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Novel spindle-like polypyrrole hollow nanocapsules containing Pt nanoparticles (Pt NPs/PPy composite hollow nanospindles) were successfully prepared by using beta-akaganeite (β-Fe 3+ O(OH,Cl)) nanospindles as templates and methanoic acid as a reducing agent. The β-Fe 3+ O(OH,Cl) templates can be easily obtained in ethanol/water mixing solution in the presence of thiophene and FeCl...
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