Nanoparticles are the altered form of basic elements with different atomic and molecular properties. Applications of nanoparticles vary from cosmetics to biomedicine, from electronics to optics. This ...

CHROMIUM oxide is used extensively as a catalyst, both as the pure oxide and as an essential component of various multicomponent systems. The unsupported chromium oxide gel usually undergoes a ...

THE chromium–aluminium oxide catalyst system is one most commonly used in the aromatization of paraffinic hydrocarbons. In practice, mixtures containing up to 20 per cent chromium oxide are used, this ...

The activity-composition curve of co-precipitated chromium oxide-alumina catalysts for the production of toluene from heptane shows two regions of maximum activity. One, at about 70% Cr2O3 is close to ...