Sentences with phrase «platinum as a catalyst»

Rhenium is used with platinum as a catalyst in the production of lead - free, high - octane fuels and combined with tungsten and molybdenum to make metal alloys used in jet engines.

The resulting «mutant metal» outperforms platinum as a catalyst, says Chirik.

Increasing the surface area of the filter and adding small amounts of platinum as a catalyst should speed up the process.

Not exact matches

One research group has found that an iron - based catalyst works just as well as the platinum catalysts used in fuel cells today.

While displaying this behavior, the bonded platinum nanoparticles maintain an effective surface area functioning as a catalyst for chemical reactions, a discovery that could lower the production costs of platinum - catalyzed fuel cells.

Catalysts, such as metal oxide supported precious metals like platinum and gold, are used to lower the reaction temperature and increase the production of hydrogen.

Platinum's properties make it an essential component of catalysts that speed up the reactions needed to make many everyday household items, such as gasoline and vegetable oils.

«These include metal chalcogenides such as the mineral pentlandite, which is just as efficient as platinum and is also significantly more stable towards catalyst poisons such as sulphur,» explains Ulf - Peter Apfel.

«Metals such as platinum are frequently used as catalysts,» says Gareth Parkinson.

Heterogeneous catalysis involves the use of metal catalysts like platinum to speed reactions, as in the catalytic converter of a car.

Working at Universal Oil Products Co. in Des Plaines, Illinois, he found that platinum could serve as a much better catalyst.

Platinum is used as a catalyst in many clean energy processes, including in catalytic converters and fuel cells.

By doubling the power density of the fuel cell stack, GM engineers halved its size as well as halved the amount of expensive materials, such as platinum catalysts, that such fuel cells require.

Noble metals such as platinum are useful as catalysts for versatile chemical reactions including fuel cell vehicles and reduction of CO2 emission.

A few noble metals, such as gold and platinum, can avoid HER and convert CO2 to CO; however, these metals are relatively rare and too expensive to serve as cost - efficient catalysts.

The hydrogenation catalysts mostly used today contain toxic or expensive heavy metals, such as nickel, palladium or platinum.

Hydrogen fuel cells, which expel only water and heat as waste, are an appealing way to generate clean electricity, but the present technology relies on expensive platinum catalysts.

«It may sound very simple, but this change allows us to use nonprecious metals as catalysts instead of the very expensive platinum group metals.

«Up until now, rechargeable zinc - air batteries have been made with expensive precious metal catalysts, such as platinum and iridium oxide.

They synthesized small quantities of realistic catalysts, such as platinum - copper single atom alloy nanoparticles supported on an alumina substrate, and then tested them under industrial pressure and temperatures.

Platinum is used as a catalyst in fuel cells, in automobile converters and in the chemical industry because of its remarkable ability to facilitate a wide range of chemical reactions.

Because platinum is at the center of many clean energy and green chemicals production technologies, such as fuel cells, catalytic converters, and value - added chemicals from bio-renewable feedstocks, the new, less expensive platinum - copper catalysts could facilitate broader adoption of such environmentally friendly devices and processes, she added.

Though not quite as active as commercially available platinum catalysts, the high performance of graphene - anchored MoSoy was extremely encouraging to the scientific team.

While platinum group elements and their compounds are widely used as catalysts, their other functions have not been explored very much, partly because they are expensive.

Platinum is one of the costly metals used as catalysts in new technologies employed for industrial chemical processes, renewable energy sources, pollution control and many other purposes.

Platinum is used as a catalyst in many clean energy systems, including in catalytic converters and fuel cells.

Inside the fuel cell, a catalyst generally made from platinum breaks apart the hydrogen and «releases» electrons that serve as energy sources.

Because of its outstanding performance as a catalyst, platinum plays a major role in fuel cells.

Replacing precious metals such as platinum with less expensive catalysts such as iron and nickel can result in both cost - savings and decreased environmental impacts.

Members of the PNNL - led hydrogen catalysis team will discuss developing catalysts using abundant metals rather than spendy ones such as platinum.

A new robust and highly active bifunctional catalyst developed by Rice University and the University of Houston splits water into hydrogen and oxygen without the need for expensive metals such as platinum.

Researchers in the Institute for Integrated Catalysis at Pacific Northwest National Laboratory and at Oak Ridge National Laboratory performed the analysis of the industrial catalyst known as aluminum oxide - supported platinum.

Porous nanosized structures that can hold platinum and other noble metals can be directly used in such a way as to circumvent the problems of today's carbon - supported catalysts.

Currently, these materials — called catalysts, because they spur reactions along — rely on expensive metals such as platinum.

The poison is produced by mixing certain liquid organic chemicals with industrial catalysts such as platinum or palladium to alter the chemical bonds.

Usually contains platinum, palladium and / or rhodium, which acts as a catalyst in a chemical reaction that converts unburned hydrocarbons, carbon monoxide and oxides of nitrogen into water vapor, carbon dioxide and other gases that are less toxic than untreated exhaust fumes

The highly dispersive LNT catalyst uses noble metal particles, such as platinum, microparticulated to approximately 40 % and arranged effectively.

Upon completion of all three phases of the Holy Cross Project, this internationally renowned, model village will house 23 families in LEED Platinum residences, and act as a catalyst for sustainability in the neighborhood — and at the local and national level.

If you can eliminate the need for platinum and replace it with a less exotic, more abundant and — most importantly — dramatically cheaper catalyst, then the dream of using hydrogen as an energy storage medium becomes that much more real.

Conventional catalysts used to split water into hydrogen and oxygen come from rare and expensive metals such as platinum, which costs more than $ 1,700 an ounce and is highly volatile price-wise.