English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Activated semi-coke loaded with Fe and Co species by a hydrothermal method exhibited excellent CO-deNOx performance. In this study, the reaction mechanism and the evolution of surface-adsorbed species were investigated by CO-TPR, NO-TPO, and in situ DRIFTS. The results demonstrated that in the temperature range of 100–350 °C, the adsorbed CO coordinated to Fe species, inducing an electron migration that influenced the valence state of Fe. Furthermore, the Fe3+ species were found to be the active sites for the transformation of adsorbed CO, whereas the Co3+ species provided the sites for NO evolution. In the catalytic reaction, the Fe–Co interaction could also promote the transformation of adsorbed NO and CO. The DRIFTS spectra revealed that at relatively low temperatures, the transformation of NO species occurred in the following order: NO → NO2− → NO–NO3− → N2O; at higher temperatures, the NO species evolved in the order: NO → NO2− → bidentate NO3− → chelate NO3− + N2. However, the CO transformation process was the same at both low and high temperatures: CO → COO− → CO32− → CO2. NO2− proved to be an important intermediate in the NO + CO reaction.

In situ DRIFTS study of the NO + CO reaction on Fe–Co binary metal oxides over activated semi-coke supports