Figure 2: Manganese hexacyanomanganate and copper hexacyanoferrate physical characterization.
From: Full open-framework batteries for stationary energy storage
X-ray diffraction patterns of (a) MnII—N≡C—MnIII and (d) CuII—N≡C—FeIII. Bulk synthesis of CuII—N≡C—FeIII and MnII—N≡C—MnIII at room temperature by co-precipitation results in a highly crystalline material. SEM shows particles of the order of 500 nm for the MnII—N≡C—MnIII (b, scale bar=5 μm) and 20–50 nm for the CuII—N≡C—FeIII (e, scale bar, 1 μm). These results are consistent with those of TEM of the MnII—N≡C—MnIII (c, scale bar. 500 nm) which show crystalline, faceted nanoparticles and CuII—N≡C—FeIII (f, scale bar, 100 nm).
