Coherent Sub-Nanometer Interface between Crystalline and Amorphous Materials Boosts Electrochemical Synthesis of Hydrogen Peroxide.

There are enormous yet largely underexplored exotic phenomena and properties emerging from interfaces constructed by diverse types of components that may differ in composition, shape, or crystal structure. It remains poorly understood the unique properties a coherent interface between crystalline and amorphous materials may evoke, and there lacks a general strategy to fabricate such interfaces. It is demonstrated that by topotactic partial oxidation heterostructures composed of coherently registered crystalline and amorphous materials can be constructed.

Oxygen vacancies on NbO enhanced the performance of HO electrosynthesis from O reduction.

A serial oxygen vacancy (O) on NbO is synthesised by H calcination, and H-300 exhibited high selectivity and activity for HO (93.4%, 562.5 mmol g).