Mesoporous bimetallic PdCl2-CuCl2 catalysts for dimethyl carbonate synthesis by vapor phase oxidative carbonylation of methanol

The effects of promoters over PdCl2-CuCl2/HMS catalysts for the synthesis of diethyl carbonate by oxidative carbonylation of ethanol

“…As shown in Fig. 4, the sample without TEAB promotion showed the principal Cu 2p3/2 line centered around 934.0 eV, which was assigned to Cu 2+ cations [6,20,21]. The Cu 2p3/2 peak of the catalyst with TEAB located at 932.9 eV, which shifted towards lower binding energy.…”

“…There are several methods for the DEC synthesis, such as a phosgene process [3], oxidative carbonylation of ethanol [4][5][6][7], carbonylation of ethyl nitrite [8], and an ester exchange process [9]. Among them, the vapor phase oxidative carbonylation of ethanol represents one of the proposed favorable processes.…”

Highly-controlled grafting of mono and dicationic 4,4′-bipyridine derivatives on SBA-15 for potential application as adsorbent of CuCl2 from ethanol solution

“…The immobilization of metallic complexes on the surface of modified silicas plays a very important role in many areas of chemistry, such as heterogeneous catalysis, in the synthesis of supported metal nanoparticles, in the adsorption process of metal ions, and in the development of fluorescent devices [33][34][35][36][37][38]. Xu et al prepared ZnCl 3 (4-methyl-4,4 0 -bipyridinium) complexes with photoluminescent properties [39], and Yuan et al reported the immobilization of CuCl 2 in mesoporous molecular sieves organofunctionalized with 3-aminopropyltrimethoxysilane for the catalytic carbonylation of methanol to produce dimethyl carbonate [33].…”

Direct synthesis of dimethyl carbonate over activated carbon supported Cu-based catalysts

“…Furthermore, Cu-based catalysts are generally known as very active for CO 2 -involved reactions, and several research results concerning CO 2 adsorption on Cu-based surfaces have been reported [20,21]. Recently, AC supported cupric chloride is one of the catalysts under intensive investigation, including CuCl/AC [22,17], CuCl 2 -PdCl 2 /AC [23], CuCl/composite supports, [Cu(OCH 3 )(pyridine)Cl] 2 /AC [24], and so on [25][26][27]. They have been used for DMC synthesis by oxidative carbonylation of methanol (CH 3 OH + O 2 + CO).…”