Three-Dimensional Porous Hexagonal Boron Nitride Fibers as Metal-Free Catalysts with Enhanced Catalytic Activity for Oxidative Dehydrogenation of Propane

Author(s):  
Guangming Wang ◽  
Yao Yan ◽  
Xuefei Zhang ◽  
Xinhua Gao ◽  
Zailai Xie
2020 ◽  
Author(s):  
Peter Kraus ◽  
R. Peter Lindstedt

We investigate the role of gas-phase phenomena in the heterogeneous oxidative dehydrogenation of propane over hexagonal boron nitride. We apply a recently developed gas-phase combustion model for low-temperature combustion of propane and couple it with several surface microkinetic mechanisms to probe the selectivity limits using the open-source flame solver Cantera. We show that while the conversion of propane is surface-driven, the selectivities are significantly influenced by the gas-phase, especially when dilute catalyst beds are used.<br>


2019 ◽  
Vol 123 (4) ◽  
pp. 2256-2266 ◽  
Author(s):  
Hongping Li ◽  
Jinrui Zhang ◽  
Peiwen Wu ◽  
Suhang Xun ◽  
Wei Jiang ◽  
...  

2016 ◽  
Vol 4 (12) ◽  
pp. 4506-4515 ◽  
Author(s):  
Indrajit M. Patil ◽  
Moorthi Lokanathan ◽  
Bhalchandra Kakade

Excellent ORR kinetics by an h-BN/rGO nanocomposite is shown with an onset potential ∼0.8 V vs. RHE, attributed to the segregation mechanism and coalescence of graphitic planes of h-BN and rGO.


2021 ◽  
Author(s):  
Peter Kraus ◽  
R. Peter Lindstedt

We investigate the role of gas-phase phenomena in the heterogeneous oxidative dehydrogenation of propane over hexagonal boron nitride. We apply a recently developed gas-phase combustion model for low-temperature combustion of propane and couple it with several surface microkinetic mechanisms to probe the selectivity limits using the open-source flame solver Cantera. We show that while the conversion of propane is surface-driven, the selectivities are significantly influenced by the gas-phase, especially when dilute catalyst beds are used.<br>


2021 ◽  
Author(s):  
Peter Kraus ◽  
R. Peter Lindstedt

We investigate the role of gas-phase phenomena in the heterogeneous oxidative dehydrogenation of propane over hexagonal boron nitride. We apply a recently developed gas-phase combustion model for low-temperature combustion of propane and couple it with several surface microkinetic mechanisms to probe the selectivity limits using the open-source flame solver Cantera. We show that while the conversion of propane is surface-driven, the selectivities are significantly influenced by the gas-phase, especially when dilute catalyst beds are used.<br>


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