A spinel-type oxides ZnFe2O4 photocatalysts were prepared by citric acid complex method,and characterized with XRD,TG-DTA,FT-IR,TEM techniques.The photocatalytic activities were investigated by the degradation of C3H2...A spinel-type oxides ZnFe2O4 photocatalysts were prepared by citric acid complex method,and characterized with XRD,TG-DTA,FT-IR,TEM techniques.The photocatalytic activities were investigated by the degradation of C3H22N6O6S2Na2 by artificial visible Light.The results show that the photocatalytic activity of ZnFe2O4 is stable,under experimental conditions,the degradation rate of C3H22N6O6S2 is over 90% in 60min.展开更多
通过酚醛树酯包覆和碳热反应在富锂正极材料表面原位构建碳和尖晶石双壳保护结构,对这种核壳结构的正极材料进行了结构和形貌表征,并研究了其电化学性能.研究发现,尖晶石相为材料提供了三维锂离子迁移通道,碳包覆层显著提高了正极材料...通过酚醛树酯包覆和碳热反应在富锂正极材料表面原位构建碳和尖晶石双壳保护结构,对这种核壳结构的正极材料进行了结构和形貌表征,并研究了其电化学性能.研究发现,尖晶石相为材料提供了三维锂离子迁移通道,碳包覆层显著提高了正极材料的电子电导率,两种效应的共同作用极大降低了材料的电化学阻抗,提升了材料的放电比容量,这种多壳层结构正极材料还具有优异的倍率性能,在5C倍率下放电比容量可达到135.1 m A·h/g.展开更多
基金The Research Project from Department of Science and Technology of Shandong Province(2012GGA01012)the Scientific Research Foundation for the Returned Overseas Chinese Scholars of State Education Ministry(2004-527)
文摘A spinel-type oxides ZnFe2O4 photocatalysts were prepared by citric acid complex method,and characterized with XRD,TG-DTA,FT-IR,TEM techniques.The photocatalytic activities were investigated by the degradation of C3H22N6O6S2Na2 by artificial visible Light.The results show that the photocatalytic activity of ZnFe2O4 is stable,under experimental conditions,the degradation rate of C3H22N6O6S2 is over 90% in 60min.
文摘通过酚醛树酯包覆和碳热反应在富锂正极材料表面原位构建碳和尖晶石双壳保护结构,对这种核壳结构的正极材料进行了结构和形貌表征,并研究了其电化学性能.研究发现,尖晶石相为材料提供了三维锂离子迁移通道,碳包覆层显著提高了正极材料的电子电导率,两种效应的共同作用极大降低了材料的电化学阻抗,提升了材料的放电比容量,这种多壳层结构正极材料还具有优异的倍率性能,在5C倍率下放电比容量可达到135.1 m A·h/g.
