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Electrochemical sensor having nonporous working electrode

  • US 7,736,479 B2
  • Filed: 05/09/2005
  • Issued: 06/15/2010
  • Est. Priority Date: 10/22/2001
  • Status: Expired due to Fees
First Claim
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1. An electrochemical gas sensor, comprising:

  • a substrate having a surface;

    a first electrode deposited on said surface;

    a second electrode spaced apart from said first electrode and deposited on said surface for detecting a gas, said second electrode having a porosity of less than 5%, a pore size less than 0.12 micrometers at said pore size'"'"'s greatest measurement, and a thickness less than 0.2 micrometers for controlling flooding;

    an electrolytic material in electrical contact with said first electrode and said second electrode for carrying a flow of current; and

    ,a reservoir containing an acidic solution.

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