Boron-hyperdoped silicon for the selective oxidative dehydrogenation of propane to propylene

Abstract

Boron containing catalysts have great potential in the oxidative dehydrogenation of propane reaction. Herein, a series of 15, 25 and 42 at.% boron-hyperdoped silicon catalysts synthesized by laser pyrolysis were...

Efficient metal borate catalysts for oxidative dehydrogenation of propane

“…In addition, the small peaks around 1186 and 3227 cm −1 are attributed to B–OH. 23,39 Such B–O and B–OH species could be considered as active species in the ODHP reaction, as reported previously. 9,39…”

“…23,39 Such B–O and B–OH species could be considered as active species in the ODHP reaction, as reported previously. 9,39…”

“…In addition, the small peaks around 1186 and 3227 cm −1 are attributed to B-OH. 23,39 Such B-O and B-OH species could be considered as active species in the ODHP reaction, as reported previously. 9,39 To further investigate the effect of different types and contents of boron species in the ODHP reaction, 11 B MAS-NMR experiments were carried out on the synthesized catalyst in Fig.…”

Green synthesis of propylene oxide directly from propane

“…14,26 In oxygen-rich feed, on the other hand, values around 190 kJ/mol were found. [27][28][29] The observations made by Loilad et al led to the conclusion that the catalysts seem to initiate the formation of radicals on their surfaces under nondilute conditions, which then desorb into the gas phase to undergo radical chain reactions. 26 The contribution of radical reactions to the reaction mechanism via boron-containing catalysts has since been increasingly discussed.…”

Post-Synthesis Boron Doping of Silicon Quantum Dots via Hydrosilsesquioxane-Capped Thermal Diffusion

“…3,4,8,13,[32][33][34][35] To date, incorporation of dopants such as B and/or P atoms into SiQDs has yielded optical and electronic properties that were previously inaccessible with intrinsic materials (e.g., conductivity, plasmonic response, catalytic surfaces, hydrophilic surfaces, etc.). [36][37][38][39][40][41][42] Doping SiQDs also brings with it outstanding challenges including control over dopant concentration and location due to physical size restraints, as well as limited experimental synthesis and analysis approaches. If the community is to gain an important fundamental understanding of doped SiQDs and their properties, it is essential that synthesis methods providing straightforward control over QD dimension, dopant concentration and distribution, as well as surface chemistry be established.…”