NO x is one of the serious air pollutants and N 2 O is a powerful greenhouse gas. The
catalytic removal of NO x and N 2 O is very important for the air quality improvement and the …

In this work, CoAl 2 O 4 pigments successfully were prepared via thermal decomposition
method by employing green tea extract as precipitating agent and cap** agent. The …

The CoxZn1− xAl2O4 system (x= 0; 0.1; 0.3; 0.5; 0.7; 0.9 and 1) was synthesized by the
polymeric precursor method and characterized by the techniques XRD, TG-DTA, IR, UV–vis …

Sintering is an important issue in creating crystalline metal oxides with high porosity and
surface area, especially in the case of high-temperature materials such as metal aluminates …

The objective of this work is to investigate the optical and dielectric properties of the
synthetized cobalt aluminate (CoAl 2 O 4) by chemical route using nitrates as reagents. The …

Modern-year organic contaminants have been highly observed in ecosystems since they are
not removed entirely and remain dangerous. Semiconductor binary oxide photocatalysts …

In this work, a series of near-infrared reflective inorganic pigments with a general formula Co
0.5 Mg 0.5 Al 2− x Fe x O 4 (x= 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) were successfully prepared by …

Nanostructured materials find a number of applications due to their inimitable physical and
chemical properties. In the current work copper oxide nanoparticles (CuO NPs) and …

Cobalt chromite based pigments Co 1− x M x Cr 2 O 4 (M= Ni, Cu, and Zn) with different
transition metal concentrations (0≤ x≤ 1 with a step of 0.25) have been synthesized …

Blue nano-pigments of Co 1-x Ca x Al 2 O 4 (x= 0.1, 0.2, 0.4, 0.6, and 0.8) were synthesized
by the polyacrylamide gel method. The obtained powders were characterized by XRD, SEM …