Synthesis of carbon-supported copper catalyst and its catalytic performance in methanol dehydrogenation

Nonoxidative Dehydrogenation of Methanol to Methyl Formate through Highly Stable and Reusable CuMgO-Based Catalysts

“…dimethyl ether), and higher temperatures favor gaseous products such as CO or CO 2 . It has been demonstrated that copper was the active species for MF syntheses − and previous studies − also showed that metallic copper was the major active species for the methanol dehydrogenation reaction. Besides copper, there are other materials that can act as catalysts for this reaction, including palladium, nickel, and platinum .…”

Sol-Gel Synthesis and Characterization of the Cu-Mg-O System for Chemical Looping Application

“…If the bulk copper undergoes melting at the temperature of 1083 • C, then the copper particles of 20 nm in size should start to melt at ~1000 • C. Further decrease in particle size to 10 and 5 nm is expected to result in the melting temperature values of ~750 and ~500 • C. Therefore, an approaching of the process temperature to the expected melting temperature should lead to a noticeable increase in the lability of copper species and their agglomeration into the thermodynamically favorable large particles. In order to solve the mentioned problem, copper and its oxide are deposited on various supports, and the metal-support interactions play the key roles here, providing the long-term stability of the supported copper species during the catalyst exploitation [1,9,30,[32][33][34][43][44][45].…”

“…Titanium oxide is less thermally stable; however, it provides the chemical stability of the copper catalysts towards poisoning [51][52][53]. Oppositely, carbonaceous supports possess high thermal stability and attractive mechanical and catalytic properties [30,32,[54][55][56].…”

“…In these cases, the main advantages of using copper as an active component are its low cost if compared with precious metals, high dispersity of copper species, and their strong interaction with the support that allows tuning the catalytic properties. Besides the mentioned applications, copper-based catalysts are highly efficient in the processes of total and partial (selective) oxidation [ 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 ], hydrogenation [ 26 , 27 , 28 , 29 ], dehydrogenation of alcohols [ 30 , 31 , 32 , 33 ], reduction of nitrogen oxides [ 34 , 35 ], etc.…”

“…Therefore, an approaching of the process temperature to the expected melting temperature should lead to a noticeable increase in the lability of copper species and their agglomeration into the thermodynamically favorable large particles. In order to solve the mentioned problem, copper and its oxide are deposited on various supports, and the metal-support interactions play the key roles here, providing the long-term stability of the supported copper species during the catalyst exploitation [ 1 , 9 , 30 , 32 , 33 , 34 , 43 , 44 , 45 ].…”