Facile synthesis of rod-like nanostructured histidine-phosphomolybdate hybrid material with microemulsion method

ABSTRACT

A new rod-like nanostructured Keggin-type amino acid-polyoxometalate hybrid material, (His)₃PMo₁₂O₄₀ (His = histidine), was synthesized using nonionic microemulsion method. The water pools in the microemulsion system acted as nanoreactors for the reaction of histidinium hydrochloride and phosphomolybdic acid to produce nanostructured (His)₃PMo₁₂O₄₀ hybrid material. A stoichiometric amount of histidinium ion as an organic species was substituted in the Keggin-type heteropoly acid, while its primary structure remained intact. The structural characterizations indicated the nanosized rod-like morphology of the product with the average diameter size of about 100 nm.

KEYWORDS:

• Keggin
• polyoxometalate
• microemulsion
• amino acid
• rod-like nanostructure