Ultrastable Magnetic Nanoparticles Encapsulated in Carbon for Magnetically Induced Catalysis

High Resolution Image Download MS PowerPoint Slide Magnetically induced catalysis using magnetic nanoparticles (MagNPs) as heating agents is a new efficient method to perform reactions at high temperatures. However, the main limitation is the lack of stability of the catalysts operating in such harsh conditions. Normally, above 500 °C, significant sintering of MagNPs takes place. Here we present encapsulated magnetic FeCo and Co NPs in carbon ( [email protected] and [email protected] ) as an ultrastable heating material suitable for high-temperature magnetic catalysis. Indeed, [email protected] or a mixture of [email protected]: [email protected] (2:1) decorated with Ni or Pt–Sn showed good stability in terms of temperature and catalytic performances. In addition, consistent conversions and selectivities regarding conventional heating were observed for CO 2 methanation (Sabatier reaction), propane dehydrogenation (PDH), and propane dry reforming (PDR). Thus, the encapsulation of MagNPs in carbon constitutes a major advance in the development of stable catalysts for high-temperature magnetically induced catalysis.