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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

One dimensional mesoporous etched halloysite nanotube supported Co 2+ is achieved by selective etching of Al 2 O 3 from halloysite nanotube (HA) and immersing the etched HA (eHA) into the Co(NO 3 ) 2 ·6H 2 O solution consecutively. By facilely tuning the etching time and the weight ratio of Co(NO 3 ) 2 ·6H 2 O to eHA, the morphology, specific surface area and the supported Co 2+ content of the mesoporous material can be tuned. The method for mesoporous material is scaled up and can be extended to other clay minerals. The mesoporous eHA supported Co 2+ is used as catalyst for the selective catalytic oxidation of cyclohexene in solvent-free reaction system with O 2 as oxidant. The results shows the catalytic activity is dependent on etching time, weight ratio of Co(NO 3 ) 2 ·6H 2 O to eHA, calcination treatment and reaction time/temperature. Among them, mesoporous eHA supported Co 2+ prepared with 18 h etching time and 2 : 1 Co(NO 3 ) 2 ·6H 2 O/eHA weight ratio without calcination (HA/HCl-18 h/Co 2+ -2 : 1) demonstrates the highest catalytic activity under 75 °C reaction temperature and 18 h reaction time (58.30% conversion and 94.03% selectivity to allylic products). Furthermore, HA/HCl-18 h/Co 2+ -2 : 1 has exhibit superior cycling stability with 37.69% conversion and 92.73% selectivity to allylic products after three cycles.

Effective solvent-free oxidation of cyclohexene to allylic products with oxygen by mesoporous etched halloysite nanotube supported Co2+

Effective solvent-free oxidation of cyclohexene to allylic products with oxygen by mesoporous etched halloysite nanotube supported Co²⁺