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Carbon-based fuel cell

A fuel cell, organic fuel technology, used in fuel cells, battery electrodes, circuits, etc.

Inactive Publication Date: 2007-01-31
THE UNIVERSITY OF AKRON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, these conventional high-temperature fuel cells also exhibit excessive sulfur precipitation on the catalyst surface as well as high NO x emission

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] exist image 3 In , a test assembly comprising a fuel cell 10 of the present invention is shown. The fuel cell 10 consists of a dense disc of YSZ (from Tosoh Corp.) coated with a thin layer of anode and cathode catalyst material to form the electrodes 12,14. Detailed steps involved in catalyst preparation and fuel cell 10 construction are explained in Example 2.

[0045] By having interface and Labview TM The software PC 50 obtains current and voltage output data from the fuel cell 10 . Gaseous exhaust products were analyzed by an SRI 8610C gas chromatograph54 and a Pfeiffer QMS200 mass spectrometer56. Analysis of gaseous products such as CO and CO2 allows determination of fuel conversion efficiency and by-product formation.

[0046] refer again figure 2 , shows the use of pure CH 4 Performance (I-V curves) of fuel cell 10 fueled with Ohio No. 5 coal (Table 1). Using coal as solid organic fuel, the coal is loaded into the tubular box 24 through the inlet 25 and ...

Embodiment 2

Test design

[0075] A YSZ disk (YSZ disk) with a thickness of 1 mm was purchased from Tosoh Inc. and used as the solid oxide electrolyte 18 . Ni(NO 3 ) 2 and NH 4 ReO 4 Impregnation prepares the materials that form the anode 14 and electrochemical oxidation catalyst assembly. The nominal weight percents of Ni and Re on the anode material are 5wt% (wt% means weight percent) and 2wt%, respectively. The anode / electrochemical oxidation catalyst material was pasted on the surface of a YSZ disc (1000 microns) with glycerin and calcined at 1000°C for 4 hours. This procedural process is repeated twice for making the thin layer forming the anode 14 .

[0054] A first electrode material was prepared by mixing lanthanum strontium manganese oxide (LSM-20, NexTech Materials) with YSZ powder in a 1:1 ratio. The cathode 12 was formed by pasting this first electrode material on a YSZ disc using glycerin, and calcined at 950° C. for 4 hours.

Solid Oxide Fuel Cell Assembly

[0055] Wi...

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PUM

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Abstract

A direct-electrochemical-oxidation fuel cell and method for generating electrical energy from a solid-state organic fuel. The fuel cell includes a cathode provided with an electrochemical-reduction catalyst that promotes formation of oxygen ions from an oxygen containing source at the cathode, an anode provided with an electrochemical-oxidation catalyst that promotes direct electrochemical oxidation of the solid-state organic fuel in the presence of the oxygen ions to produce electrical energy, and a solid-oxide electrolyte disposed to transmit the oxygen ions from the cathode to the anode. The electrochemical oxidation catalyst can optionally include a sulfur resistant material.

Description

[0001] related application [0001] This application claims the benefit of US Provisional Application No. 60 / 520,155, filed November 14, 2003; and US Provisional Application No. 60 / 558,856, filed April 2, 2004. field of invention [0002] The present invention relates generally to the generation of electrical power from solid fuels, and more particularly to solid-oxide fuel cells for generating electrical power from solid organic fuels based on direct electrochemical oxidation of the solid organic fuels. Background of the invention [0003] Conventional solid-oxide fuel cells utilize an electrolyte placed between an anode and a cathode to facilitate the transfer of ions between them. Traditionally, solid fossil fuels, such as coal, have had to be gasified and reformed before being introduced into solid-oxide fuel cells to generate electricity. Despite the additional processing steps required, using such solid-state fuel cells to generate electricity remains an attractive op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/36B05D5/12
CPCY02E60/12Y02E70/20Y02E60/10
Inventor S·S·C·川
Owner THE UNIVERSITY OF AKRON
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