UH's winning team, ECHO, or Electrochemical CO2 Harvester from the Ocean, was awarded a $25,000 award from Chevron. Photo courtesy of UH

UH Energy named its second Innovation Commercialization Competition winners earlier this month with the goal of identifying promising ideas within the university that could have an impact in the energy transition.

The winning team, ECHO, or Electrochemical CO2 Harvester from the Ocean, was awarded a $25,000 award from Chevron, the event's sponsor, after presenting their pitch in front of a live Houston audience earlier this month.

“You don’t see the full impact of a good idea until someone figures out a way to convert it to a usable product or service that has value, brings it to market and makes money off of it—this is what makes it a sustainable business,” S. Radhakrishnan, the competition's coordinator and a retired University of Houston business professor, says in a statement. “To have a successful energy transition, we need many innovative ideas to be commercialized.”

Eighteen teams of University of Houston graduate students competed in the months-long competition and focused on projects related to carbon capture, carbon sequestration and lithium extraction from geothermal operations. Each team received a $2,000 stipend and mentoring throughout the competition.

The ECHO team was named the UH-Chevron Energy Transition Energy Innovation Challenge Winner. Comprised of four UH environmental engineering doctoral students (Prince Aleta, Ahmad Hassan, Mohsen Afshari and Abdelrahman Refale) and advised by Mim Rahimi, assistant professor of environmental engineering at the UH Cullen College of Engineering, the team pitched a membrane-less electrochemical process to capture carbon dioxide efficiently and sustainably. According to a statement from UH, the technology "seamlessly integrates with existing seawater intake infrastructure."

“As we’re from the STEM field, we normally work in lab environments, and I hear people say that what we’re working on has less commercial value and that it would take ages for them to commercialize,” Hassan adds in the statement. “This (competition) gave us the confidence and motivation to move forward.”

UH-based startup GeOME Analytics, led by UH's Moores Professor of Biology and Biochemistry and GeOME's president Preethi Gunaratne, was named the UH Energy Innovation Challenge Winner. The team pitched a new method for reservoir drainage diagnostics that uses the company's personalized DNA biomarkers. Other team members include Marcus Phillips, GeOME's vice president; postdoctoral researchers Partha Bhagavanthula and Nuwan Acharige; and UH graduate students, Micah Castillo, Dishan Adhikari and Shiyanth Thevasagayampillai.

Additional finalists included:

  • Team LiQuidium – Pitched lithium extraction from geothermal brines
  • Aldrogen – Pitched an A.I.-powered solution to improving grid resiliency while reducing emissions
  • MacAlgae – Pitched an environmentally conscious method of mycelium production

“The technology that was on display was fascinating,” Liz Schwarze, vice president of global exploration for Chevron, said in a statement. “I’m optimistic we can continue to grow this program, because it’s all about creating a culture where we can pursue our scientific and engineering dreams while partnering with business and entrepreneurship along the way to spinoff value to our community faster.”

Last month, UH and Chevron also partnered up to name its first-ever cohort of UH-Chevron Energy Graduate Fellows. The PhD and doctoral students will each receive a one-year $12,000 fellowship, along with mentoring from experts at UH and Chevron.
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Engie signs deal to supply wind power for Texas data center

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Houston-based Engie North America, which specializes in generating low-carbon power, has sealed a preliminary deal to supply wind power to a Cipher Mining data center in Texas.

Under the tentative agreement, Cipher could buy as much as 300 megawatts of clean energy from one of Engie’s wind projects. The financial terms of the deal weren’t disclosed.

Cipher Mining develops and operates large data centers for cryptocurrency mining and high-performance computing.

In November, New York City-based Cipher said it bought a 250-acre site in West Texas for a data center with up to 100 megawatts of capacity. Cipher paid $4.1 million for the property.

“By pairing the data center with renewable energy, this strategic collaboration supports the use of surplus energy during periods of excess generation, while enhancing grid stability and reliability,” Engie said in a news release about the Cipher agreement.

The Engie-Cipher deal comes amid the need for more power in Texas due to several factors. The U.S. Energy Information Administration reported in October that data centers and cryptocurrency mining are driving up demand for power in the Lone Star State. Population growth is also putting pressure on the state’s energy supply.

Last year, Engie added 4.2 gigawatts of renewable energy capacity worldwide, bringing the total capacity to 46 gigawatts as of December 31. Also last year, Engie signed a new contract with Meta (Facebook's owner) and expanded its partnership with Google in the U.S. and Belgium.

Houston researchers make headway on developing low-cost sodium-ion batteries

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A new study by researchers from Rice University’s Department of Materials Science and NanoEngineering, Baylor University and the Indian Institute of Science Education and Research Thiruvananthapuram has introduced a solution that could help develop more affordable and sustainable sodium-ion batteries.

The findings were recently published in the journal Advanced Functional Materials.

The team worked with tiny cone- and disc-shaped carbon materials from oil and gas industry byproducts with a pure graphitic structure. The forms allow for more efficient energy storage with larger sodium and potassium ions, which is a challenge for anodes in battery research. Sodium and potassium are more widely available and cheaper than lithium.

“For years, we’ve known that sodium and potassium are attractive alternatives to lithium,” Pulickel Ajayan, the Benjamin M. and Mary Greenwood Anderson Professor of Engineering at Rice, said in a news release. “But the challenge has always been finding carbon-based anode materials that can store these larger ions efficiently.”

Lithium-ion batteries traditionally rely on graphite as an anode material. However, traditional graphite structures cannot efficiently store sodium or potassium energy, since the atoms are too big and interactions become too complex to slide in and out of graphite’s layers. The cone and disc structures “offer curvature and spacing that welcome sodium and potassium ions without the need for chemical doping (the process of intentionally adding small amounts of specific atoms or molecules to change its properties) or other artificial modifications,” according to the study.

“This is one of the first clear demonstrations of sodium-ion intercalation in pure graphitic materials with such stability,” Atin Pramanik, first author of the study and a postdoctoral associate in Ajayan’s lab, said in the release. “It challenges the belief that pure graphite can’t work with sodium.”

In lab tests, the carbon cones and discs stored about 230 milliamp-hours of charge per gram (mAh/g) by using sodium ions. They still held 151 mAh/g even after 2,000 fast charging cycles. They also worked with potassium-ion batteries.

“We believe this discovery opens up a new design space for battery anodes,” Ajayan added in the release. “Instead of changing the chemistry, we’re changing the shape, and that’s proving to be just as interesting.”