An inhomogeneous catalyst surface leads to concentration gradients along this surface,which can generate diffusio-osmotic flows.The magnitude of this surface flow and the extent to which it impacts the catalytic conve...An inhomogeneous catalyst surface leads to concentration gradients along this surface,which can generate diffusio-osmotic flows.The magnitude of this surface flow and the extent to which it impacts the catalytic conversion is numerically investigated and depends foremost on the reaction kinetics of the system and the surface-species interactions expressed via the diffusio-osmotic mobility.We present general scaling laws based on the reaction kinetics and interaction potential between chemical species and the catalytic surface,captured in a single parameter.We further investigate the optimal catalyst coverage in order to maximize the benefit of these surface flows.展开更多
基金supported by the Netherlands Center for Multiscale Catalytic Energy Conversion(MCEC)an NWO Gravitation programme funded by the Ministry of Education,Culture and Science of the government of the Netherlandsthe Vici project STW 016.160.312,financed by the Netherlands Organisation for Scientific Research(NWO).
文摘An inhomogeneous catalyst surface leads to concentration gradients along this surface,which can generate diffusio-osmotic flows.The magnitude of this surface flow and the extent to which it impacts the catalytic conversion is numerically investigated and depends foremost on the reaction kinetics of the system and the surface-species interactions expressed via the diffusio-osmotic mobility.We present general scaling laws based on the reaction kinetics and interaction potential between chemical species and the catalytic surface,captured in a single parameter.We further investigate the optimal catalyst coverage in order to maximize the benefit of these surface flows.
