biostudies-literatureUnknown9(70)Takahashi AWell-defined K<sub>2</sub>Zn<sub>3</sub>[Fe(CN)<sub>6</sub>]<sub>2</sub>-nanoparticles (NPs) synthesized with a micromixer showed robust redox reaction cyclability. Crystal structure analysis revealed that the robustness results from the maintenance of the original rhombohedral crystal structure in the oxidation state. The blue/colourless electrochromic device with the K<sub>2</sub>Zn<sub>3</sub>[Fe(CN)<sub>6</sub>]<sub>2</sub>-NPs and Prussian blue NPs showed recyclability over 1 million redox reactions.RSC advances41083-41087https://www.ebi.ac.uk/biostudies/studies/S-EPMC9076391biostudies-literatureOne million cyclable blue/colourless electrochromic device using K<sub>2</sub>Zn<sub>3</sub>[Fe(CN)<sub>6</sub>]<sub>2</sub> nanoparticles synthesized with a micromixer.PMC9076391Takahashi AWatanabe HNoda KKawamoto TfalseOne million cyclable blue/colourless electrochromic device using K<sub>2</sub>Zn<sub>3</sub>[Fe(CN)<sub>6</sub>]<sub>2</sub> nanoparticles synthesized with a micromixer.Well-defined K<sub>2</sub>Zn<sub>3</sub>[Fe(CN)<sub>6</sub>]<sub>2</sub>-nanoparticles (NPs) synthesized with a micromixer showed robust redox reaction cyclability. Crystal structure analysis revealed that the robustness results from the maintenance of the original rhombohedral crystal structure in the oxidation state. The blue/colourless electrochromic device with the K<sub>2</sub>Zn<sub>3</sub>[Fe(CN)<sub>6</sub>]<sub>2</sub>-NPs and Prussian blue NPs showed recyclability over 1 million redox reactions.2019-01-01T00:00:00Z2019 Dec2025-04-26T15:13:28.146Z2025-02-19T03:24:15.351ZS-EPMC90763913554007310.1039/c9ra09496b