To provide a method of producing Prussian blue-type metal complex nanoparticles without necessarily requiring complicated steps and an excessive amount of raw materials, but allowing one to obtain nanometer-size fine particles having desired fine particle properties, and Prussian blue-type metal complex nanoparticles obtained by the method, a dispersion of the nanoparticles, a method of regulating the color of the nanoparticles, and an electrode and a transmitted light-regulator each using the nanoparticles; Prussian blue-type metal complex nanoparticles are produced by: mixing an aqueous solution containing a metal cyano complex anion having predetermined metal atom M
A
as a central metal and an aqueous solution containing a cation of predetermined metal atom M
B
, thereby precipitating the crystal of a Prussian blue-type metal complex having the metal atom M
A
and the metal atom M
B
; and then mixing the Prussian blue-type metal complex with an aqueous solution containing a metal cyano complex anion having the metal atom M
C
as a central metal and/or an aqueous solution containing a cation of the metal atom M
D
. The thus-obtained Prussian blue-type metal complex nanoparticles have a preferable electrochemical responsiveness, and the particles can be used for forming a thin film including them to construct a light-transmitted regulator.
提供一种生产普鲁士蓝型
金属配合物纳米颗粒的方法,无需复杂步骤和过多原材料,但可以获得所需的纳米级细颗粒性能,以及通过该方法获得的普鲁士蓝型
金属配合物纳米颗粒、颗粒分散液、调节颗粒颜色的方法,以及使用该颗粒的电极和透光调节器;生产普鲁士蓝型
金属配合物纳米颗粒的方法为:混合含有预定
金属原子MA作为中心
金属的
金属
氰配合物阴离子的
水溶液和含有预定
金属原子MB阳离子的
水溶液,从而沉淀出具有
金属原子MA和
金属原子MB的普鲁士蓝型
金属配合物晶体;然后将普鲁士蓝型
金属配合物与含有
金属原子MC作为中心
金属的
金属
氰配合物阴离子和/或含有
金属原子MD阳离子的
水溶液混合。因此获得的普鲁士蓝型
金属配合物纳米颗粒具有良好的电
化学响应性,可以用于形成包含它们的薄膜,以构建透光调节器。