Removal of NO by carbonaceous materials at room temperature: A review

Carbonaceous materials are considered to be effective materials for selective catalytic reduction (SCR) of NO, especially at room temperature. Carbonaceous materials can not only be used for adsorption applications due to their porosity properties but also can act as supports or reactants, which are globally available. This paper reviews the current state removal of NO by carbonaceous materials. Moreover, the characteristics of carbonaceous materials, mechanisms and kinetics of removal of NO by carbonaceous materials are also discussed. It is observed that carbonaceous material supported metal oxides can remove NO effectively at low temperature. Currently, removal of NO by carbonaceous materials at room temperature has been developed in the lab, but it is still in the research and development stage. In the future, three aspects of the work should be further studied, which is to extend the catalyst life, enhance the catalytic properties and reduce the cost of catalyst preparation. All the tasks are necessary for the practical application of NO removal technology at room temperature.