Amorphous Ni(OH)2 Nanoboxes: Fast Fabrication and Enhanced Sensing for Glucose

Abstract Inspired by Pearson's hard and soft acid‐base (HSAB) principle, uniform amorphous Ni(OH) 2 nanoboxes with intact shell structures and various sizes are quickly fabricated by deliberately selecting S 2 O 3 2− as the coordinating etchant toward Cu 2 O templates and optimizing the reaction conditions. It is found that not only the solvent system but also the employing of a surfactant is vital for the fabrication of the nanoboxes. Ni(OH) 2 nanoboxes, as an example, demonstrate an improved electrochemical sensing ability for glucose, which might be due to their amorphous and hollow structural features.