Applications and Preparation Methods of Copper Chromite Catalysts: A Review

Abstract

In this review article various applications and preparation methods of copper chromite catalysts have been discussed. While discussing it is concluded that copper chromite is a versatile catalyst which not only catalyses numerous processes of commercial importance and national program related to defence and space research but also finds applications in the most concerned problem worldwide i.e. environmental pollution control. Several other very useful applications of copper chromite catalysts are in production of clean energy, drugs and agro chemicals, etc. Various preparation methods about 15 have been discussed which depicts clear idea about the dependence of catalytic activity and selectivity on way of preparation of catalyst. In view of the globally increasing interest towards copper chromite catalysis, reexamination on the important applications of such catalysts and their useful preparation methods is thus the need of the time. This review paper encloses 369 references including a well-conceivable tabulation of the newer state of the art.

Water: Friend or Foe in Catalytic Hydrogenation? A Case Study Using Copper Catalysts

“…Typically, Ni systems are utilized for aldehyde hydrogenation, however, they sometimes, due to their high activity, lead to abnormal levels of side products, such as esters, acetals, and other aldol condensation type products. Consequently, Cu has been used in certain instances for the hydrogenation of aldehydes or similar compounds to limit such side reaction products [3,4].…”

“…Typically, copper chromite catalysts have been used for hydrogenation applications, however, Cr has been identified as being environmentally unfriendly [17]. Nonetheless, copper chromite catalysts are still being used in various catalytic processes globally [4]. Thus, various other relatively safer supports have been studied to replace chromium, e.g., alumina [18].…”

Synthesis of Cu-Chromite Catalyzer by Citrate Sol-Gel

“…FWHM, depends on the number of reflecting crystalline plane. Scherer formula relates the crystalline grain size to width of maximum peak in half height and other conditions [6]. Table 1 shows the FWHM details.…”

Transparent ferrimagnetic semiconducting CuCr2O4 thin films by atomic layer deposition

“…15 Moreover, CuCr 2 O 4 and related materials have found usable as burn rate modifiers in solid propellant processing for space launch vehicles. [16][17][18] The various application possibilities and corresponding fabrication challenges were recently summarized in the review article of Prasad and Singh, 19 underlining the importance of further endeavors to explore CuCr 2 O 4 for its improved functionalities.…”