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  • Operation Principle and Construction of Zirconium Dioxide Oxygen Sensors of the XYA Series
    Sensortechnics' oxygen sensors of the XYA series consist of two zirconium dioxide (ZrO2) discs coated. with thin porous layers of platinum which serve as electrodes. The two discs are attached to a platinum ring, forming a hermetically sealed chamber.
  • Polarization in Piezoceramic Materials
    position of all of its negative ions. For example, a water molecule (see Figure 1) has a bond angle of 104.5° between the oxygen and the two hydrogen atoms. As a result, the average position of the two positive ions is not centered on the oxygen ion as it would be if the bond angle were 180° and so
  • Electricity out of thin air
    produced hydrogen. Hydrogenase enzymes can be produced at lower cost, without concern for carbon-monoxide poisoning. And since they are chemically selective and tolerant, they work in mixtures of hydrogen and oxygen, eliminating the need for expensive fuel-separation membranes. Hydrogenases also work
  • Selecting the Right Blower and Pump for Fuel Cell Applications
    into the system, a catalyst on the surface of the membrane splits the hydrogen gas into protons and electrons. Protons pass through the membrane and react with oxygen to form water, while the electrons, unable to pass through the membrane, flow around it and are conducted to an external circuit
  • Precious Metals
    to increase strength or hardness. Gold is extremely inert. It is not attacked by nitric, hydrochloric, or sulfuric acid, but is dissolved by aqua regia and is attacked by sodium and potassium cyanide plus oxygen. The least costly of the precious-metal group, silver is also very malleable, ductile
  • U.S. Battery and Fuel Cell Patents :: ABT Online :: May 2008 :: Advanced Battery Technology ::
    for separating liquid from a process gas stream of an electrochemical cell stack, Ricardo Bazzarella and Todd A. Simpson, Hydrogenics Corp. (CA). U.S. 7,338,582 (20080304), Method for manufacturing manganese oxide nanostructure and oxygen reduction electrode using said manganese oxide nanostructure
  • U.S. Patents | June 2007 | A B T |
    ., Ltd. (JP). U.S. 7,198,867 (20070403), Electrochemical generation, storage and reaction of hydrogen and oxygen, Nicholas A. Sanders, Diffusion Science, Inc. U.S. 7,198,868 (20070403), Alkaline storage battery, Shigekazu Yasuoka, Tetsuyuki Murata, and Jun Ishida, Sanyo Electric Co., Ltd. (JP). U.S.

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