High-Power Rapid Laser-Induced Synthesis of Multi-functional Cobalt Metal-Organic Framework With an Unprecedented Synthesis Efficiency

Abstract

A rapid, high-yield laser-assisted synthesis route with an exceptional production efficiency (>= 90%) is introduced for cobalt-based metal-organic frameworks (Co-MOFs), producing ordered hybrid structures within an hour that integrate optical, magnetic, and adsorption functionalities. The Co-MOFs exhibit tunable properties, including a low-temperature paramagnetic transition confirmed by magnetic measurements and first-principles calculations. Gas adsorption studies reveal promising performance for N2, CH4, and CO2, combining low energy consumption with cost-effective gas separation. Structural analysis indicates mesoporosity with high accessibility, supporting selective uptake under practical conditions. Importantly, Co-MOF-modified graphite electrodes demonstrate outstanding electrochemical sensing performance for dopamine, achieving a low detection limit (5.5 & micro;M), high sensitivity (121 & micro;A mM- 1 cm- 2), and excellent reproducibility in human serum. These results underline the multifunctional potential of laser-synthesized Co-MOFs as scalable platforms that couple sustainable gas separation with biomedical diagnostics, advancing the development of framework materials for real-world applications.