an enzymic electric cell was constructed in which the anode was composed of a zinc plate inserted in aqueous nh ( 4 ) cl solution and the cathode was composed of an electrode made of a glassy carbon stick inserted in a reaction mixture containing cytochrome c ( 3 ) hydrogenase ( h ( 2 ) : ferricytochrome c ( 3 ) oxidoreductase , ec 1.12.2.1 ) and methylviologen under an atmosphere of n ( 2 ) .
C0020284
hydrogenase
C0030016
oxidoreductase