Chemical thermodynamic and catalytic mechanism analysis of Cu-BTC-derived CuOx/C catalyst for selective catalytic reduction (SCR)

Abstract

Solvent or hydrothermal synthesis of MOF requires more energy. Therefore, based on the synthesis of MOF at room temperature, CuOx/C catalyst was prepared by calcination, and related researches were carried out with the goal of removing NOx. The effects of different calcination time and calcination temperature on the denitration performance of the catalyst were studied, and the optimal preparation conditions were screened. And through the characterization and analysis of XRD, FTIR, SEM and XPS, the difference in denitration performance of the catalyst under different calcination conditions was explained. Combined with the calculation of HSC Chemistry software, it is shown that NO would react differently on the catalyst at different temperatures. Which was also an important reason for the need to improve the selectivity of catalysts at low temperatures. Environmental Implication NOx is one of the main gas pollutants, and the current treatment method mainly uses ammonia gas as a reducing agent to remove it under the action of the catalyst. Through the action of catalyst, NOx can react with ammonia gas to generate harmless nitrogen gas.