Matti Valkiainen

TL;DR: Testing here the incorporation of a high redox potential laccase from Trametes hirsuta in different types of conducting inks to produce dry printed enzyme electrode layers demonstrates that the dry printed layers maintained their enzymatic activity even after several months.

TL;DR: High stability is obtained for printed fuel cells using ALDH, providing cell voltages over the threshold for up to 74 h, compared to only 2 h for cells with anodes using GOx, providing promising directions for further development of mass-producible, completely enzymatic, printed biofuel cells.

TL;DR: In this paper, a mass-producible, completely enzymatic printed glucose/oxygen biofuel cells were developed, which are based on filter paper coated with conducting carbon inks containing mediators and laccase for reduction of oxygen, or aldose dehydrogenase, for oxidation of glucose.

TL;DR: In this article, the active surface areas were found to be linearly dependent on the Pt mass density in the catalyst layers, and approximately 30% of the Pt loading in the MEAs were electroactive.

TL;DR: In this article, the electrocatalytic properties of fuel cell catalyst ink in thin film form based on Vulcan XC72/Pt (30%) and Nafion was investigated by means of a flow cell of impinging jet type in flows of H 2 and H 2 + CO dissolved in H 2 SO 4 electrolyte.