In this new work we study the low-temperature formation mechanism of NiFe-carbon magnetic supercapacitive nanocomposites prepared using hybrid sebacate intercalated layered double hydroxides (LDHs) as precursors with complementary in situ (temperature-dependent) techniques. These in situ studies confirm the early formation of FeNi3 nanoparticles at ca.200–250 °C, preceding the concerted collapse of the starting NiFe-LDH laminar structure over just 50 °C. In addition, the catalytic interactions between the metallic atoms and the organic molecules form a graphitic carbon matrix leading to the formation of the final FeNi3-carbon nanocomposite. This report provides fundamental insights into the catalytic formation of carbon-based nanocomposites using LDHs as precursors, allowing better tuning of their final properties, with special interest in the field of energy storage and conversion. You can find the article here
