Effect of H2O and CO2 on NOx emission control for lean-burn engines by electrochemical-catalytic cells

Mechanistic modeling of NO electrochemical reduction in a micro-tubular cell: Effects of CO2/H2O components and electrochemical promotion

“…NO and NO 2 analyzers were used for measuring the outlet gas compositions with uncertainty ranges of ±10 ppm. The simulation results calculated in this paper were well fitted with the experiment data [34] except high NO and NO 2 inlet concentration region. The maximum calculation error is within 6%.…”

“…The reaction rate expressions according to the law of mass action and Arrhenius law are considered as one global reactions that can be shown in Table 2. The activation energy of r 5 [29] and r 6 [33] are chosen to fit with the experimental data well by Huang [34]. The geometric parameters of the porous electrodes are shown in Table 3.…”

“…Huang et al's [34] research work is chosen as the model validation to study the effects of CO 2 and H 2 O on NO and NO 2 reduction performances. In their experiments, the testing temperature was set at 400°C.…”

Recent Developments of Electrochemical Promotion of Catalysis in the Techniques of DeNOx

“…The simplified catalytic system, without consuming any reductant, that a new generation catalytic converter (electrochemical-catalytic cells, ECCs) can have a very compact size to be used for lean-burn motor vehicles [19–21]. Authors offered the transformation process of ions on the catalysis (shown in Figure 2) [22]. They think that either the SOFC or the ECC is by direct NO decomposition because there is no reductant over the cathode.…”

Nitrogen oxide electrochemical reduction characteristics on patterned platinum electrode

“…However, the cathode reactants are usually accompanied by oxygen. Therefore, the NO reduction activity will decrease as part of electrical energy is used to reduce oxygen [16]. It has to confront with a big challenge that the cathode electrode would have a high reduction activity and selectivity toward NO.…”