| 摘要 |
976,796. Fuel cells. ESSO RESEARCH & ENGINEERING CO. May 28, 1963 [Oct. 29, 1962], No. 21328/63. Heading H1B. A fuel cell comprises metal screen electrodes in juxtaposition with or in contact with one or more interposed ion-permeable and/or ion exchange membranes, and the mesh diameters of the electrodes are from 0.001 to 0.050 inch, the depth of the electrodes is from 0.001 to 0.010 inch, the ratio of actual surface area to apparent surface area of the electrodes is from 0.50 to 2.0, and the pore diameters of the membranes are from 5 Š to 50 Š. When not in contact with the interposed membrane, each electrode is spaced from 0.001 to 1.0 mm. therefrom. The membrane porosity is from 10 to 80%. The electrodes are of 52 x 80 mesh platinum with platinum black deposited thereon as catalyst. With nitric acid in the catholyte compartment and sulphuric acid in the anolyte compartment, methanol was fed in as fuel. Apart from hydrogen and carbon monoxide, other carbonaceous fuels soluble in the electrolyte may be used, e.g. alcohols, glycols, C 2 -C 5 monoolefins, diolefins. Oxidants used include soluble fluids such as chlorine, oxygen, air and nitric acid. Several anion-exchange and cation-exchange membranes are specified, the preferred membranes being interpolymer ion - exchange membranes. Specifications 571,029, 577,707 and U.S.A. Specification 2,957,206 are referred to. |
