Chapter 5 A there-function model reaction for designing DeNOx catalysts

Structure, synthesis, and catalytic properties of nanosize cerium-zirconium-based solid solutions in environmental catalysis

“…The reduction mechanism of NOx by HC over CZO is very complex [376][377][378][379][380][381]. According to the mechanism proposed by Djéga-Mariadassou et al [379] (as shown in Fig.…”

Catalytic NOx Abatement Systems for Mobile Sources: From Three-Way to Lean Burn after-Treatment Technologies

“…Presently the development of novel catalytic materials specifically designed for the various functions needed for NO x removal might be considered as an important point. By way of illustration, the precursor work earlier proposed by Djega-Mariadassou et al 15 dealing with the requirement of three functions as described in Figure 3 for DeNO x only represents a starting point, which suggests at least two main questions: which optimal interaction between active elements is needed to get significant enhancements in NO x conversion and how can we get such an interaction by developing alternative catalyst synthesis routes? Probably, this strategy needs a better understanding of the catalyst working under realistic conditions via the development of operando spectroscopic studies.…”

“…A wide number of reviews have already been written on the subject in the past two decades − dealing with various macroscopic aspects related to previous achievements in three-way catalysis, future challenges, and prospects to find out novel catalytic formulations for diesel engines. Microscopic aspects have also been reviewed separately concerning reaction mechanisms and possible intermediates stabilized in various operating conditions.…”

“…The three-way function model for designing DeNO x catalysts in the presence of methane as reductant. Reprinted with permission from ref . Copyright 2007 Elsevier B.V.…”

Core‐crown Quantum Nanoplatelets with Favorable Type‐II Heterojunctions Boost Charge Separation and Photocatalytic NO Oxidation on TiO2

“…[2] Hence, it is crucial to find improved protocols for the removal of NO x species from the atmosphere. Conventionally, NO x abatement is typically performed at elevated temperatures (e. g. 200-550°C) using thermal catalytic technologies (e. g. via selective catalytic reduction/SCR, NO x storage and reduction/ NSR, or three way catalysis/TWC) [3][4][5][6][7][8][9][10] with an intend to curtail the toxic NO x emissions at the source of generation. Frequent violations of transportation-based NO x emission regulation [11] necessitates the reduction of gaseous NO x species after their point of origin under ambient conditions (i. e. at room temperature and under atmospheric pressure).…”