An electrochemically functional layer of hydrogenase extract on an electrode of large and tunable specific surface area.

Schlicht, Stefanie, Assaud, Loïc, Hansen, Moritz, Licklederer, Markus, Bechelany, Mikhael, Perner, Mirjam and Bachmann, Julien (2016) An electrochemically functional layer of hydrogenase extract on an electrode of large and tunable specific surface area. Open Access Journal of Materials Chemistry A, 4 (17). pp. 6487-6494. DOI 10.1039/C6TA00392C.

[img]
Preview
Text
c6ta00392c.pdf - Published Version
Available under License Creative Commons: Attribution 3.0.

Download (1195Kb) | Preview
[img]
Preview
Text
c6ta00392c1.pdf - Supplemental Material
Available under License Creative Commons: Attribution 3.0.

Download (226Kb) | Preview

Supplementary data:

Abstract

Electrode supports are generated by electrospinning of polyacrylonitrile fibers and subsequent coating of a thin electrically conductive TiO2 layer by atomic layer deposition. The supports are then functionalized with a [NiFe]-hydrogenase-containing membrane fraction from Escherichia coli and are characterized structurally and electrochemically. The hydrogenase suspension generates a micron-thick organic film around the fiber mat, which exhibits electrocatalytic activity for hydrogen evolution. Furthermore, the electrode geometric surface area is varied systematically via the electrospinning procedure, which reduces the charge transfer resistance and increases the hydrogen evolution current density to >500 μA cm−2 at 0.3 V overpotential.

Document Type: Article
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1039/C6TA00392C
ISSN: 2050-7488
Date Deposited: 19 Dec 2018 09:35
Last Modified: 01 Feb 2019 15:01
URI: http://oceanrep.geomar.de/id/eprint/45057

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...