| 摘要 |
<p>A liquid electrolyte fuel cell (10) is defined by a pair of spaced apart electrodes (12, 14) having an insulative layer (16) therebetween, each electrode having an electrocatalyst (18, 20) deposited thereon. Each of the electrodes and the insulative layer is at least partially nanoporous, i.e., having a pore size of from about 0.5 to about 50 nm. The electrodes are fabricated by pyrolizing a suspension of conductive carbon dispersed in a pyrolyzable precursor solution, preferably, a mixture of a non-graphitizing carbon, e.g. polyfuryl alcohol and a pore size regulator, e.g. polyethylene glycol. Viscosity of the precursor solution is controlled with acetone, or other carbonyl-containing compounds. The electrodes are bonded to the insulative layer either by further pyrolysis of an intermediate precursor solution or with an adhesive gel. The electrodes and insulative layer or matrices are impregnated with a suitable electrolyte to form the cell.</p> |
