Patent ID: 7951273

Claim:
An electrochemical gas generator comprising: an electrolysis cell with a gas-impermeable housing, which is closed by a gas-permeable membrane for the discharge of a test gas CO or a calibrating gas CO; an electrolyte containing a mesoxalic acid or a mesoxalate; a cathode formed of a noble metal, a mixture of noble metals or a material containing carbon, said cathode being in direct contact with said electrolyte; an anode formed of a noble metal, a mixture of noble metals or a material containing carbon, said anode being in direct contact with said electrolyte; a control unit acting as a power source, said control unit being connected to said anode and said cathode and controlling electrolysis to react mesoxalic acid or a mesoxalate at the anode to form said test gas CO or said calibrating gas CO by decarboxylation from the mesoxalic acid or the mesoxalate reacted at said anode; and a reference electrode in contact with said electrolyte in said electrolysis cell, wherein a substance reacted at said anode contains a mesoxalic acid or a mesoxalate and is provided as a molding wherein said molding is directly adjacent to said membrane with said anode provided as a contacting platinum mesh.