Copper Phyllosilicates-Derived Catalysts in the Production of Alcohols from Hydrogenation of Carboxylates, Carboxylic Acids, Carbonates, Formyls, and CO2: A Review

Abstract

Copper phyllosilicates-derived catalysts (CuPS-cats) have been intensively explored in the past two decades due to their promising activity in carbonyls hydrogenation. However, CuPS-cats have not been completely reviewed. This paper focuses on the aspects concerning CuPS-cats from synthesis methods, effects of preparation conditions, and dopant to catalytic applications of CuPS-cats. The applications of CuPS-cats include the hydrogenation of carboxylates, carboxylic acids, carbonates, formyls, and CO2 to their respective alcohols. Besides, important factors such as the Cu dispersion, Cu+ and Cu0 surface area, particles size, interaction between Cu and supports and dopants, morphologies, and spatial effect on catalytic performance of CuPS-cats are discussed. The deactivation and remedial actions to improve the stability of CuPS-cats are summarized. It ends up with the challenges and prospective by using this type of catalyst.

Alkoxide-Decorated Copper Nanoparticles on Amidine-Modified Polymers as Hydrogenation Catalysts for Enabling H2 Heterolysis

“…Cu-based heterogeneous catalysts have been used in the chemical industry to hydrogenate unsaturated C–O bonds. − The abundant and inexpensive nature of Cu has attracted much attention for novel catalyst designs for hydrogenation despite significant progress in developing precious metals with outstanding functions as promising catalysts. − In this context, Cu-based catalysts with ZnO counterparts have been recognized as powerful materials for hydrogenating CO 2 to methanol for decades. Recently, tremendous efforts have been devoted to establishing Cu-based catalysts with novel metallo-counterparts for a range of CO 2 transformations. − The wide-ranging availability has increased the indispensability of Cu-based catalysts for large-scale CO 2 capture and utilization, in conjunction with renewable energy directed toward net-zero CO 2 emissions. − …”

Ceria‐Modified Copper Phyllosilicate Catalyst for One‐Pot Hydroamination of 5‐HMF with Nitro‐Compounds

“…[27] Among the different non-noble metal-based catalytic systems, the hydrosilicate materials -natural minerals, which can be obtained synthetically, are actively used in heterogeneous catalysis. [28] Copper phyllosilicates (PhylS) with the chrysocolla-like structure Cu 2 Si 2 O 5 (OH) 2 • xH 2 O were shown to be the precursors of active catalysts for hydrogenation of esters [29,29,30] and alkynes, [31] as well as for the hydrogenolysis processes. [8,32,33] Recently, we have shown that the copper phyllosilicate based materials are active catalysts in a liquidphase hydrogenation of different nitro-arenes, [34] including even dinitro-and trinitrobenzene.…”

Microwave Synthesis of Copper Phyllosilicates as Effective Catalysts for Hydrogenation of C≡C Bonds

“…Among the diversity of different copper catalytic systems, copper phyllosilicates occupy a special place due to their unique structure. Copper phyllosilicate, or chrysocolla, is a silica-supported copper material with a sandwich structure consisting of octahedra CuO 6 layers possessed between tetrahedra SiO 4 layers [ 6 ]. In contrast to traditional SiO 2 -supported copper oxide, phyllosilicate has an improved thermal stability, higher copper species dispersion, and larger specific surface area due to its layered structure [ 7 , 8 , 9 ].…”