Versatile microreactor for studies of gas–surface catalytic reactions between 10−7 and 1000 Torr

Abstract
A microreactor system that is designed for studies of steady‐state and batch heterogeneous reactions on a wire, foil, or single‐crystal surface at pressures between 107 and 1000 Torr is described. The applicability of the continuous stirred tank reactor approximation that facilitates the calculation of absolute reaction rates is discussed. Results for the decomposition of ammonia on a polycrystalline platinum wire are used to illustrate the performance of the microreactor.