Effect of Glycerol Concentration on the Photoelectrochemical Water Splitting Perfomance of BiVO4 Photoanode in NaNO3 and KNO3 Electrolyte
Fita Widiyatun(a*), Muhammad Taqian Mutahari(a), Ferry Anggoro Ardy Nugroho (a), and Vivi Fauzia (a)

a)Department of physics, Universitas Indonesia, Depok 16424, Indonesia

Abstract

Glycerol as a biomass-derived byproduct has attracted considerable attention in photoelectrochemical processes due to its ability to enhance charge separation efficiency and photocurrent density. In this study, the effect of glycerol concentration in sodium nitrate (NaNO3) and potassium nitrate (KNO3) electrolyte solutions at pH 2 was investigated using a bismuth vanadate (BiVO4) photoanode. The influence of glycerol concentration and electrolyte type on the photoelectrochemical performance was evaluated through several characterization techniques, including linear sweep voltammetry (LSV), electrochemical impedance spectroscopy (EIS), and chronoamperometry (CA) measurements. The results of this study are expected to provide insight into the effect of glycerol concentration and electrolyte cations in improving the performance of BiVO4 photoanodes in photoelectrochemical systems.

Keywords: photoelectrochemical water splitting- glycerol- BiVO4

Topic: Material Physics