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:

1964-12-31

Pagination or Media Count:

26.0

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 mAsq 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 PbOAc4 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

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE