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2024 TEAM PV Meeting

Daniel Morton — Tue, 12 Nov 2024 00:02:15 +0000

2024 TEAM PV Meeting Daniel Morton Mon, 11/11/2024 - 17:02

In November of 2024 RASEI hosted the 2024 TEAM PV Consortium meeting. This event brought together researchers from ��ý�Ļ��Ʒ, NREL, Humboldt University and Hemholtz-Zentrum Berlin.

The goals of this workshop was to develop nascent collaborative connections, discuss the best practices for collecting, sharing, and analyzing data around the parametrization of perovskites.

RASEI Fellows Steve Barlow, Joe Berry, Seth Marder, Mike McGehee, Laura Schelhas, and Mike Toney participated in the event that included many students and researchers both from Colorado and Germany.

11/11/2024

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RASEI Fellows receive 2024-2025 Deloitte and CIC Research Awards

Daniel Morton — Mon, 11 Nov 2024 21:11:59 +0000

RASEI Fellows receive 2024-2025 Deloitte and CIC Research Awards Daniel Morton Mon, 11/11/2024 - 14:11

Daniel Morton

The Climate Innovation Collaboratory (CIC) was launched as a collaborative venture between ��ý�Ļ��Ʒ and Deloitte, with the goal of translating cutting-edge climate research and data into meaningful climate solutions for businesses, organization, government agencies and communities.

This year three RASEI Fellows were recipients of awards to develop long-term engagements with Deloitte and expand access to critical climate data analytics, research and technology. These projects explore how the renewable energy grid can be built out to offer clean solutions for AI data centers and greater adoption of electric vehicles.

RASEI Fellow Bri-Mathias Hodge is the principal investigator for a project titled “Interconnection Planning for Large Data Centers”. The goal is to develop a system planning tool to automate the initial processes needed for utilities to identify generation expansion, network reinforcement, and asset upgrades to meet the demands of new data centers. This work will help utilities, grid operators, and data center operators to deal with the expansion in the number and energy usage of data centers at the state, regional, and international levels. With the rise of AI, seen as the industrial revolution of the 21^st century, better understanding of how and where to place the data centers that are the engines driving this transformation will be critical.

RASEI Fellow Kyri Baker is the principal investigator for a project titled “Viability of long- and short-duration energy storage for AI Data Centers: Carbon, Cost, and Reliability”. This project combines the benefits of short and long duration energy storage to increase uptime, improve renewable energy utilization, and lower payback periods for AI data centers. By developing an optimization framework for data centers energy storage that leverages price and renewable energy forecasts to co-optimize cost, carbon, and resilience. Creation of a tool that optimizes data energy storage would have significant relevance to commercial and government clients seeking to lower data center consumption.

RASEI Fellow Stephanie Weber is the principal investigator for a project titled “EV Infrastructure and local economic spillovers”. This project seeks to understand both how the construction of public electric vehicle charging infrastructure affects the surrounding areas as well as the tradeoffs associated with prioritizing equity in public charging locations. This will help inform state and national governments in the deployment of EV charging stations, to help incentivize EV adoption, and better understand the non-monetary impact of building EV chargers.

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Mourning the loss of Jeffrey Cameron

Daniel Morton — Fri, 08 Nov 2024 22:30:43 +0000

Mourning the loss of Jeffrey Cameron Daniel Morton Fri, 11/08/2024 - 15:30

Jeffrey Cameron, Associate Professor in the Biochemistry Department and RASEI Fellow died on September 25 in Boulder County, Colorado. A memorial for Jeff was held on Friday, October 11 at Rundus Funeral Home in Broomfield, CO.

RASEI wishes to recognize the person and life that Jeff embodied, his valuable contributions to our community, as well as his enthusiasm, kindness, friendship, and collegiality.

A GoFundMe page has been set up to collect donations in support of Jeff’s four children and wife at this difficult time. Please consider donating and/or sharing the link.

GoFundMe Page for Jeff's Family

Daily Camera Article

Obituary

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RASEI Innovators awarded Lab Venture Challenge Prizes

Daniel Morton — Mon, 28 Oct 2024 20:59:29 +0000

RASEI Innovators awarded Lab Venture Challenge Prizes Daniel Morton Mon, 10/28/2024 - 14:59

Daniel Morton

Fourteen teams from across the University of Colorado competed for a combined total of $1.25M in startup funding grants as part of the 2024 Lab Venture Challenge (LVC).

Judges from across the network heard Shark-Tank-Style pitches across two evenings, one for innovations in biosciences, and another for physical sciences and engineering. Two RASEI Fellows, Gregor Henze and Adam Holewinski were members of two of the successful teams, being awarded a total of $250k in startup funding ($125k each).

Find out more about EcoValeric Innovations

��ý�Ļ��Ʒ EcoValeric Innovation's website

EcoValeric Innovations

RASEI Fellow Adam Holewinski was the lead for EcoValeric Innovations, built around an electrochemical process that converts biomass-based building blocks (levulinic acid) into commodity chemicals (4-hydroxyvaleric acid (HVA)), versatile intermediates for producing biodegradable plastics, biofuels and green solvents. This scalable, renewable process has the potential to significantly reduce the reliance on fossil fuels in a sustainable fashion. Also on the EcoValeric team were CEO Roberta Leão and CTO Will Lucas.

Find out more about Whisper Energy

��ý�Ļ��Ʒ Whisper Energy's website

Whisper Energy

RASEI Fellow Gregor Henze was the lead for Whisper Energy, built around the development of a wireless, battery-free sensor platform for smart buildings. Using machine learning to cut energy consumption by >30%, the platform can provide real-time data to optimize energy use, reduce emissions, and drive toward more energy efficient homes and commercial buildings. Developed through an initial $2M ARPA-E grant, it advances zero emissions in an economic and efficent manner. Gregor was supported by CEO Galen Williams and Technical lead Gerry Conroy.

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RASEI Fellows Collaboration in CHOISE Twists Halide Perovskites From a Distance

Daniel Morton — Fri, 25 Oct 2024 22:31:11 +0000

RASEI Fellows Collaboration in CHOISE Twists Halide Perovskites From a Distance Daniel Morton Fri, 10/25/2024 - 16:31

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RASEI Researchers unlock a 'new synthetic frontier' for quantum dots

Daniel Morton — Thu, 24 Oct 2024 19:50:17 +0000

RASEI Researchers unlock a 'new synthetic frontier' for quantum dots Daniel Morton Thu, 10/24/2024 - 13:50

Lauren Scholz

Read the Full Paper here

University of Chicago Press Release

In a breakthrough for nanotechnology, researchers have discovered a new way to synthesize quantum dot nanocrystals using molten salt as a medium. Traditional methods to create these materials required organic solvents, which cannot withstand the high temperatures needed for certain semiconductor materials, particularly those combining elements from groups III and V on the periodic table. By using superheated molten sodium chloride, scientists were able to synthesize these semiconductor nanocrystals, paving the way for improved applications in fields like quantum computing, LED lighting, and solar technology.

Led by a team from the University of Chicago and collaborating institutions, including RASEI Fellows Sadegh Yazdi and Gordana Dukovic, this novel method also opens new avenues for materials science by enabling the synthesis of previously inaccessible nanocrystal compositions. The technique addresses long-standing challenges by providing a high-temperature environment without degrading the materials. Researchers hope this advance will contribute to new types of devices and materials, marking a significant expansion in the range of accessible quantum dot technologies.

For a more information, please see the press release from The University of Chicago.

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Renewable Energy: Where are the Jobs? Panel Discussion

Daniel Morton — Tue, 22 Oct 2024 21:36:58 +0000

Renewable Energy: Where are the Jobs? Panel Discussion Daniel Morton Tue, 10/22/2024 - 15:36

Daniel Morton

Download the Flyer

On October 22, 2024, RASEI partnered with Colorado WRISE to host a panel discussion exploring careers in the renewable energy sectors.

The Colorado Women of Renewable Industries and Sustainable Energy, or Colorado WRISE, is a local chapter of the nationwide organization that seeks to change our energy future through the collective power of community. The panel consisted of seven leaders from across a range of renewable sectors, from national lab, through utilities and non-profits, to power systems.

The panelists introduced themselves with a short biography and answered questions on everything from how they made their way into careers in the renewable sector, to the future of careers in this growing space.

Thank you to all the panelists and organizers!

10/22/2024

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POSE Fall 2024 Kickoff Workshop

Daniel Morton — Mon, 07 Oct 2024 22:43:24 +0000

POSE Fall 2024 Kickoff Workshop Daniel Morton Mon, 10/07/2024 - 16:43

Daniel Morton

In early October of 2024, RASEI hosted the kickoff workshop for POSE, a new community being brought together to address some of the most critical challenges we face to do with plastics and polymers.

Polymer Solutions for the Environment, or POSE, seeks to establish a Center that will bring together expertise around the development of a circular polymer economy.

Plastics and polymers are critical materials in the modern age, forming the building blocks of everything from electronics to packaging, but this versatility comes with a cost, namely the waste and infiltration of the environment by microplastics.

This workshop brought together thought leaders in the polymer sector, from a cross section of academic, national lab and industrial organizations. The goal was to explore how best the POSE community can build a program that complements existing efforts in the field to drive the science and policy forward.

Three areas of focus were discussed, including the development of a circular polymer economy, the development of polymers that are needed for a just clean energy transition, and the integration of the science and technology research with policy, economics and social sciences.

It was a great meeting with more than 60 participants who came together to discuss ideas, present their research and approaches, and help shape the goals and directions of this nascent community.

10/07/2024

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Discovery could lead to longer-lasting EV batteries, hasten energy transition

Anonymous — Thu, 12 Sep 2024 06:00:00 +0000

Discovery could lead to longer-lasting EV batteries, hasten energy transition Anonymous (not verified) Thu, 09/12/2024 - 00:00

Mike Toney explores how lithium-ion batteries self-discharge to improve future designs

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Probing intermediate configurations of oxygen evolution catalysis across the light spectrum

Anonymous — Mon, 09 Sep 2024 06:00:00 +0000

Probing intermediate configurations of oxygen evolution catalysis across the light spectrum Anonymous (not verified) Mon, 09/09/2024 - 00:00

Mapping a route for more efficient production of sustainable fuels

Read the Article

Find out more about CEDARS

This perspective article, led by RASEI Fellow Tanja Cuk, brings together researchers at six research institutions from across the United States, to describe how advances in spectroscopy and theory can map out the elementary details of the oxygen evolution reaction, a critical reaction to enable the production of fuels from sustainable energy sources.

The oxygen evolution reaction (or OER for short), is a critical step in the creation of sustainable, decarbonized fuels, such as hydrogen. Water (H₂O) can be split into hydrogen (H₂) and oxygen (O₂) using electricity. This process pulls apart strong chemical bonds – it takes a lot of energy! If we can better understand this process, we can make it more efficient, which will enable us to create clean fuels and store renewable energy, like solar and wind power, to smooth out variations in the supply. Specifically, the OER is the half-reaction that occurs at the anode (positive electrode) during electrolysis, in which the water molecules are oxidized to produce oxygen gas (O₂), protons (H⁺), and electrons. Though this sounds straightforward, the process involves multiple intermediates, or steps, many of which are currently poorly defined. Understanding this complex process requires a collaborative approach. Jin Suntivich (Cornell University) and Dhananjay Kumar (North Carolina A&T) bring expertise in making advanced materials and electrochemistry, Geoffroy Hautier (Dartmouth College) and Ismaila Dabo (Carnegie Mellon University) develop theoretical models, and Ethan Crumlin (Lawrence Berkeley National Laboratory), Tanja Cuk (��ý�Ļ��Ʒ), and Jin Suntivich use X-ray and optical spectroscopy to visualize the small molecular intermediates.

Imagine that you have to drive from Denver, Colorado, to Greensboro, North Carolina. If someone gave you a map that only showed your starting location and destination, it would be quite difficult. You would know that you had to head east, but you wouldn’t know what roads to take, which were the fastest moving, or where any good stops were along the way. You could probably get there, but you would get lost a few times on the way, use some of the slow roads, and maybe be stuck staying in places you didn’t want to. It would be a very inefficient journey. Now compare this to using a modern navigation app, one that has details of every road along the way, the speed limits, the traffic levels, where all the gas stations are, the good restaurants and coffee shops, and good places to stop for the night. You would be far more efficient (and happy) using the navigation app.

It is the same with a chemical reaction. If you understand the elementary steps of a reaction, you can design a system that is more efficient and effective at getting to the final product. Creating this ‘map’ for the OER is a central mission of the Center for Electrochemical Dynamics and Reactions on Surfaces (CEDARS). CEDARS is a Department of Energy funded Energy Frontier Research Center (EFRC), that brings together twelve research groups at five universities and two DOE national labs across the chemical, materials, and computational sciences. CEDARS is headed by Director Dhananjay Kumar at North Carolina A&T, with a strong program in thin materials research. This is the first EFRC awarded to an HBCU as a lead institution in the country. There are several challenges that need to be overcome before the OER process can be scaled up. Currently OER is expensive, energy intensive and not reliable for continuous long-term operation. OER requires large inputs of electricity, the catalysts used in the reaction are based on scarce materials that are unstable under long-term exposure to the harsh conditions present in the OER process. By better understanding the elementary steps of the OER reaction researchers can design cheaper, more efficient processes.

RASEI Fellow, and Associate Director of CEDARS Tanja Cuk explains that there have been a series of proposed oxygen-related intermediates (e.g. OH*, O*, O-O), but it has been hard to capture experimental evidence for them and the elementary steps that create them. “The article is a perspective on how to get at the intermediates and their dynamics within the buried electrode-electrolyte interface. The approach involves model crystalline materials, targeted spectroscopies to isolate the intermediates, and theoretical investigations that predict how they appear in the electrochemistry and the spectroscopy. We also use materials that bind the intermediates at different strengths, so that they appear statically and transiently.” This fundamental and basic energy sciences approach combines expertise from across CEDARS bringing together computational theoretical modeling, materials synthesis, and spectroscopy. The diversity of institutions involved has already provided for many student and postdoctoral exchanges that further deepen the background of the team and broaden the scope of the research. Just last month the Center Director and his graduate student visited NREL and CU to test the samples made at NCAT.

Precise control of the materials under investigation is required for effective characterization and theoretical modeling. Dhananjay Kumar, Jin Suntivich, and collaborators within CEDARS use a process called epitaxial layer deposition, a procedure where a thin crystalline layer is grown on top of a substrate. For these investigations the epitaxial layers are the OER catalysts made from ruthenium and titanium oxides that are then tested electrochemically. Geoffroy Hautier is a materials theorist who uses computational models to calculate the structure and defects that intermediates create in the materials and their impacts on x-ray and optical spectra. Ismaila Dabo takes these configurations and creates a model of the electrical and water environment around the electrode interface, describing a more realistic environment for the OER processes. To provide a more detailed understanding, the theoretical models are tested and refined based on feedback from advanced spectroscopic observations. The spectroscopies highlight static spectra of intermediate coverages and transient intermediates during OER. Jin Suntivich brings expertise in combining in-situ electrochemistry with non-linear optical techniques; Ethan Crumlin develops in-situ and time-resolved x-ray spectroscopies; Tanja Cuk combines in-situ electrochemistry with ultrafast optical spectroscopy. Integrating the computational advances with the experimental observations provides a powerful toolkit. Accurate interpretation of the spectral observations relies on the findings from the computational techniques.

While the ‘map’ for the OER has not been solved, this interdisciplinary and fundamental approach to interrogating the OER process is providing invaluable insights into how different catalysts bind to the intermediates and how this impacts different reaction pathways. By characterizing the nature of the intermediates bound to the catalyst an understanding of their equilibrium behavior during the OER process can be developed. The CEDARS team are already thinking about next steps for this powerful approach. These include understanding the non-equilibrium dynamics of these intermediates by fully time resolved x-ray and optical probes and investigating more complex material structures. The observations from these ‘in-process’ reactions will help define the roadmap to a more efficient and cost-effective approach to generate clean fuels from renewable energy sources.

NATURE ENERGY, 2024 | https://doi.org/10.1038/s41560-024-01583-x

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