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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Nano-crystalline cobalt oxide (Co3O4) was prepared by solution combustion synthesis (SCS) and used as ammonia sensing material. The obtained powder was characterized by laser granulometry, thermal analysis, X-ray diffraction, X-ray Photoelectron Spectroscopy, nitrogen adsorption (B.E.T -Brunnauer, Emmet, Tellertechnique), Raman spectroscopy, field emission scanning electron microscopy and transmission electron microscopy. Sensors were screen-prin -alumina substrates with platinum interdigitated electrodes and fired at 700°C for 1 h in air, after drying overnight. response (R) was defined as the ratio between the impedance of the film under gas exposure at the equilibrium and the impedance under dry air and was measured in the range 150°C 250°C under 1 50 ppm of NH3. Response time and recovery time (e.g., the times taken by the sensor to attain 90% of total impedance change from its initial impedance value) were also determined. Best results were obtained at 225°C, with R equal to 1.83 under 50 ppm exposure to NH3.

P1GS.19 - Cobalt spinel via solution combustion synthesis as an ammonia sensing material