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

Pd-α-Fe2O3 and Pd-γ-Fe2O3 catalysts were acquired by treating Pd–Fe catalysts with redox pretreatment. These catalysts were characterized by various techniques and applied in the CO oxidation reaction. Characterization reveals that the Pd-α-Fe2O3 catalyst is obtained after calcination in air at 400 °C. The following reduction at lower temperature forms the Pd-γ-Fe2O3 catalyst. In the case of larger Pd (or PdO) and Fe2O3 nanoparticles, the Pd-γ-Fe2O3 catalyst is highly active for low temperature CO oxidation compared with the Pd-α-Fe2O3 catalyst, which may originate from the high oxygen storage properties of γ-Fe2O3 and stronger interaction between Pd and γ-Fe2O3. Higher reduction temperature results in much larger particle sizes and decreased activity. Stability tests also indicate that the highly active Pd-γ-Fe2O3 catalyst could transform to Pd-α-Fe2O3 in reactive atmosphere, leading to catalyst deactivation. Re-reduction treatment of the inactivated catalyst results in reproduction of the activity.

rsc advances

Structural transformation of Pd-α-Fe2O3 and Pd-γ-Fe2O3 catalysts and application in the CO oxidation reaction