Aluminium hydride has been synthesized electrochemically, providing a synthetic route which closes a reversible cycle for regeneration of the material and bypasses expensive thermodynamic costs which have precluded AlH3 from being considered as a H2storage material.
A one-dimensional, isothermal model for a direct methanol fuel cell (DMFC) is presented. This model accounts for the kinetics of the multi-step methanol oxidation reaction at the anode. Diffusion and crossover of methanol are modeled and the mixed potential of the oxygen cathode due to methanol crossover is included. Kinetic and diffusional parameters are estimated by comparing the model to data from a DMFC. This semi-analytical model can be solved rapidly so that it is suitable for inclusion in real-time system level DMFC simulations.
1 January 2007 in Electrochemical and Solid-State Letters
Niobium was doped into anatase support at using sol-gel chemistry. A catalyst was synthesized by reduction in tetrahydrofuran. The methanol electro-oxidation activity of the catalyst shows that this oxide support was electrically conductive. The current was 6% higher on the catalyst compared to a commercial catalyst at . The electrochemically active surface area of the was 94% higher than , thus the current per active site was 100% higher on . A membrane electrode assembly with had 46% higher current than an equivalent E-TEK membrane electrode assembly at .