Carbonylation of Dimethyl Ether on Ag/ Cs1.5H1.5PW12O40: In-Situ FTIR Spectroscopy Study of the Ag-Carbonyls

G.G. Volkova; E.A. Paukshtis

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Carbonylation of Dimethyl Ether on Ag/ Cs_1.5H_1.5PW₁₂O₄₀: In-Situ FTIR Spectroscopy Study of the Ag-Carbonyls

机译：Ag / Cs _{1.5 H _{1.5 PW _{12 O _{40 上二甲醚的羰基化：原位FTIR光谱研究银-碳原子数}}}}

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Halide-free carbonylation of dimethyl ether (DME) to methyl acetate over heterogeneous catalysts offers a potentially green route to the production of important industrial chemicals. Previously we have shown that the addition of 1% of silver to Cs1.5H1.5PW12O40 led to an increase in activity by a factor of two. Formation of silver carbonyl clusters on the surface of the catalyst was demonstrated by in situ FTIR spectroscopy. The v(CO) of silver carbonyl was observed at 2188 cm-1 and may be explained by the formation of cationic silver carbonyl Ag(CO)+ on the surface of the acidic cesium salt of 12-tungstophosphoric acid. In view of the increased efficiency, the novel bifunctional catalyst Ag/ Cs1.5H1.5PW12O40 is expected to hold significant promise for practical use in new processes of basic organic chemistry.

机译：通过非均相催化剂将二甲醚（DME）的无卤羰基化为乙酸甲酯，为重要的工业化学品的生产提供了一条潜在的绿色途径。以前我们已经表明，向Cs1.5H1.5PW12O40中添加1％的银会导致活性增加两倍。通过原位FTIR光谱证实了在催化剂表面上羰基银簇的形成。在2188 cm-1处观察到羰基银的v（CO），这可以通过在12-钨磷酸的铯酸铯盐表面上形成阳离子羰基银Ag（CO）+来解释。考虑到效率的提高，新型双功能催化剂Ag / Cs1.5H1.5PW12O40有望在基础有机化学的新工艺中得到实际应用。

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《Catalysis for Sustainable Energy》 |2017年第1期|共3页
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G.G. Volkova; E.A. Paukshtis;
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中图分类物理化学（理论化学）、化学物理学;
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1. Carbonylation of dimethyl ether on solid Rh-promoted Cs-salt of Keggin 12-H_3PW_(12)O_(40): A solid-state NMR study of the reaction mechanism [J] . Luzgin M.V., Kazantsev M.S., Volkova G.G., Journal of Catalysis . 2011,第1期

机译：Keggin 12-H_3PW_（12）O_（40）的固体Rh促进的Cs盐上二甲醚的羰基化：反应机理的固态NMR研究
2. Carbonylation of dimethyl ether on Rh/Cs _2HPW _(12)O _(40): Solid-state NMR study of the mechanism of reaction in the presence of a methyl iodide promoter [J] . Kazantsev M.S., Luzgin M.V., Volkova G.G., Journal of Catalysis . 2012,第Null期

机译：Rh / Cs _2HPW _（12）O _（40）上二甲醚的羰基化：在甲基碘促进剂存在下反应机理的固态NMR研究
3. Solid-state NMR study of the kinetics and mechanism of dimethyl ether carbonylation on cesium salt of 12-tungstophosphoric acid modified with Ag, Pt, and Rh [J] . Mikhail V. Luzgin, Maxim S. Kazantsev, Galina G. Volkova, Journal of Catalysis . 2013,第Null期

机译：Ag，Pt和Rh修饰的12钨磷酸铯盐上二甲醚羰基化反应的动力学和机理的固态NMR研究
4. Methylal Synthesis over Cs_xH_(3-x)PW_(12)O_(40) (x = 1,1.5,2,2.5, and 3) Salts and Cs_(2.5)H_(0.5)PW_(12)O_(40)/SiO_2 Catalysts [C] . Zhanghuai Suo, Mingshan Jin, Yonggen Weng Asia-Pacific Congress on Catalysis . 2003

机译：CS_XH_（3-X）PW_（12）O_（40）（x = 1,1.5,2,2.5，和3）盐和CS_（2.5）H_（0.5）PW_（12）o_（40）/ SiO_2催化剂
5. FLUID PHASE EQUILIBRIA STUDIES FOR THE BINARY SYSTEMS CARBON DIOXIDE/N-BUTANE, DIMETHYL ETHER/N-BUTANE AND DIMETHYL ETHER/1-BUTENE (THERMODYNAMICS). [D] . POZO, MARIA ELENA. 1986

机译：二氧化碳/正丁烷，二甲醚/正丁烷和二甲醚/ 1-丁烯二元体系的流体相平衡研究（热力学）。
6. Gas-Phase Synthesis of Dimethyl Carbonate from Methanol and Carbon Dioxide Over Co1.5pw12o40 Keggin-Type Heteropolyanion [O] . Ahmed Aouissi, Zeid Abdullah Al-Othman, Amro Al-Amro 2010

机译：Co1.5pw12o40 Keggin型杂多阴离子由甲醇和二氧化碳气相合成碳酸二甲酯
7. Gas-Phase Synthesis of Dimethyl Carbonate from Methanol and Carbon Dioxide Over Co1.5pw12o40 Keggin-Type Heteropolyanion [O] . Aouissi, Ahmed, Al-Othman, Zeid Abdullah, Al-Amro, Amro 2010

机译：Co1.5pw12o40 Keggin型杂多阴离子由甲醇和二氧化碳气相合成碳酸二甲酯

Carbonylation of Dimethyl Ether on Ag/ Cs1.5H1.5PW12O40: In-Situ FTIR Spectroscopy Study of the Ag-Carbonyls

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Carbonylation of Dimethyl Ether on Ag/ Cs_1.5H_1.5PW₁₂O₄₀: In-Situ FTIR Spectroscopy Study of the Ag-Carbonyls