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

SWITCH FLIPPED

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.

Canadian construction co. enters Houston market amid Texas takeover

welcome to Hou

Construction tech startup Mercator.ai has entered the Houston area’s $22.3 billion commercial construction market with its AI-powered business development platform.

Calgary, Canada-based Mercator.ai says that although 80 percent of construction projects are secured through relationships, business development specialists spend about two-thirds of their time hunting for construction leads. The startup says its business development platform flips that script for the Houston area, Texas’ biggest commercial construction market.

“Houston’s construction community is known for innovation and relationship-building,” Chloe Smith, co-founder and CEO of Mercator.ai, says in a news release.

Mercator.ai says its expansion into the Houston market enables local general contractors, subcontractors, and providers of construction service to gain real-time insight into upcoming project opportunities.

“Houston’s sprawling growth and increasing competitive landscape make it ripe for innovation and the perfect next step in our Texas expansion,” Smith says.

“Our platform transforms how construction professionals discover and qualify new projects,” she adds, “reducing weeks of business development research into minutes and enabling teams to start building mutually profitable relationships at the earliest possible project stage.”

Mercator.ai, founded in 2020, announced its entry into the Texas market in April. The startup’s expansion into its first Texas market, Austin, represented its introduction to the U.S. market. Aside from Houston and Austin, Mercator.ai plans to break into the Dallas-Fort Worth and San Antonio markets.

New Houston co. transforms emergency response with geolocation, AI, and augmented reality tech

to the rescunomics

A Houston startup is innovating on safety using its geolocation, artificial intelligence, and augmented reality technology.

Rescunomics is designing technology to enhance responses to active shooter situations, fires, and rescues.The company, which provides tiered pricing, is currently working on a platform exclusively for first-responders.

Founded by CEO Emmanuel Joel, a retired captain of the Houston Fire Department, Rescunomics is using a “mission driven” approach to safety that is fueled by leveraging technology. As a part of the HFD, Joel experienced the loss of his mentor and Captain at a house fire that inspired him to take future action.

“This dark period for me inspired a vision to find a solution to this problem that has claimed 1,000 firefighter lives in structural fires in the last three decades,” Joel says in a news release. ”Since my retirement, I have focused on the growth of Rescunomics as a solution provider of innovative solutions to global safety for emergency responders.”

The company uses geolocation technology that can enable first responders to pinpoint their positions within a building to a precise location. By collaborating with geolocation service company NextNav, Rescunomics can integrate a nationwide mesh network,which will ensure accurate Z-axis data in real-time. This can still occur even when GPS fails. Rescunomics’ partnership with T-Mobile uses their 5G low-band network to provide affordable geolocation services.

With a voice-activated Hērōs AI chatbot, Rescunomics can provide instant guidance in high-pressure situations. By using predictive analytics, users can optimize resource allocation during large-scale disasters by utilizing IoT connectivity and SMART analytics with the Hērōs platform. The platform also utilizes its Indoor Mapping Data Format (IMDF). The IMDF allows users access to customized indoor maps of venues like stadiums, airports, and campuses.

For active shooter situations, Rescunomics says its discreet SOS signaling system can enable individuals to alert law enforcement directly.Rescunomics says 60 percent of shooting events end before law enforcement arrives.

Going beyond training purposes, Rescunomics' AR lens technology can arm responders with thermal imaging and VR-enhanced visuals via helmet-mounted displays to help monitor live incident footage.

The Detroit Fire Department is just one of the departments in the U.S. using technology similar to this, as the department is in a pilot program using Safety Cloud by HAAS Alert.