Kaya, MuratBulut, AhmetYurderi, MehmetKaratas, YasarZahmakiran, MehmetKivrak, HilalGulcan, MehmetKaya, MuratChemical Engineering2024-07-052024-07-0520151360926-33731873-388310.1016/j.apcatb.2014.09.0412-s2.0-84907980052https://doi.org/10.1016/j.apcatb.2014.09.041https://hdl.handle.net/20.500.14411/720Bulut, ahmet/0000-0002-1697-8623; Demir KIVRAK, Hilal/0000-0001-8001-7854; Yurderi, Mehmet/0000-0002-0233-8940; Karatas, Yasar/0000-0002-9171-7781; Kivrak, Hilal/0000-0001-8001-7854; Kaya, Murat/0000-0002-2458-8924; Yurderi, Mehmet/0000-0002-6761-3763; Gulcan, Mehmet/0000-0002-3921-8811Herein we report the development of a new highly active, selective and reusable nanocatalyst for additive-free dehydrogenation of formic acid (HCOOH), which has great potential as a safe and convenient hydrogen carrier for fuel cells, under mild conditions. The new catalyst system consisting of bimetallic Pd-MnOx nanoparticles supported on aminopropyl functionalized silica (Pd-MnOx/SiO2-NH2) was simply and reproducibly prepared by deposition-reduction technique in water at room temperature. The characterization of Pd-mnO(x)/SiO2-NH2 catalyst was done by the combination of multipronged techniques, which reveals that the existence of highly crystalline individually nucleated Pd(0) and MnOx nanoparticles (d(mean) = 4.6 +/- 1.2 nm) on the surface of aminopropyl functionalized silica. These supported Pd-MnOx nanoparticles can catalyze the additive-free dehydrogenation of formic acid with record activity (TOF = 1300 h(-1)) at high selectivity (>99%) and conversion (>99%) under mild conditions (at 50 degrees C and under air). Moreover, easy recovery plus high durability of these supported Pd-MnOx nanoparticles make them a reusable heterogeneous catalyst in the additive-free dehydrogenation of formic acid. (C) 2014 Elsevier B.V. All rights reserved.eninfo:eu-repo/semantics/closedAccessFormic acidDehydrogenationNanoparticlesPalladiumManganese oxideArticle164324333WOS:000345181800037