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

The NiSO 4 supported on FeO-promoted ZrO 2 catalysts were prepared by the impregnation method. FeO-promoted ZrO 2 was prepared by the coprecipitation method using a mixed aqueous solution of zirconium oxychloride and ironnitrate solution followed by adding an aqueous ammonia solution. The addition of nickel sulfate (or FeO) to ZrO 2 shifted the phase transition of ZrO 2 (from amorphous to tetragonal) to higher temperatures because of the interaction between nickel sulfate (or FeO) and ZrO 2 . 10-NiSO 4 /5-FeO-ZrO 2 containing 10 wt % NiSO 4 and 5 mol % FeO, and calcined at 500 °C exhibited a maximum catalytic activity for ethylene dimerization. NiSO 4 /FeO-ZrO 4 catalysts was very effective for ethylene dimerization even at room temperature, but Fell-ZrO 2 without NiSO 4 did not exhibit any catalytic activity at all. The catalytic activities were correlated with the acidity of catalysts measured by the ammonia chemisorption method. The addition of FeO up to 5 mol.% enhanced the acidity, surface area, thermal property, and catalytic activities of catalysts gradually, due to the interaction between FeO and ZrO 2 and due to consequent formation of Fe-O-Zr bond.

NiSO4Supported on FeO-promoted ZrO2Catalyst for Ethylene Dimerization

NiSO₄Supported on FeO-promoted ZrO₂Catalyst for Ethylene Dimerization