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

We have succeeded in in situ and simultaneously observing the redox reaction of palladium and the oxygen storage/release process in a newly developed palladium-promoted Sr­Fe­O (Pd/Sr­Fe­O) catalyst during redox-gas cycles using dispersive X-ray absorption fine structure (XAFS) analysis at 673K with a time resolution of less than 20ms. The Pd/Sr­Fe­O catalyst, which exhibits high performance for automotive emission control, has a unique “multi-phase-domain” structure, where a single grain is composed of nano-sized domains of three phases: SrFeO3¹¤ ,S r4Fe6O13¹¤ and SrFe12O19¹¤. In situ observation has shown a strong correlation between the redox of the palladium and the oxygen storage/release in the Pd/Sr­Fe­O catalyst, and the correlation factors differ between the reduction and oxidation reactions. The oxide phases exhibit a type of “oxygen buffer” effect in the oxidation cycle and delay the formation of Pd­O, resulting in the high performance of the catalyst.

materials transactions

&lt;i&gt;In Situ&lt;/i&gt; and Simultaneous Observation of Palladium Redox and Oxygen Storage/Release in Pd/Sr&amp;ndash;Fe&amp;ndash;O Perovskite Catalysts Using Dispersive XAFS