Sentences with phrase «iridium catalyst»

Using iridium catalyst for artificial photosynthesis could pave way for more efficient means of harvesting and storing solar energy.

They additionally found the reason why their battery works: the spacing of the iridium catalyst nanoparticles in the reduced graphene oxide (rGO) cathode favor the production of lithium superoxide (LiO2) and inhibit peroxide (Li2O2) generation.

Hong et al. used theory to guide the design of an iridium catalyst that inhibits this rearrangement, steering the nitrene toward C — H insertion to form a variety of useful lactam rings.

Stanford University scientists have developed an advanced zinc - air battery with higher catalytic activity and durability than similar batteries made with costly platinum and iridium catalysts.

This suggests that the first benzene decomposition step, not the adsorption, is the rate - determining step on either rhodium or iridium catalysts.

The team further explored increasing the speed of the hydrogen - producing reaction by evaluating rhodium and iridium catalysts on a magnesium aluminum spinel support.

Not exact matches

«We built a conventional water splitter with two benchmark catalysts, one platinum and one iridium,» Wang said.

But the cost of producing it by using electricity to split water is high, because the most efficient catalysts developed so far are often made with precious metals, like platinum, ruthenium and iridium.

Here we report an iridium oxide / strontium iridium oxide (IrOx / SrIrO3) catalyst formed during electrochemical testing by strontium leaching from surface layers of thin films of SrIrO3.

We report the application of theory and mechanism studies to optimize a class of pentamethylcyclopentadienyl iridium (III) catalysts for suppression of this competing pathway.

Key to the success of this approach are designer iridium photocatalysts that serve two roles: First, as the catalyst to build the emissive brush polymers, and then as a necessary dopant for the resulting OLED arrays.

Precious metals including platinum, palladium and iridium have proven to be efficient catalysts, but their high cost and poor stability and durability make them impractical for large - scale commercialization.

They engineered it so that one end carries a catalyst — iridium oxide.

Previously, dehydrogenation was possible only with catalysts based on expensive metals, like iridium.

They're also seeking a cheaper catalyst than iridium.

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

Although much progress has been made in recent years in the development of catalysts devoid of noble metals, photosensitizers still rely, in the main, on molecular compounds containing rare and costly metals, such as ruthenium and iridium, or on inorganic semiconductor materials containing cadmium, a toxic metal.

For CO2 hydrogenation purposes, most known catalysts are based on precious metals such as iridium, rhodium or ruthenium.

The catalyst in this case was a thin film crystal, grown to be as flat as possible, with one layer made from iridium oxide and another layer made from strontium iridium oxide.

To make a truly large - scale impact, the company may need to find cheaper electrode catalysts than silver and iridium oxide, says Haotian Wang, a chemist at Harvard University.

In 2011, researchers led by Richard Masel, a chemist and CEO of Dioxide Materials in Boca Raton, Florida, tested a setup with silver and iridium oxide catalysts and a liquid electrolyte to promote the CO2 to CO reaction.