Highly efficient dehydrogenation of dodecahydro-N-ethylcarbazole over Al2O3 supported PdCo bimetallic nanocatalysts prepared by galvanic replacement

Ultrasound-assisted preparation of PdCo bimetallic nanoparticles loaded on beta zeolite for efficient catalytic hydrogen production from dodecahydro-N-ethylcarbazole

“…Fig. 8 (b, d) shows the XPS profiles of Pd 3d and Co 2p in Pd 1 Co 9 /beta catalyst, where 336.3 eV and 341.8 eV belong to 3d 5/2 and 3d 3/2 of Pd 0 , 337.8 eV and 343.6 eV belong to 3d 5/2 and 3d 3/2 of Pd 2+ , 781.7 eV and 797.3 eV belong to 2p 3/2 and 2p 1/2 of Co 0 , and 786.6 eV and 803.0 eV belong to 2p 3/2 and 2p 1/2 of Co 2+ [58] , [59] , [60] . Fig.…”

V-Promoted Ultrasmall Pd Nanoparticles Supported on V-KIT-6 for the Enhanced Catalytic Dehydrogenation of Perhydro-N-ethylcarbazole

“…Furthermore, with increasing temperature, the TOF increases from 30.01 to 106.64 min –1 (Figure g), which is much higher than the previous report on Pd-based catalysts. , Surprisingly, this TOF is over 10 times and 27 times higher than the Pd-EU/K6 and Pd/C-A catalysts, respectively, under the same conditions. The specific data of 12H-NEC dehydrogenation on 5 wt % Pd/V-KIT-6 at 160–200 °C and other catalysts for comparison ,,,, are listed in Table . In addition, the TOF of H 2 production and the H 2 production rate can be as high as 74.5 min –1 and 2.6 L·g Pd –1 ·min –1 , respectively (Figure i).…”

“…The bond energy of C–H is higher than that of the C–C bond, making C–H activation difficult . Dehydrogenation studies of 12H-NEC are primarily conducted using precious metal catalysts, like Ru, Rh, Pd and Pt. , In particular, it has been demonstrated that Pd exhibits the highest catalytic activity and selectivity level in 12H-NEC dehydrogenation. − However, the disadvantages of scarcity, high cost, and weak resistance to poisoning limit their large-scale application.…”

Development of Liquid Organic Hydrogen Carriers for Hydrogen Storage and Transport

“…The mechanism of hydrogenation of NEC was studied computationally using a model of the atomic charges, the energy of localization. and atoms present in the molecule [51,52]. The approach of hydrogen molecules towards NEC was studied with varied orientations, and it was found that hydrogen approached the molecule by a transoid conformation concerning the ethyl group.…”