Preparation of Hydrogenase and Viologen-Functionalized Carbon Nanotube Composites for Electrochemical Oxidation of Hydrogen.
Bionanocomposites of hydrogenase and viologen-functionalized carbon nanotubes (H2ase/V-MWNTs) were prepared and characterized by using infrared spectra and scanning electron microscope. Cyclic voltammograms revealed two couples of redox waves corresponded to the electron transfer processes of viologens and [4Fe-4S]2+/1+ clusters of hydrogenase. The current intensity was enhanced in the H2 atmosphere, which suggested that the present bio-nanocomposites could be used as heterogeneous bio-catalyst to catalyze reversible reaction between protons and H2.
Yan-Rong
YR
Fu
Jiang
J
Liu
Meng
M
Chen
Nikolay A
NA
Zorin
Dong-Jin
DJ
Qian
D004586:Electrophoresis / Q000379:methods*; D004800:Enzymes, Immobilized / Q000737:chemistry; D006859:Hydrogen / Q000737:chemistry*; D006864:Hydrogenase / Q000737:chemistry*; D008422:Materials Testing; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry; D010316:Particle Size; D013499:Surface Properties; D014755:Viologens / Q000737:chemistry*
D004800:Enzymes, Immobilized; D037742:Nanotubes, Carbon; D014755:Viologens; D006859:Hydrogen; D006864:Hydrogenase; D010100:Oxygen