Robust protein based organic electrocatalyst for hydrogen production through instant noodle wastewater electrolysis

Abstract

Abstract Natural resources carbonization doping using heavy atom is the common method to synthesize organic electrocatalyst for waste to hydrogen energy conversion. This study provides one-step solution to synthesize organic electrocatalyst using enzymatic protein of Lumbricus Rubellus. L,Rubellus extract and its combination with graphite flakes in powder form are tested as electrocatalyst for instant noodle wastewater electrolysis and pre-hydrolyzed instant noodle wastewater by direct mixing. Pre-hydrolysis has doubled the hydrogen production rate for each tested catalyst. Lumbricus Rubellus extract without graphite flake mix performs better in pre-hydrolyzed wastewater. Graphite flakes form polar substrates in pre-hydrolyzed wastewater. Positive substrates inhibit the hydrogen evolution reaction of pre-hydrolyzed wastewater by electron deposition. Negative substrate inactivates L,Rubellus protein due to competitive inhibition.