Researchers at KAUST, USTC, and SUSTech have developed a method for carbon capture and storage using guanidinium sulfate salt to create clathrate structures that trap CO2 molecules. This salt-based structure mimics methane hydrate activity and captures CO2 through physisorption, without water or nitrogen interference. The method allows CO2 to be carried as a solid powder at ambient temperature and pressure, offering a less energy-intensive alternative to traditional methods. Why it matters: This innovation introduces a new, energy-efficient way to store and transport CO2 as a solid, potentially revolutionizing carbon capture and storage technologies in the region and beyond.
KAUST researchers synthesized a novel copper-based metal-organic framework (MOF) called SIFSIX-3-Cu for selective CO2 adsorption. The new MOF is porous, moisture-resistant, inexpensive, and reusable, offering advantages over existing materials. Testing showed SIFSIX-3-Cu can efficiently remove CO2 from air, which is relevant for direct air capture (DAC) to reduce greenhouse gas emissions. Why it matters: This new MOF could significantly improve the efficiency and cost-effectiveness of CO2 capture technologies, contributing to global efforts to mitigate climate change.
KAUST alumnus Chuan Xia (M.S. '14, Ph.D. '18) is now a postdoctoral fellow at Harvard, researching CO2 capture and conversion into valuable chemicals using renewable electricity. His Ph.D. research at KAUST, under Professor Husam Alshareef, focused on ternary metal sulfides and selenides for energy storage. Xia credits KAUST with providing training in communication, teamwork, and leadership that facilitated his transition to Harvard. Why it matters: The success of KAUST alumni in fields like sustainable energy highlights the university's growing role in addressing global challenges and fostering international research collaboration.