Global to push GA events into
skip to main content

Title: Carbon aerogel electrodes for direct energy conversion

A direct energy conversion device, such as a fuel cell, using carbon aerogel electrodes, wherein the carbon aerogel is loaded with a noble catalyst, such as platinum or rhodium and soaked with phosphoric acid, for example. A separator is located between the electrodes, which are placed in a cylinder having plate current collectors positioned adjacent the electrodes and connected to a power supply, and a pair of gas manifolds, containing hydrogen and oxygen positioned adjacent the current collectors. Due to the high surface area and excellent electrical conductivity of carbon aerogels, the problems relative to high polarization resistance of carbon composite electrodes conventionally used in fuel cells are overcome.
Inventors:
 [1];  [2];  [3]
  1. (San Leandro, CA)
  2. (Pleasanton, CA)
  3. (Pleasant Hill, CA)
Issue Date:
OSTI Identifier:
870822
Assignee:
Regents of University of California (Oakland, CA) LLNL
Patent Number(s):
US 5601938
Contract Number:
W-7405-ENG-48
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
Language:
English
Subject:
carbon; aerogel; electrodes; direct; energy; conversion; device; fuel; cell; loaded; noble; catalyst; platinum; rhodium; soaked; phosphoric; acid; example; separator; located; placed; cylinder; plate; current; collectors; positioned; adjacent; connected; power; supply; pair; gas; manifolds; containing; hydrogen; oxygen; due; surface; excellent; electrical; conductivity; aerogels; relative; polarization; resistance; composite; conventionally; cells; overcome; aerogel electrodes; gas manifolds; composite electrode; fuel cell; containing hydrogen; current collector; fuel cells; power supply; phosphoric acid; energy conversion; electrical conductivity; carbon aerogel; positioned adjacent; composite electrodes; carbon aerogels; carbon composite; conversion device; current collectors; direct energy; gas manifold; excellent electrical; /429/502/