earthplatform.com

Results 1 - 10 from 25 for platinum catalyst in 0.517 sec.

Nitrous oxide sources - Industry
Nitric acid is a key ingredient in nitrogen based fertilizers. Nitric acid production involves the oxidation of ammonia (NH3) using a platinum catalyst. Nitrous oxide emissions arise from this process during the catalytic oxidation and it is estimated that around 5 grams of nitrous oxide are produced in this way for every kilogram of nitric acid which is manufactured ...
www.ghgonline.org

Global warming and cooling during the past 400,000 years/TITLE>
Water There are many kinds of fuel cells. Some are expensive because they require a platinum catalyst. Some are not useful for transportation because they operate at very high temperatures. [2] ... and oxygen must be provided. They are potentially economical because they do not require an expensive catalyst. An AFC went to the moon with the Apollo astronauts. The phosphoric acid fuel cell (PAFC ...
planetforlife.com

California Fuel Cell Partnership
Each membrane electrode assembly consists of two electrodes (anode and cathode) with a thin layer of catalyst, bonded to either side of a proton exchange membrane (PEM). Gases (hydrogen and air) are supplied ... in the flow field plates. Hydrogen flows through the channels to the anode where the platinum catalyst promotes its separation into protons and electrons. On the opposite side of the PEM, ...
drivingthefuture.org

EIA - Emissions of Greenhouse Gases in the U.S. 2006-Nitrous Oxide Emissions
United States. Nitric acid, a primary ingredient in fertilizers, usually is manufactured by oxidizing ammonia with a platinum catalyst. This oxidation causes nitrous oxide emissions. Data for all years 1990-2006 figure data Waste Management Emissions from human sewage account for nearly all U.S. nitrous oxide emissions ...
www.eia.doe.gov

Mosquito eliminators from sharper image are chemical free
Say goodbye to biting insects with mosquito eliminators from sharper image. The exclusive catalytic converter uses a platinum catalyst that is flameless and never needs replacing. For other insects, sharper image's ultrasonic pest deterrent is powerful and easy to use. This deterrent system keeps pests out of any ...
www.for-a-healthy-home.com

Electronic pest control products from Sharper image eliminate mosquitos
Computer maintenance and timer operate the unit only when needed and shuts it down automatically when it is too cold for mosquitoes. Exclusive catalytic converter uses a platinum catalyst that is flameless and never needs replacing. The mosquito eliminator eradicates mosquitoes, no-see-ums, black flies and other biting insects. Reduction in these insect populations can lead to ...
www.for-a-healthy-home.com More from this site

Types of Fuel Cells
Nafion) to shuttle protons from the anode to the cathode. The PEM's solid electolyte is much easier to handle and use than a liquid counterpart, and its low operating temperature allow a quick startup. A thin platinum catalyst chemically activates the reactions at the electrodes. In the past, the platinum has made these devices prohibitively expensive, ...
rmi.org

Music and Nightlife | Santa Cruz County | In Santa Cruz this week: DJ Spooky in Big Sur, Crooked Jades at the Crepe Place, Habib Koite at the Rio Theater and more.
Wet Umbrella provides the perfect soundtrack to a night of light head nodding and heavy drinking. Catalyst; free; 8pm. (CC) The Volker Strifler Band The name Volker Strifler Band doesn't exactly roll off ... 30 years--and we're all the better for it. The accordionist, television producer and Grammy-winning platinum songwriter is the kind of musician you'll never admit to liking but would still love ...
metroactive.com

Consumer Energy Center Renewable Energy
DuPont. A solid polymer ion exchange membrane is used as an electrolyte. Platinum Ruthenium is used as the catalyst. PEM fuel cells are being tested in mobile sources such as buses and ... to operate at even higher temperatures that can support fuel formulation within the fuel cell. No catalyst at all is required. This technology is the least mature of the fuel cell types currently on ...
consumerenergycenter.org

Platinum (Pt) - Chemical properties, Health and Environmental effects
Applications Platinum has many uses. Its wear- and tarnish-resistance characteristics are well-suited for making fine jewelry ... is used (30%) as a catalyst in the catalytic converter, an optional component of the gasoline-fuelled automobile exhaust system. The largest use (50%) of platinum is for jewellery, another 20% ...
lenntech.com