O3-MW-4h nanoparticles could reduce the volume change during the Li+ insertion and extraction process. When materials were used as anode materials for LIBs, the Fe2O3-MW-4h nanoparticles exhibit excellent electrochemical performance. Therefore, the microwave-assisted-template method is promising in manufacturing metal oxides with multicavity structures for the next generation of LIB anode electrode materials.
科研通智能强力驱动
Strongly Powered by AbleSci AI