Aygün, MehtapChamberlain, Thomas W.Giménez López, María del CarmenKhlobystov, Andrei N.2018-11-232018-07-11Aygün, M., Chamberlain, T., Gimenez-Lopez, M., & Khlobystov, A. (2018). Magnetically Recyclable Catalytic Carbon Nanoreactors. Advanced Functional Materials, 28(34), doi: 10.1002/adfm.2018028691616-301Xhttp://hdl.handle.net/10347/17811This is the peer reviewed version of the following article: Aygün, M., Chamberlain, T., Gimenez-Lopez, M., & Khlobystov, A. (2018). Magnetically Recyclable Catalytic Carbon Nanoreactors. Advanced Functional Materials, 28(34), 1802869, which has been published in final form at https://doi.org/10.1002/adfm.201802869Multifunctional nanoreactors are assembled using hollow graphitized carbon nanofibers (GNFs) combined with nanocatalysts (Pd or Pt) and magnetic nanoparticles. The latter are introduced in the form of carbon‐coated cobalt nanomagnets (Co@Cn) adsorbed on GNF, or formed directly on GNF from ferrocene yielding carbon‐coated iron nanomagnets (Fe@Cn). High‐resolution transmission electron microscopy demonstrates that Co@Cn and Fe@Cn are attached effectively to the GNFs, and the loading of nanomagnets required for separation of the nanoreactors from the solution with an external magnetic field is determined using UV–vis spectroscopy. Magnetically functionalized GNFs combined with palladium or platinum nanoparticles result in catalytically active magnetically separable nanoreactors. Applied to the reduction of nitrobenzene the multifunctional nanoreactors demonstrate high activity and excellent durability, while their magnetic recovery enables significant improvement in the reuse of the nanocatalyst over five reaction cycles (catalyst loss < 0.5 wt%) as compared to the catalyst recovery by filtration (catalyst loss <10 wt%)eng© 2018 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived VersionsMagnetic nanoparticlesNanocatalysisNanoreactorsNanotubesNitrobenzene reductionMagnetically Recyclable Catalytic Carbon Nanoreactorsjournal article10.1002/adfm.2018028691616-3028open access