Houston researchers develop catalyst for emission-free hydrogen production using light instead of heat

SWITCH FLIPPED

Researchers created a light-driven catalyst for hydrogen production, offering an emission-free alternative to traditional methods. Photo by Jeff Fitlow/Rice University

Researchers at Rice University have developed a catalyst that could render steam methane reforming, or SMR, entirely emission-free by using light rather than heat to drive the reaction.

The researchers believe the work could prove to be a breakthrough for extending catalyst lifetimes. This will improve efficiencies and reduce costs for a number of industrial processes that are affected by a form of carbon buildup that can deactivate catalysts called coking.

The new copper-rhodium photocatalyst uses an antenna-reactor design. When it is exposed to a specific wavelength of light it breaks down methane and water vapor without external heating into hydrogen and carbon monoxide. The importance of this is it is a chemical industry feedstock that is not a greenhouse gas. Rice’s work also shows that the antenna-reactor technology can overcome catalyst deactivation due to oxidation and coking by employing hot carriers to remove oxygen species and carbon deposits, which effectively regenerates the catalyst with light.

The new SMR reaction pathway build off a 2011 discovery from Peter Nordlander, Rice’s Wiess Chair and Professor of Physics and Astronomy and professor of electrical and computer engineering and materials science and nanoengineering, and Naomi Halas. They are the authors on the study about the research that was published in Nature Catalysis. The study showed that the collective oscillations of electrons that occur when metal nanoparticles are exposed to light can emit “hot carriers” or high-energy electrons and holes that can be used to drive chemical reactions.

“This is one of our most impactful findings so far, because it offers an improved alternative to what is arguably the most important chemical reaction for modern society,” Norlander says in a news release.

The research was supported by Robert A. Welch Foundation (C-1220, C-1222) and the Air Force Office of Scientific Research (FA9550-15-1-0022) with the Shared Equipment Authority at Rice providing data analysis support.

“This research showcases the potential for innovative photochemistry to reshape critical industrial processes, moving us closer to an environmentally sustainable energy future,” Halas adds.

Hydrogen has been studied as it could assist with the transition to a sustainable energy ecosystem, but the chemical process responsible for more than half of the current global hydrogen production is a substantial source of greenhouse gas emissions.Hydrogen is produced in large facilities that require the gas to be transported to its point of use. Light-driven SMR allows for on-demand hydrogen generation,which researchers believe is a key benefit for use in mobility-related applications like hydrogen fueling stations or and possibly vehicles.

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This article originally ran on EnergyCapital.

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Houston airport cut traffic congestion by 99 percent during peak travel season

A Soaring Improvement

Years of physical improvements and other initiatives paid off this holiday season at George Bush Intercontinental Airport (IAH). Despite seeing a record number of flyers, traffic congestion at the airport dropped by an astounding amount.

“Our goal was to deliver a seamless journey during one of the busiest travel seasons of the year,” said Jim Szczesniak, director of aviation for Houston Airports. “The results show that our investments in infrastructure, technology and customer service are paying off. We are proud of our team and the traveling public for working together to make this holiday season a success. Our coordinated efforts between Houston Airports and Houston Police kept traffic flowing smoothly at our departure curbs while passengers followed instructions and used cell phones lots effectively. These efforts, paired with infrastructure improvements like the new International Arrivals Curb and expanded Terminal C garage entrance, demonstrate our commitment to delivering world-class service and efficiency.”

The holiday flying season officially lasts from December 20 to January 6. Data from Houston airports shows that between December 20 and December 30, 1.7 million passengers passed through IAH, a 21 percent increase over the same period in 2023. However, the number of heavy traffic periods fell 90 percent and periods of severe traffic fell 99 percent. To put it another way, passengers at IAH spent 4.4 hours in severe traffic during Christmas 2023. This past Christmas, it was just 2 minutes, an astounding reduction.

This was accomplished with the long-awaited new IAH International Arrivals Curb, which opened for public use on December 14. The new arrivals curb features seven lanes for dedicated drop-off and pick-up, greatly increasing the places for passengers to enter and exit the airport. IAH also opened the previously closed entry roadway lane before Thanksgiving, further reducing traffic snarl.

For those leaving their cars at the airport, a new cashless, automated system was built at HAS garages and ecoparks. New curbside agents were also hired, and Houston police helped direct traffic during the stressful and busy time.

“Our focus is always on providing a safe, stress-free experience,” said Kelly Woodward, chief operating officer for Houston Airports. “These upgrades allowed us to accommodate record passenger numbers while keeping traffic flowing. It’s a win for travelers and our city.”

IAH will continue to improve in 2025 as the new International Central Processor terminal comes fully online. As IAH becomes one of the main Gateways to Latin and South America, it will continue to serve the increasing number of flyers heading south of the border. Some time in 2025, 11 new lanes will open on the upper level, keeping traffic moving briskly.

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This story originally appeared on our sister site, CultureMap.com.

Houston construction tech tool acquires Y Combinator-backed co.

M&A moves

A Houston-based platform that connects skilled electricians with top electrical contractors has made a strategic acquisition.

Buildforce announced it has acquired Ladder, which is a Y Combinator-backed, technology-enabled construction labor marketplace.

The acquisition is part of Buildforce’s expansion plans into the southeastern U.S. and during a time of increased demand for skilled construction talent. Buildforce will work to leverage the Ladder customer base of over 200 customers across six states, as well as its extensive electrician network of over 10,000 pre-screened electricians, which is the largest in the Southeast.

In addition to expanding to Georgia with the Ladder acquisition, Buildforce launched in Arizona in October and will expand into several additional high-construction volume states in 2025. Also in October, Buildforce launched an easier product to manage a flexible time approval process with its Activity Log and Comments for Time Entries update. Contractors in these regions will be introduced to a more “integrated, technology-driven approach to talent acquisition and workforce management that drives efficiency and delivers higher quality project outcomes,” according to Buildforce.

“There are two major problems plaguing the construction labor market,” Moody Heard, co-founder and CEO of Buildforce, says in a news release. “One, the project-based nature of construction work means tradesmen are constantly ‘working themselves out of a job’, meaning high employee turnover. And two, the industry is experiencing a secular decline in the supply of tradesmen relative to surging demand.”

Ladder Founder and CEO Alex Stewart will continue on in a leadership role as a senior executive with Buildforce.

"I am incredibly excited to join the Buildforce team to further its expansion into new markets, while staying true to its mission of helping people in the construction trades find more security and fulfillment,” Stewart said in a news release. “Buildforce is at the forefront of workforce management for the construction industry, and I look forward to working with Moody and the rest of the talented Buildforce team to drive the business towards continued growth.”

Buildforce was founded in 2019 to help close the gap in the construction labor market that affected skilled tradespeople and contractors. In 2021, the company raised a $4 million round backed by Houston-based Mercury.

Houston innovator's new platform empowers wealth building for underserved communities

houston innovators podcast episode 269

For Phillip Yates, this year will be the year of launch. The attorney-turned-entrepreneur has been working on his fintech platform, Equiliberty, for years now, but come the first half of 2025, it's go time.

"We're going to release our technology in Q2 of this year, and we're looking to commercialize it by the end of this year," Yates says on the Houston Innovators Podcast.



The platform connects users with resources to build wealth. Yates, along with his co-founders, Rachel Howard and Cody Bailey, created the company with the mindset that people with lower financial means can take control of their own financial success — in a way that doesn't take away from anyone else.

"Really, (this year is) about how can we move into other markets that have seen what we can do if you celebrate culture, celebrate community, celebrate our differences — and more importantly give opportunities to be wealth builders. You can do this without taking from anyone else."

For years, Equiliberty has worked on convening the community in Houston. Yates, who's also the chairman of social impact innovation organization Impact Hub Houston, spearheaded Black Entrepreneurs Week and Latin Entrepreneurs Week — with more in the works.

"We are a fintech platform, and by convening the ecosystem, we are able to use data to tell the story to those financial institutions that want to get in front of their customers," he says. "All of these are bridges for those who may be unseen and overlooked to have a way into the economy ... and to have access to capital and resources they need to build wealth."

Yates shares on the show how he's evolved his legal career as a corporate and bankruptcy lawyer to entrepreneurship. Last fall, Yates won the award for Ecosystem Builder at the Houston Innovation Awards, an achievement he says validates his career to date.

"You can be a good doer in the world and have a heart that wants to solve a problem, but if you don't have the true experience or the resources to be able to invest in someone, I'm not saying you will be a disservice, but it might be counterintuitive," he says. "Through my experience as a lawyer, it's allowed me to be a greater service."

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