Surface hydroxyl concentration on Zr(OH)4 quantified by 1H MAS NMR

► Solid state 1H NMR analysis of Zr(OH)4 surface. ► Quantified hydroxyl groups on surface of Zr(OH)4. ► Concentration of bridging to terminal hydroxyls in dehydrated and hydrated Zr(OH)4. ► Confirm ratio of bridging to terminal groups with XPS.