Electrosynthesis of Cu/hydroxyapatite as the catalyst for hydrogen production via NaBH4 hydrolysis

Abstract

Synthesis of Cu/hydroxyapatite by electrochemical was studied. These particles used as the catalyst for hydrogen production via NaBH4 hydrolysis. The work aimed to study how the current density and the electrolysis time during catalyst synthesis affect the generation of hydrogen via the hydrolysis kinetics of NaBH4. Catalyst synthesis was carried out in an electrochemical cell separated by the membrane bipolar. Electrolysis was carried out at various current densities (67, 133 and 200 mA/cm2) and various electrolysis times (30, 60, and 90 minutes). This research shows that at high current density and electrolysis time, the peak intensity of the XRD Cu and CuO patterns was low and the peak intensity of the hydroxyapatite pattern was high. Hydrogen production by hydrolysis of NaBH4 is better for catalysts that are synthesized at high current density and electrolysis time.