Features of phase-refined materials

The concepts of phase-refined materials are introduced and interpreted in this paper. Phase-refined materials are refined structures from the phase view in single or multiple phases. β-zinc oxalate refines zinc oxalate into villous structures. The specific β-phase zinc oxalate grows from multiphase α and β zinc oxalate. Compared with conventional methods, the phase always produces regular-shaped -zinc oxalate instead of multiphase α and β phases. -phase zinc oxalate is activated and refined into a villous shape. This villous material can be used for H2 sensing, bio sensing, and other applications. Moreover, villous material can be a template for super paramagnetic iron oxide, which is used in magnetic target nanomedicine.