scholarly journals Plasma-catalytic ammonia synthesis beyond thermal equilibrium on Ru-based catalysts in non-thermal plasma

2021 ◽  
Author(s):  
Kevin H. R. Rouwenhorst ◽  
Hugo G. B. Burbach ◽  
Dave W. Vogel ◽  
Judit Núñez Paulí ◽  
Bert Geerdink ◽  
...  
Keyword(s):  
Thermal Plasma ◽  
Thermal Equilibrium ◽  
Ammonia Synthesis ◽  
Ru Catalysts ◽  
Plasma Activation ◽  
Catalytic Ammonia Synthesis ◽  
Non Thermal Plasma

The barrier for N2 dissociation on Ru can be decreased by plasma-activation, or the barrier can be removed completely by the formation of N radicals, resulting in NH3 formation beyond the thermal equilibrium on Ru-catalysts.

Complete oxidation of formaldehyde over a Pd/CeO2 catalyst at room temperature: tunable active oxygen species content by non-thermal plasma activation

2020 ◽  
Vol 10 (18) ◽  
pp. 6257-6265
Author(s):  
Kai Li ◽  
Jian Ji ◽  
Miao He ◽  
Haibao Huang
Keyword(s):  
Human Health ◽  
Thermal Plasma ◽  
Room Temperature ◽  
Active Oxygen Species ◽  
Active Oxygen ◽  
Complete Oxidation ◽  
Oxygen Species ◽  
Plasma Activation ◽  
Indoor Pollutant ◽  
Non Thermal Plasma

Formaldehyde is a main indoor pollutant and its removal is essential to protect human health and meet strict environmental regulations.

scholarly journals Non-Thermal Plasma Activation of Gold-Based Catalysts for Low-Temperature Water-Gas Shift Catalysis

2017 ◽  
Vol 129 (20) ◽  
pp. 5671-5675 ◽  
Author(s):  
Cristina E. Stere ◽  
James A. Anderson ◽  
Sarayute Chansai ◽  
Juan Jose Delgado ◽  
Alexandre Goguet ◽  
...  
Keyword(s):  
Low Temperature ◽  
Thermal Plasma ◽  
Water Gas Shift ◽  
Plasma Activation ◽  
Non Thermal Plasma ◽  
Water Gas ◽  
Temperature Water

scholarly journals Plasma-Catalytic Ammonia Synthesis Beyond the Equilibrium Limit

2020 ◽  
Author(s):  
Prateek Mehta ◽  
Patrick M. Barboun ◽  
Yannick Engelmann ◽  
David B. Go ◽  
Annemie Bogaerts ◽  
...  
Keyword(s):  
Elevated Temperatures ◽  
Ammonia Synthesis ◽  
Packed Bed ◽  
Reaction Rates ◽  
Thermal Reaction ◽  
Equilibrium Limit ◽  
Plasma Activation ◽  
Catalytic Material ◽  
Material Choice ◽  
Catalytic Ammonia Synthesis

We explore the consequences of non-thermal plasma activation on product yields in catalytic ammonia synthesis, a reaction that is equilibrium-limited at elevated temperatures. We employ a minimal microkinetic model that incorporates the influence of plasma activation on N<sub>2</sub> dissociation rates to predict NH<sub>3</sub> yields into and across the equilibrium-limited regime. NH<sub>3</sub> yields are predicted to exceed bulk thermodynamic equilibrium limits on materials that are thermal-rate-limited by N<sub>2</sub> dissociation. In all cases, yields revert to bulk equilibrium at temperatures at which thermal reaction rates exceed plasma-activated ones. Beyond-equilibrium NH<sub>3</sub> yields are observed in a packed bed dielectric-barrier-discharge reactor and exhibit sensitivity to catalytic material choice in a way consistent with model predictions. The approach and results highlight the opportunity to exploit synergies between non-thermal plasmas and catalysts to affect transformations at conditions inaccessible through thermal routes.

scholarly journals Plasma-Catalytic Ammonia Synthesis Beyond the Equilibrium Limit

2020 ◽  
Author(s):  
Prateek Mehta ◽  
Patrick M. Barboun ◽  
Yannick Engelmann ◽  
David B. Go ◽  
Annemie Bogaerts ◽  
...  
Keyword(s):  
Elevated Temperatures ◽  
Ammonia Synthesis ◽  
Packed Bed ◽  
Reaction Rates ◽  
Thermal Reaction ◽  
Equilibrium Limit ◽  
Plasma Activation ◽  
Catalytic Material ◽  
Material Choice ◽  
Catalytic Ammonia Synthesis

We explore the consequences of non-thermal plasma activation on product yields in catalytic ammonia synthesis, a reaction that is equilibrium-limited at elevated temperatures. We employ a minimal microkinetic model that incorporates the influence of plasma activation on N<sub>2</sub> dissociation rates to predict NH<sub>3</sub> yields into and across the equilibrium-limited regime. NH<sub>3</sub> yields are predicted to exceed bulk thermodynamic equilibrium limits on materials that are thermal-rate-limited by N<sub>2</sub> dissociation. In all cases, yields revert to bulk equilibrium at temperatures at which thermal reaction rates exceed plasma-activated ones. Beyond-equilibrium NH<sub>3</sub> yields are observed in a packed bed dielectric-barrier-discharge reactor and exhibit sensitivity to catalytic material choice in a way consistent with model predictions. The approach and results highlight the opportunity to exploit synergies between non-thermal plasmas and catalysts to affect transformations at conditions inaccessible through thermal routes.

scholarly journals Coupling non-thermal plasma with Ni catalysts supported on BETA zeolite for catalytic CO2 methanation

2019 ◽  
Vol 9 (15) ◽  
pp. 4135-4145 ◽  
Author(s):  
Huanhao Chen ◽  
Yibing Mu ◽  
Yan Shao ◽  
Sarayute Chansai ◽  
Shaojun Xu ◽  
...  
Keyword(s):  
Thermal Plasma ◽  
Reaction Mechanisms ◽  
Beta Zeolite ◽  
Ni Catalysts ◽  
Co2 Methanation ◽  
Plasma Activation ◽  
Non Thermal Plasma

Non-thermal plasma activation promotes CO2 conversion over Ni catalysts supported on BETA zeolite via multiple reaction mechanisms.

A review on the non-thermal plasma-assisted ammonia synthesis technologies

2018 ◽  
Vol 177 ◽  
pp. 597-609 ◽  
Author(s):  
Peng Peng ◽  
Paul Chen ◽  
Charles Schiappacasse ◽  
Nan Zhou ◽  
Erik Anderson ◽  
...  
Keyword(s):  
Thermal Plasma ◽  
Ammonia Synthesis ◽  
Non Thermal Plasma

Atmospheric Pressure Ammonia Synthesis Using Non-thermal Plasma Assisted Catalysis

2016 ◽  
Vol 36 (5) ◽  
pp. 1201-1210 ◽  
Author(s):  
Peng Peng ◽  
Yun Li ◽  
Yanling Cheng ◽  
Shaobo Deng ◽  
Paul Chen ◽  
...  
Keyword(s):  
Thermal Plasma ◽  
Atmospheric Pressure ◽  
Ammonia Synthesis ◽  
Non Thermal Plasma

Photofunctionalization and non-thermal plasma activation of titanium surfaces

2017 ◽  
Vol 22 (2) ◽  
pp. 1045-1054 ◽  
Author(s):  
Anders Henningsen ◽  
Ralf Smeets ◽  
Philip Hartjen ◽  
Oliver Heinrich ◽  
Roman Heuberger ◽  
...  
Keyword(s):  
Thermal Plasma ◽  
Plasma Activation ◽  
Titanium Surfaces ◽  
Non Thermal Plasma

Non-thermal plasma activation of BPDA-PPD polyimide for improved cell-material interaction

Polymer ◽  
2020 ◽  
Vol 205 ◽  
pp. 122831
Author(s):  
Laura Astoreca ◽  
Pieter Cools ◽  
David Schaubroeck ◽  
Mahtab Asadian ◽  
Sheida Aliakbarshirazi ◽  
...  
Keyword(s):  
Thermal Plasma ◽  
Plasma Activation ◽  
Cell Material ◽  
Non Thermal Plasma ◽  
Material Interaction
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