<span style="font-size:11.0pt;font-family: "Times New Roman";mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Mangal;mso-ansi-language:EN-GB;mso-fareast-language:EN-US;mso-bidi-language: HI" lang="EN-GB">Synthesis and characterization of Pt supported on Fe₅(PO₄)₃(OH)₅catalysts</span>

Abstract

566-571Pt supported on iron hydroxyphosphate catalysts has been synthesized and characterized by various adsorption and spectroscopic methods. X-ray diffraction patterns of the supported and unsupported catalysts indicate a very weak diffraction line due to the Fe5(PO4)3(OH)5 phase. The X-ray photoelectron spectroscopic studies reveal a surface composition attributed to Fe5(PO4)3(OH)5 species. The temperature programmed sequential reduction-oxidation-reduction of 1wt.% Pt/Fe5(PO4)3(OH)5 indicates the absence of H2 spillover due to Pt on the Fe5(PO4)3(OH)5 support. The temperature programmed reduction studies also show the non-reducible behavior of Fe5(PO4)3(OH)5 phase