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BIO FUEL
A more energy-efficient catalytic process to produce olefins
by Staff Writers
Pittsburgh PA (SPX) May 31, 2017


Inside front cover of Catalysis Science and Technology. Catal. Sci. Technol., 2017, 7, 1974-1974 - Reproduced by permission of The Royal Society of Chemistry. Credit Giannis Mpourmpakis/Computer-Aided Nano and Energy Lab

Research at the University of Pittsburgh into a more energy-efficient catalytic process to produce olefins, the building blocks for polymer production, was recently featured on the inside front cover of the Royal Society of Chemistry journal, Catalysis Science and Technology (May 21, 2017, Issue 10). The team's investigations could influence potential applications in diverse technology areas from green energy and sustainable chemistry to materials engineering and catalysis.

"Carboranes: the strongest Bronsted acids in alcohol dehydration" (DOI: 10.1039/C7CY00458C) was authored by Giannis Mpourmpakis, assistant professor of chemical and petroleum engineering. PhD candidate Pavlo Kostetskyy and undergraduate student Nicholas A. Zervoudis, part of Mpourmpakis' Computer-Aided Nano and Energy Lab (C.A.N.E.LA.), are co-authors. Pitt's Center for Simulation and Modeling provided computational support.

"Carboranes are one of the strongest known acids, but little is known about how these molecular catalysts can dehydrate biomass-derived alcohols," Dr. Mpourmpakis explained. "Our computational research not only detailed the mechanism under which alcohols dehydrate on these catalysts, but most importantly we developed linear relationships between the energy input needed to observe dehydration of alcohols and the alcohol characteristics."

According to the paper, "these obtained relationships are especially relevant to the field of solid acid catalysis, a widely studied area with a vast range of industrial applications, including the formation of olefins (polymer building blocks) from biomass-derived alcohols as well as fuels and chemicals from sugars and polyols." The group's research focused on primary, secondary and tertiary alcohols, and revealed the slope of linear relationships depending on the reaction mechanism.

"This research is important because now experimentalists have a way to identify the reaction followed when different alcohols dehydrate," Mpourmpakis said. "Because this process involves biomass-based production of polymers, we can potentially create a more sustainable and energy-efficient process."

Research paper

BIO FUEL
New photocatalyst speeds up the conversion of carbon dioxide into chemical resources
Daegu, South Korea (SPX) May 30, 2017
DGIST's joint research team has developed a new titania photocatalyst that converts carbon dioxide into methane three times more efficiently than the existing photocatalyst by manipulating its surface. Carbon dioxide is a major cause of global warming. Therefore, in order to control atmostpheric carbon dioxide concentration, many countries are actively working on numerous studies to invest ... read more

Related Links
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