三聚磷酸铁的制备及其防锈和电化学性能初探  

Preparation of Ferric Tripolyphosphate and Preliminary Study on its Anti-corrosion and Electrochemical Performance

作　　者：潘强 卢秋影 卓民权 胡容平 龚福忠[1] 李开成 韦少平 李艳琳[1] PAN Qiang;LU Qiuying;ZHUO Minquan;HU Rongping;GONG Fuzhong;LI Kaicheng;WEI Shaoping;LI Yanlin(School of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China;Guangxi Xinjing Technology Co.,Ltd.,Nanning 530001,China;Guangxi Chemical Research Institute Co.,Ltd.,Nanning 530001,China)

机构地区：[1]广西大学化学化工学院,广西南宁530004 [2]广西新晶科技有限公司,广西南宁530001 [3]广西化工研究院有限公司,广西南宁530001

出　　处：《化工技术与开发》2023年第4期1-4,共4页Technology & Development of Chemical Industry

基　　金：广西创新驱动发展专项资金项目(桂科AA19046002)。

摘　　要：通过高温缩合反应合成了三聚磷酸铁(Fe H_(2)P_(3)O10·2H_(2)O),采用扫描电镜(SEM)和X射线衍射(XRD)进行了表征,初步研究了其防锈性能,以及作为前驱体所合成的三聚磷酸铁锂正极材料的比容量和库伦效率。结果表明,所合成的三聚磷酸铁颗粒为类球形,粒径约0.5~1μm,防锈性能略优于三聚磷酸铝。三聚磷酸铁锂的比容量为210m Ah·g^(-1),明显高于磷酸铁锂的理论比容量(170m Ah·g^(-1)),库伦效率接近100%,充放电可逆性好。该材料具有优良的防锈性能和电化学性能,具有很好的潜在应用前景。Iron tripolyphosphate(FeH_(2)P_(3)O10·2H_(2)O)was synthesized by high temperature condensation reaction,and characterized by scanning electron microscopy(SEM)and XRD.Its anti-corrosion performance and the specific capacity and Coulomb efficiency of lithium iron tripolyphosphate cathode material,which was synthesized by using Iron tripolyphosphate as precursor,were preliminatively studied.The results showed that the synthesized ferric tripolyphosphate particles were spheroid with a particle size of about 0.5~1μm.Its anti-corrosion performance was slightly better than aluminum tripolyphosphate.The specific capacity of lithium iron tripolyphosphate reached 210 mAh/g,significantly higher than the theoretical specific capacity of lithium iron phosphate(170 mAh/g),Coulomb efficiency was close to 100%,showed good reversibility of charge and discharge.The prepared iron tripolyphosphate had excellent anti-corrosion and electrochemical performance,so exhibited good potential application prospects.

关 键 词：三聚磷酸铁 缩合反应 防锈性能 正极材料 比容量 

分 类 号：TQ138.1[化学工程—无机化工]