Potassium-doped sodium-manganese-iron-based Prussian white material as well as preparation method and application thereof

The invention discloses a potassium-doped sodium-manganese-iron-based Prussian white material as well as a preparation method and application thereof. The chemical formula of the material is NaxKyMn [Fe (CN) 6] z-1-z.nH2O (x + y is greater than or equal to 1 and less than or equal to 2, z is greater...

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Bibliographische Detailangaben
Hauptverfasser:	LIU YAN, LI MING, MING XIANQUAN, NA CHANG-RI, LI CHUNLIU, LI GUILIANG, LI WEIJIAN, YANG MAOFENG, BI WEINING, HUANG GUANHAN, WU XUEHANG, LI JUNJI, HUANG BINGXING, LI CHUNXIA, WU WENWEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AMMONIA BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F COMPOUNDS THEREOF CYANOGEN ELECTRICITY INORGANIC CHEMISTRY METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	The invention discloses a potassium-doped sodium-manganese-iron-based Prussian white material as well as a preparation method and application thereof. The chemical formula of the material is NaxKyMn [Fe (CN) 6] z-1-z.nH2O (x + y is greater than or equal to 1 and less than or equal to 2, z is greater than or equal to 0 and less than or equal to 0.2, n is greater than or equal to 0 and less than or equal to 5, and represents a [Fe (CN) 6] 4-vacancy defect). The potassium-doped sodium-manganese-iron-based Prussian white is prepared by taking manganese salt, sodium citrate, sodium ferrocyanide and potassium ferrocyanide as raw materials through a coprecipitation method. The potassium doping amount can be regulated and controlled by changing the proportion of sodium ferricyanide to potassium ferrocyanide in the raw materials. The NaxKyMn [Fe (CN) 6] z-1-z.nH2O is a two-phase compound and has a sodium-based Prussian white phase (NaxMn [Fe (CN) 6] z-1-z.nH2O) and a potassium-based Prussian white phase (KyMn [Fe (CN)