Holewinski

CHBE students shine with prestigious awards and honors

Susan Glairon — Mon, 25 Nov 2024 18:55:49 +0000

CHBE students shine with prestigious awards and honors Susan Glairon Mon, 11/25/2024 - 11:55

Emma Aldrich, a member of the Sprenger Group, received a Division 15 Oral Presentation Award at the 2024 American Institute of Chemical Engineers (AIChE) Annual Meeting, held Oct. 27-31 in San Diego. The award included a $600 prize.

Tom Chaney of the Toney Group has been selected for the American Chemical Society's Excellence in Graduate Polymer Research Symposium and invited to present in the oral session at the 2025 Spring ACS Meeting in San Diego on March 24 and 25.

Claire Ely's proposal, ChemECar, was approved for full funding ($3,000) by the Engineering Excellence Fund. Ely is with the Toney Group.

Luis Kitsu Iglesias, a fifth-year PhD candidate in Professor Mike Toney’s lab, received the prestigious gold award—the highest graduate student honor—at the 2024 Fall Meeting of the Materials Research Society (MRS) for his exceptional battery research. Read more.

Delaney McNally, an undergraduate student in the Anseth Lab, earned first place in the Food, Pharmaceutical and Biotechnology VIII category of the national poster competition at the 2024 American Institute of Chemical Engineers (AIChE) annual meeting, held Oct. 28-31 in San Diego.

Tanvi Pati, an undergraduate student in the Hind Lab, earned first place in the Food, Pharmaceutical and Biotechnology category of the national poster competition at the 2024 American Institute of Chemical Engineers (AIChE) annual meeting, held Oct. 28-31 in San Diego.

Paula Pranda, a member of the White and Hayward labs, was selected as a recipient of the 2025 Peebles Award for Graduate Student Research in Adhesion Science. The award provides partial support for attendance at the 2025 Annual Meeting of the Adhesion Society.

Nathanael Ramos, a member of the Holewinski and Medlin Groups, has been awarded a Department of Energy (DOE) Office of Science Graduate Student Research (SCGSR) fellowship. Ramos will begin his research at Pacific Northwest National Lab in December.

Nidhi Thite of the Randolph group was recognized by the Journal of Pharmaceutical Science as an "Outstanding Early Career Scientist.”

A roundup of chemical and biological engineering students who won prestigious awards and honors this semester.

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ChBE PhD student awarded Quad Fellowship

Anonymous — Thu, 01 Aug 2024 15:45:51 +0000

ChBE PhD student awarded Quad Fellowship Anonymous (not verified) Thu, 08/01/2024 - 09:45

Todd Whittaker, a Chemical and Biological Engineering PhD student in the Holewinski and Musgrave research groups, has been awarded the Quad Fellowship, a prestigious fellowship for citizens of the "Quad countries" (USA, Japan, India and Australia). Whittaker, a citizen of Australia, was one of 50 students selected as a 2024 Quad Fellow. The fellowship is administered by the Institute of International Education (IIE), a global not-for-profit organization managing prestigious scholarship and fellowship programs.

The Quad Fellowship aims to build connections among the next generation of scientists and technologists by fostering academic excellence and promoting cross-cultural understanding. The award will support Whittaker's research on catalytic phenomena in electrochemical devices such as fuel cells, electrolyzers and batteries. With the expected rapid increase in renewable electricity, Whittaker's research aims to develop rigorous experimental and theoretical frameworks to understand what drives reactivity at electrochemical interfaces and leverage those insights to design superior catalysts for a more sustainable future.

"I am extremely proud to represent Australia as a scientist at this scale," Whittaker said. "I come from a small town in rural Australia, where this career path is relatively uncommon. It excites me to know that my research, which is mostly directed at engineering renewable energy systems, will contribute to the long-term protection of vulnerable rural communities like mine."

Now in its second year, the Quad Fellowship supports exceptional master's and doctoral students pursuing studies in science, technology, engineering and mathematics (STEM) in the United States. Initially supporting students from the four Quad countries, the program has expanded this year to include students from various ASEAN countries.

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Assistant Professor Adam Holewinski approved for tenure

Anonymous — Thu, 11 May 2023 22:27:03 +0000

Assistant Professor Adam Holewinski approved for tenure Anonymous (not verified) Thu, 05/11/2023 - 16:27

Congratulations to Adam Holewinski, assistant professor of chemical and biological engineering, for being approved for tenure at the April 28 University of Colorado Boulder Board of Regents meeting. Holewinski leads the Holewinski Research Group, which focuses on “efficient, renewable and environmentally benign catalytic processes for the production of energy, as well as commodity and fine chemicals.” Beginning in late August, he will spend five months as a 2023 Fulbright Scholar at the Technical University of Denmark (DTU), conducting research, advising graduate students and giving research talks at various universities in Denmark.

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Adam Holewinski receives Fulbright to synthesize renewable fuels and chemicals

Anonymous — Sun, 09 Apr 2023 16:05:15 +0000

Adam Holewinski receives Fulbright to synthesize renewable fuels and chemicals Anonymous (not verified) Sun, 04/09/2023 - 10:05

Susan Glairon

Adam Holewinski, an assistant professor of chemical and biological engineering, has been awarded a prestigious fellowship to research efficient ways to produce sustainable chemical products and fuels using electricity from renewable sources like solar and wind.

Beginning in late August, Holewinski will spend five months as a 2023 Fulbright Scholar at the Technical University of Denmark (DTU), conducting research, advising graduate students and giving research talks at various universities in Denmark. Holewinski also hopes to establish ongoing collaborations between ��Ҵ�ý�ƽ�� and DTU, and possibly with other Danish institutions, including student exchanges.

“It’s a new experience, both professionally getting to explore some new research avenues and personally getting to spend five months in Europe,” Holewinski said. “I haven’t been out of the country much, so I am looking forward to it.”

The Fulbright U.S. Scholar Program offers opportunities to teach, research and conduct professional projects in more than 135 countries and to expand American partnerships and share knowledge. Recipients are selected on the basis of academic and professional achievement, as well as a demonstrated leadership in their field.

A wide array of new opportunities

For Holewinski, the Fulbright award is an opportunity to advance the work of the Holewinski Research Group, which focuses on “efficient, renewable and environmentally benign catalytic processes for the production of energy, as well as commodity and fine chemicals.”

Producing chemical products like fuels, plastics and fertilizers very often requires a catalyst, a substance that speeds up chemical reactions and reduces the amount of energy used to drive the reaction. Usually this energy comes from heat derived from burning fossil fuels, but Holewinski’s research involves using electricity from renewable sources.

His research also involves designing new catalysts to convert renewable carbon sources such as sugars from biomass (e.g., plants or algae) into fuels that could replace fossil fuels and reduce harmful emissions. These renewable carbon sources can also be converted (using new catalysts) to create the organic building blocks needed to make sustainable, recyclable plastics.

Holewinski said that combining renewable electricity, catalysis and sustainable raw materials such as bio-carbon "introduces a wide array of new opportunities." For example, one common area of electro-catalysis research relates to splitting water into hydrogen and oxygen gases. Hoelwisnski said that it is theoretically possible to swap out the oxygen-producing reaction with something that generates other useful chemicals as reactions that produce each gas occur in separate compartments of an electrochemical cell.

"Hydrogen is valuable, as it can be used as a 'clean' fuel, but there is not a commensurate need for synthetic oxygen," Holewinski said.

His research involves developing the right catalyst to replace the reaction that makes oxygen with one that makes a high-value chemical, such as plant-based building blocks for plastics. Another research direction involves “rewiring” the oxidation catalyst to turn water into hydrogen peroxide, which is later used in a variety of chemical syntheses, as well as for water treatment and bleaching in the pulp and paper industry.

Overall, Holewinski says his research could lead to a decrease in emissions during the manufacturing of chemical products. The more efficiently it can be done with less infrastructure, such as requiring fewer solar panels to create the electricity, the closer his research will be to competitively creating alternatives to fossil fuels.

But, he says, his research is a long way from producing results that would improve the life of the average person.

“It would be very unrealistic to say I am going to go somewhere for five months and come out with a commercial product that will change the world,” Holewinski said. “The realistic hope is that we can bring some new methods and techniques to my research group so we can elevate the work we are doing.”

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Adam Holewinski receives Provost’s Faculty Achievement Award for pre-tenure faculty

Anonymous — Wed, 14 Dec 2022 22:46:32 +0000

Adam Holewinski receives Provost’s Faculty Achievement Award for pre-tenure faculty Anonymous (not verified) Wed, 12/14/2022 - 15:46

Adam Holewinski, assistant professor of chemical and biological engineering, received a Provost’s Faculty Achievement Award for pre-tenure faculty during Fall Convocation for his article, “Selective Interactions between Free-Atom-like d-States in Single-Atom Alloy Catalysts and Near-Frontier Molecular Orbitals.”

The annual Fall Convocation Awards and Presentations Celebrating Faculty Achievements on Oct. 13 honored 95 faculty members for their excellence in teaching, scholarship, leadership and service. Faculty recently tenured or promoted and faculty receiving the Provost's Achievement Award were recognized.

More information

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Adam Holewinski receives $750,000 DOE grant for carbon-neutral hydrogen research

Anonymous — Wed, 12 Oct 2022 22:19:57 +0000

Adam Holewinski receives $750,000 DOE grant for carbon-neutral hydrogen research Anonymous (not verified) Wed, 10/12/2022 - 16:19

Assistant Professor Adam Holewinski received a three-year, $750,000 grant from the US Department of Energy for his research, entitled "Electrochemically-assisted dehydrogenation reactions for dual-electrode hydrogen evolution." The DOE's Office of Basic Energy Sciences grant, which began in September and ends in August 2025, advances clean energy technologies and low-carbon manufacturing.

Holewinski's grant research centers on water electrolysis, which produces H₂ (hydrogen)and O₂(oxygen); his research involves replacing the reaction that makes O₂ with something more valuable to improve the overall value and drive down cost of H₂production. His research looks in particular at reactions that upgrade biomass-derived organics into useful chemicals, while co-producing more hydrogen as a byproduct.

Abstract
Electrochemically-Assisted Dehydrogenation Reactions for Dual-Electrode Hydrogen Evolution

Water electrolysis is a frontrunner technology for carbon-neutral hydrogen, as it can be efficiently coupled to renewable electricity. Conventional electrolysis generates H2 at the cathode of an electrochemical cell (hydrogen evolution reaction, HER), and O2 at the anode (oxygen evolution reaction, OER). Each H2 molecule generated requires passage of 2 electrons at a thermodynamic minimum potential of 1.23 V at standard conditions, with overpotential losses leading to higher applied voltages in practice. This proposal explores value-adding oxidation chemistries that can replace the OER while co-generating¬ H2 at the anode (in addition to the cathode). Despite the fact that electrolyzer anodes operate at potentials that can oxidize the hydrogen molecule, “anodic H2” can be generated if the reactant at the anode possesses hydrogen moieties with higher chemical potential than H2. This is the case for anodic valorization of several renewable organic molecules, including biomass-derived aldehydes. During (electro)oxidation of these compounds, control over chemical (pure thermally driven) vs. electrochemical steps allows for adsorbed hydrogen (H*) formed in the process to preferentially desorb from the electrode by recombination (H*+H*-->H2) rather than by discharge (H*-->H++e-), which occurs during conventional electrolysis. For aldehyde-to-acid conversion, the recombination route, labeled here “electrochemically-assisted dehydrogenation” (EAD), can generate one mole of H2 (in total, both electrodes) per mole of electrons transferred. The process is accessible with cell voltages on the order of a few hundred millivolts, lowering energy consumption significantly in comparison to standard electrolysis.

Work will center around three scientific aims. The first is to understand, at a fundamental level, the surface reactivity requirements for the established alkaline EAD of aldehydes. The composition of alloy catalyst structures will be systematically varied to establish how the electronic structure of surfaces can be altered to accelerate this process. We will then shift focus to expanding the scope of substrates—in particular, achieving EAD of alcohol functional groups. This will be facilitated by synthesis of catalysts with atomically-dispersed reactive sites that can perform dehydrogenation without cleaving C-C bonds. Finally, material constraints will be investigated for achieving EAD under conditions of high H2 pressure and low pH, more applicable to PEM electrolysis. Detailed understanding will be developed by operando spectroscopic tools coupled to rigorous kinetic measurements and computational modeling. The overarching goal is a mastery of the factors that permit and facilitate EAD to create opportunities for process intensification of water electrolysis."

Assistant Professor Adam Holewinski received a three-year, $750,000 grant from the US Department of Energy for his research in water electrolysis. His research looks in particular at reactions that upgrade biomass-derived organics into useful chemicals, while co-producing more hydrogen as a byproduct.

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High-Sensitivity Low-Energy Ion Scattering Spectrometer will be a transformative resource for materials research at ��Ҵ�ý�ƽ��

Anonymous — Fri, 01 Apr 2022 15:52:48 +0000

High-Sensitivity Low-Energy Ion Scattering Spectrometer will be a transformative resource for materials research at ��Ҵ�ý�ƽ�� Anonymous (not verified) Fri, 04/01/2022 - 09:52

Jonathan Raab

��Ҵ�ý�ƽ�� East Campus is now home to the High-Sensitivity Low-Energy Ion Scattering (HS-LEIS) Spectrometer, a tool researchers from across the Rocky Mountain region will use for advanced materials characterization and analysis.

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Holewinski wins Scialog Award for negative emissions project

Anonymous — Mon, 24 Jan 2022 23:29:44 +0000

Holewinski wins Scialog Award for negative emissions project Anonymous (not verified) Mon, 01/24/2022 - 16:29

Eight cross-disciplinary teams working to advance fundamental science in the removal of greenhouse gases from Earth’s atmosphere and oceans will receive awards totaling $1,210,000 in the second year of the Scialog: Negative Emissions Science initiative, sponsored by Research Corporation for Science Advancement and the Alfred P. Sloan Foundation, with additional support from the Climate Pathfinders Foundation. The 22 individual awards of $55,000 will go to 20 researchers from a variety of institutions in the United States and Canada. Among the awardees is Adam Holewinski, Chemical & Biological Engineering, University of Colorado Boulder.

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Holewinski

CHBE students shine with prestigious awards and honors

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ChBE PhD student awarded Quad Fellowship

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Assistant Professor Adam Holewinski approved for tenure

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Adam Holewinski receives Fulbright to synthesize renewable fuels and chemicals

A wide array of new opportunities

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Adam Holewinski receives Provost’s Faculty Achievement Award for pre-tenure faculty

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Adam Holewinski receives $750,000 DOE grant for carbon-neutral hydrogen research

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High-Sensitivity Low-Energy Ion Scattering Spectrometer will be a transformative resource for materials research at ���Ҵ�ý�ƽ������

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Holewinski wins Scialog Award for negative emissions project

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High-Sensitivity Low-Energy Ion Scattering Spectrometer will be a transformative resource for materials research at ��Ҵ�ý�ƽ��