Bioprocess-inspired Actin Biomineralized Hematite Mesocrystals for Energy Storage  

作　　者：XU Wei ZHAO Chao XIE Jingjing WANG Rongjie 

机构地区：[1]Tianjin Institute of Power Sources,Tianjin 300384,China [2]CETC LAN TIAN Technology Co.,Ltd.,Tianjin 300384,China [3]State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2023年第6期1299-1303,共5页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the National Natural Science Foundation of China(Nos.52003212 and 51832003)。

摘　　要：Biomineralization is a biological process of synthesizing inorganic minerals within organisms.It has been found that intracellular proteins are involved in the room temperature synthesis process of anatase Ti O2in living mussels.Here,we used intracellular actin to synthesize hematite by biomineralization.Biomineralized hematite has a nano spindle structure with a particle size of approximately 150 nm.The microstructure indicates that the prepared hematite is a mesocrystals composed of ordered arrangement and assembly of primary nanoparticles.In addition,hematite mesocrystals exhibit good lithium storage performance as electrode materials for lithium batteries.The discharge specific capacity of the battery remained at 560.7 m Ah·g^(-1)after 130 cycles at a current density of 200 m A·g^(-1).This work expands the synthesis methods of hematite by biomineralization,and provides a new strategy for preparing inorganic materials by intracellular proteins.

关 键 词：ACTIN HEMATITE BIOMINERALIZATION MESOCRYSTALS lithium battery 

分 类 号：TB321[一般工业技术—材料科学与工程]