A Comparison of Pt(II) and Pt(IV) Chloride Precursors for Strong Electrostatic Adsorption Synthesis of Pt/Alumina and Pt/Carbon Catalysts

作者：Samad Jadid E; Keels Jayson; Regalbuto John R^*

来源：Catalysis Letters, 2016, 146(1): 157-162.

DOI：10.1007/s10562-015-1631-3

• Strong electrostatic adsorption
• Platinum (II) tetrachloride
• Platinum (IV) hexachloride
• pH
• Oxides Carbon

Platinum (II) tetrachloride (PTC) has been studied as an anionic metal precursor in strong electrostatic adsorption method of catalyst preparation. Compared to the conventionally used platinum (IV) hexachloride precursors, PTC exhibited greater pH stability in aqueous solution. As a result, PTC uptake on high PZC supports remained nearly unchanged irrespective of precursor aging. Upon reduction of these PTC catalysts small (similar to 2.0 nm) and well-dispersed Pt nanoparticles were obtained on alumina, whereas on carbon, Pt sizes were significantly larger (4-10 nm).
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• 出版日期2016-1