The $$L^p$$–$$L^q$$ boundedness and compactness of Fock projections

High-performance metal-oxide gas sensors based on hierarchical core–shell ZnFe2O4 microspheres for detecting 2-chloroethyl ethyl sulfide

“…25 Binary metal oxide systems AB 2 O 4 (A = Zn, Ni, Mn, Cu, etc., B = Co, Fe, Mn, Mn, etc.) have been extensively investigated as electrode materials for lithium-ion batteries, [26][27][28] supercapacitors, [29][30][31] magnetic storage media, 32 and electrocatalysts, 33 owing to their environmental friendliness, low cost, and high stability. Among binary metal oxides, ZnFe 2 O 4 , a typical n-type semiconductor with a spinel structure, has recently attracted considerable research attention as a gassensing material because of its abundant oxygen vacancies and excellent selectivity, stability, and sensitivity.…”