Science Daily March 21, 2023
Parallel sunlight-driven catalytic conversion of CO2 and protons to syngas is a key step toward a sustainable energy cycle. State-of-the-art catalytic systems and materials often fall short as application-oriented concurrent CO and H2 evolution requires challenging reaction conditions which can hamper stability, selectivity, and efficiency. Researchers in Germany engineered a light-harvesting metal-organic framework hosting two molecular catalysts to yield colloidal, water-stable, versatile nanoreactors for photocatalytic syngas generation with highly controllable product ratios. In-depth fluorescence, X-ray, and microscopic studies paired with kinetic analysis show that the host delivers energy efficiently to active sites, conceptually yielding nanozymes. This unlocked sustained CO2 reduction and H2 evolution with benchmark turnover numbers and record incident photon conversions up to 36%, showcasing a highly active and durable all-in-one material toward application in solar energy-driven syngas generation… read more. Open Access TECHNICAL ARTICLEÂ
Schematic representation of photocatalytic syngas-evolving MOF nanoreactors for regulated syngas production. Credit: Advanced MaterialsVolumeMaterials Volume 35, Issue 6 2207380Â