Modification of Pt-Porous Composite Material (Pt-PCM) and Its Application for Electroanalysis of Uric Acid and Electrosynthesis of Acetic Acid from Ethanol

Riyanto (Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Islam Indonesia, Kaliurang Street KM 14.5 Sleman Yogyakarta, 55584, Indonesia)
Nurhasanah (Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Islam Indonesia, Kaliurang Street KM 14.5 Sleman Yogyakarta, 55584, Indonesia)
Mohamed Rozali Othman (Electrosynthesis and Environmental Chemistry Laboratory (L102), School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, UKM Bangi, Selangor Darul Ehsan, 43600, Malaysia)

Science and Technology Indonesia
Vol. 8 No. 4 (2023): October

Research on the synthesis of Pt-Porous Composite Material (Pt-PCM) has been done. This material is used for the electrochemical activity of uric acid and electrochemical synthesis of acetic acid from ethanol. Pt-PCM is made by mixing 99.995% platinum powder and PVC or Poly (vinyl chloride) homogeneously with a homogenizer for 3.0 h, plus tetrahydrofuran solvent, and pressed with a strength of 10 tons/cm2. The material produced was analysis using Scanning Electron Microscopy (SEM), voltammetry potential V and Tafel plot. The material is used as an electrode for the determination of uric acid and the synthesis of acetic acid from ethanol. The results showed that Pt-PCM has evenly distributed pores and has a perfect Tafel slope compared to metal platinum or solid platinum. Pt-PCM also has the excellent ability as a working electrode for the analysis of uric acid in human urine and electro synthetic acetic acid from alcohol. In conclusion, Pt-Porous Composite Material (Pt-PCM) is a porous material, so it is excellent as a candidate for electrodes.