Sentences with phrase «of different catalysts»

In a multi-step selection process, they investigated a large number of different catalyst materials.

Not exact matches

These exchanges bring fresh ideas, new perspectives and different ways of approaching problems, which are all catalysts for the innovation which fuels the economy and help us meet global challenges, ranging from climate change to fossil fuel dependence and infectious diseases.

They are very different from persons who appear to have «arrived» but are actually hurting deeply behind their facade; such persons tend to inhibit, not stimulate, group growth.4 The real catalyst is willing to share where he is in the here - and - now, where he is hurting, hoping, finding fragments of meaning, and connecting with others.

The Gunners have used a number of different set - ups this term as he tries to get the best out of his squad in different outings, and injuries have often been a catalyst to those changes, but with Jack Wilshere and Aaron Ramsey both fighting fit and in - form, it is hard to deny either a starting berth.

The team then added the nanoparticle catalyst to solutions of different organosilanes to measure its ability to induce hydrogen production.

«Splitting water usually requires two different catalysts, but our catalyst can drive both of the reactions required to separate water into its two constituents, oxygen and hydrogen,» says study leader Associate Professor Chuan Zhao.

While some catalysts can do the job, they generally do not have good selectivity, meaning they create a variety of different reaction products.

Johnson, along with study co-author and post-doctoral researcher Jingyun Ye at the University of Pittsburgh, examined a series of eight different functional groups of Lewis acid and base pairs (Lewis pairs for short), which are highly reactive compounds often used as catalysts.

The Pt3Ni nanoframe catalysts achieved a more than 36-fold and 22-fold enhancement in two different measures of catalytic activity (mass and specific activities, respectively) for the oxygen reduction reaction in comparison to state - of - the - art carbon - supported Pt catalysts (Pt / C) during prolonged exposure to reaction conditions.

Peterson's team has started putting together a database of common reaction chemicals and their interactions with different catalyst surfaces.

Our catalyst improves this process by passing through a chemical intermediate — called an eta -3-ozone intermediate — in which the two oxygen atoms from molecular oxygen can be easily separated from each other and passed on to two different molecules of substrate.

The new catalysts are already commercially available from a number of different chemical companies and are likely to be used in the near future to make important chemical compounds.

«The advantage of this approach is that we can map how different synthesis parameters, such as temperature and catalyst particle size, influence how nanotubes form while simultaneously testing the resulting CNT forests for how they will behave in one comprehensive simulation,» Maschmann said.

Working in collaboration with scientists from the Deutsches Textilforschungszentrum in Krefeld and Sungkyunkwan University in Suwon, Korea, researchers at the Max - Planck - Institut für Kohlenforschung in Mülheim an der Ruhr have developed a process for immobilising different organic catalysts on textiles with the help of ultraviolet light.

This group's achievement demonstrates the possibility of changing high - value chemical compounds such as bioethanol, which has been gathering attention in recent years, into different chemical compounds by using catalysts differently.

This group's achievements will lead to the development of methods for synthesizing various organic materials from butadiene by using different catalysts.

Round or cubic particles, on the other hand, have different atomic arrangements at the surface and are therefore less effective catalysts for the chemical reaction, something which would have to be compensated by using increased amounts of noble metal.

Adding the amino acids to the catalyst allowed them to test the effect of different features, such as polarity, on the catalyst.

The scientists took the well - characterized nickel - based catalyst for hydrogen production previously synthetized at PNNL and built a dozen different versions by adding either a single synthetic amino acid or a dipeptide, consisting of two molecules.

Using a technique called electron - back scatter diffraction (EBSD), we were also able to determine how these different catalyst grains were oriented and relate this to the shapes and growth rates of the graphene domains.»

Making chemicals for industrial processes often requires scientists to use a catalyst — a substance that speeds up a chemical reaction, reducing the amount of energy it takes to make different products.

«Although this reduction pathway is well - known and there have been different methods to do this in the past, one of the biggest problems is that the catalysts are not sufficiently selective,» Delferro said.

Then, they tried different ways of combining the catalyst with very pure, specially marked propanol to see the effects of the different arrangements.

Catalysts need to be integrated into systems spanning a wide range of sizes, shapes, and material compositions, and control a variety of chemical reactions under vastly different conditions.

After trying different metal chloride catalysts in the ionic solvent, they found a pair of catalysts that worked well: A combination of copper chloride and chromium chloride under 120 degrees Celsius broke down the cellulose without creating a lot of unwanted byproducts.

My hope is that these award winners will be a catalyst for both teachers and students to use the design thinking process as a way of viewing traditional classroom activities in a different light.

Today, a different catalyst — the threat to U.S. competitiveness in the global economy — has prompted calls for new government action to stimulate our once - again - faltering pipeline of young scientists.

That is the point of a school trip in a nutshell, different scenery, new experiences, and better relationships; all catalysts for change.

The result of this comparison is the importance of «Performance Character» or «Grit» as a catalyst for success in these two different educational environments.

For Tom Standage, each drink is a kind of technology, a catalyst for advancing culture by which he demonstrates the intricate interplay of different civilizations.

The «fuel» or the «catalyst» that allows all three of the above individuals to excel in each of these three very different careers, is consistency.

I really, really hope that this will finally be the catalyst for improving security at a number of different high - risk companies such as these credit reporting agencies.

For more earnings based situations, I'm not sure I'd describe some of the things you mention as catalysts — not really a matter of definition / principles (and everybody's different on this anyway), but more because I think most aspects of a business story can be «taken for granted» (that's what we shareholders are paying management for, after all!)

The whole exhibition is structured as a catalyst, each work capturing or transmitting different energies and stories, through their materials (rubies, silver, fabric), their processes (photographic paper, embalmment, music, electricity, codification): the viewer is caught in a net of stories, symbolism and images which she / he asked to complete.

Recorded either privately in her studio or on - site, never rehearsed and only attempted once, Gilmore assumes the roles of many different female stereotypes and creates makeshift sets that act as the catalyst for a mélange of wacky riffs on daily life.

Hans Ulrich Obrist: I think there are many different ways, of course, to be a catalyst.

But I also wrote it because climate change can be a catalyst for a range of very different and far less desirable forms of social, political, and economic transformation.

Investigated buses represented different technologies in terms of engines, exhaust after - treatment systems (e.g., diesel particulate filter, selective catalytic reduction, and three - way catalyst) and fuels (diesel, diesel - electric (hybrid), ethanol, and compressed natural gas (CNG)-RRB-.

Megan Zavieh: Well, for me the big catalyst to my freedom of thought to continue down a path that's totally different than a traditional law practice was the first time that TBD Law was held.

The book describes different familial patterns of parental alienation, compares alienation to a cult, explains how it is a form of emotional abuse, details the different catalysts to having the realization that one is an adult child of PAS, and describes the painful long - term consequences.

And according to Joshua Wolf Shenk, the author of «Powers of Two,» these tiny shifts are also the catalyst for a different kind of thought process — a shared mind, so to speak — that allows couples (romantic or not) to come up with more creative solutions to problems than they'd ever think up on their own.