Accession Number : AD0460795


Title :   BIOCHEMICAL FUEL CELLS.


Descriptive Note : Quarterly progress rept. no. 10, 1 Oct-31 Dec 64,


Corporate Author : MAGNA CORP ANAHEIM CA RESEARCH AND DEVELOPMENT DIV


Personal Author(s) : Brake, Jon M


Report Date : 31 Dec 1964


Pagination or Media Count : 26


Abstract : A 45% increase in current density was obtained by circulating the formate fermentation mixture through a perforated electrode, instead of using a static system. A current density of 19 mA/sq cm at a polarization of 0.15 V was obtained from a 0.03 M formate fermentation mixture at pH 1. The open circuit potential at this pH is -0.25 V vs. SCE. A new formic acid analysis, suitable for use with small amounts of fermentation mixtures, has been developed. It consists of two steps - vacuum distillation to separate the formic acid from interfering compounds, and oxidation to CO2 with Pb(OAc)4 to determine formic acid in the distillate. (Author)


Descriptors :   *POWER SUPPLIES , FUEL CELLS , BIOCHEMISTRY , CARBOXYLIC ACIDS , FORMATES , BACTERIA , ELECTROCHEMISTRY , ELECTRODES , POLARIZATION , ANODES(ELECTROLYTIC CELL) , FLUID FLOW , ELECTRIC CURRENT , DISTILLATION , LACTIC ACID


Distribution Statement : APPROVED FOR PUBLIC RELEASE