Direct Synthesis of Diphenyl Carbonate with Heterogeneous Catalyst and Optimal Synthesis Conditions of the Support Prepared by Sol-gel Method

Guo, Honglian; Chen, Hongping; Liang, Yeru; Yu-lan, Rui; Lü, Jingde; Fu, Zhentao

doi:10.1016/s1004-9541(08)60067-1

Cited by 13 publications

(6 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to the peak areas and the percents in mass of phenol and DPC, the DPC yield in mass can be determined to be 26.31% by equations (1) and (2) [9] , which is much higher compared to that by other catalyst carriers.…”

Section: Catalysis Evaluation Of the Supported Catalysts In The Synthmentioning

confidence: 99%

“…Altering the chemical composition of the aerogel framework to generate catalytically selective high surface area materials is an area of current topical interest. A variety of aerogels have been synthesized and characterized for their use in heterogeneous catalysis as both catalysts and catalysts carriers [9,10] .…”

Section: Introductionmentioning

confidence: 99%

“…The transition metal oxides CuO, CoO and MnO show a certain degree of catalytic activity in material synthesis [4][5][6]9] . Combining them with SiO 2 to form CuOCoO-MnO/SiO 2 nanocomposite aerogels may produce a novel catalyst carrier for the synthesis of diphenyl carbonate (DPC) and other fi elds of catalysis.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Preparation of CuO-CoO-MnO/SiO2 nanocomposite aerogels as catalyst carriers and their application in the synthesis of diphenyl carbonate

Zhao

Liang

Jia

et al. 2011

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

Self Cite

View full text Add to dashboard Cite

CuO-CoO-MnO/SiO 2 nanocomposite aerogels were prepared by using tetraethyl orthosilicate (TEOS) as Si source, and aqueous solution of Cu, Co and Mn acetates as transition metal sources via solgel process and supercritical drying (SCD) technique. The effect of synthesis conditions on gelation was investigated. Moreover, the composition of the CuO-CoO-MnO/SiO 2 nanocomposite aerogels was characterized by electron dispersive spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS), and the specific surface area of the nanocomposite aerogels was determined by the Brunauer-Emmett-Teller (BET) method. Diphenyl carbonate (DPC) as the product was analyzed by gas chromatography (GC). The experimental results show that the range of optimal temperature for gelation is 30-45 ℃, and the pH is 3.0-4.5. CuO-CoO-MnO/SiO 2 nanocomposite aerogels are porous with a specifi c surface area of 384.9-700.6 m 2 /g. Compared to CO 2 SCD, ethanol SCD is even favorable to the formation of aerogel with high specifi c surface area. The transition metals content in the nanocomposite aerogels can be controlled to be 0.71at%-13.77at%. With CuO-CoO-MnO/SiO 2 nanocomposite aerogels as catalyst carrier, the yield of DPC is in direct proportion to the atomic fraction of transition metals in the nanocomposite aerogels, and it is up to 26.31 mass%, which is much higher than that via other porous carriers.

show abstract

Section: Catalysis Evaluation Of the Supported Catalysts In The Synthmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Preparation of CuO-CoO-MnO/SiO2 nanocomposite aerogels as catalyst carriers and their application in the synthesis of diphenyl carbonate

Zhao

Liang

Jia

et al. 2011

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

Self Cite

View full text Add to dashboard Cite

show abstract

“…In order to improve the yield, the Cu-Co-Mn mixed oxides and hopcalite were used as support of the catalyst for the synthesis of diphenyl carbonate (DPC) by oxidative carbonylation of phenol method [20,21] . The difference of the both catalysts was studied in this work.…”

Section: Introductionmentioning

confidence: 99%

Comparation of Cu-Co-Mn Mixed Oxides and Hopcalite as Support in Synthesis of Diphenyl Carbonate by Oxidative Carbonylation of Phenol

Guo¹,

Lu²,

et al. 2013

AMR

View full text Add to dashboard Cite

The difference of Cu-Co-Mn mixed oxides and hopcalite as support in synthesis of diphenyl carbonate by oxidative carbonylation of phenol was studied. The catalysts were characterized by transmission electron microscopy, scanning electron microscopy, X-ray power diffraction, and X-ray photoelectron spectroscopy. The results show that the average particle diameter of the former catalyst is about 40 nm, whereas the other catalyst is about 0.5 μm. The main crystal phase in the former catalyst is Co2MnO4and Pd0.5Pd3O4, which in the latter catalyst is CuMn2O4, CoMn2O4and Pd0.5Pd3O4.The oxygen atoms lose electrons and form oxygen vacancies in.Pd0.5Pd3O4and Co2MnO4of the former catalyst, which destroys the crystal integrity and prompts the oxygen adsorption on the crystal surface. The oxygen atoms lose electrons and form oxygen vacancies in.Pd0.5Pd3O4of the latter catalyst. Finally, it was found that the difference of the yield and selectivity of the both catalysts was not remarkable.

show abstract

“…Homogeneous palladium compounds with cocatalysts have been reported to be the highly efficient catalytic system for this process [4] . To facilitate the separation of catalysts from products and increase the thermal stability and amenability of the catalyst in the continuous processing, heterogenization of homogeneous catalysts was also explored [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] . Iwane et al [5] used palladium catalysts supported by porous carriers,such as carbon, alumina, silica and the like, to promote the synthesis of DPC and the yield of DPC could reach 12.6%.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Diphenyl Carbonate by Oxidative Carbonylation of Phenol with Pd-Co/Hopcalite

Guo¹,

Lu²,

Wu³

et al. 2013

AMR

View full text Add to dashboard Cite

Hopcalite mixed oxides were used as support of the catalyst for the synthesis of diphenyl carbonate (DPC) by oxidative carbonylation of phenol .The catalyst was characterized by scanning electron microscopy (SEM), X-ray power diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The results show that the size of the particles is well-distributed and the physical structure is favorable, which contribute to the reaction efficiently. The main crystal phase in catalyst is CuMn2O4, CoMn2O4and Pd0.5Pd3O4, and the valency of Mn and Co remains unchanged. Finally, the synthesis of DPC was carried out and it was found that the yield and selectivity could reach 43.5% and 99.6%, respectively.

show abstract

Direct Synthesis of Diphenyl Carbonate with Heterogeneous Catalyst and Optimal Synthesis Conditions of the Support Prepared by Sol-gel Method

Cited by 13 publications

References 9 publications

Preparation of CuO-CoO-MnO/SiO2 nanocomposite aerogels as catalyst carriers and their application in the synthesis of diphenyl carbonate

Preparation of CuO-CoO-MnO/SiO2 nanocomposite aerogels as catalyst carriers and their application in the synthesis of diphenyl carbonate

Comparation of Cu-Co-Mn Mixed Oxides and Hopcalite as Support in Synthesis of Diphenyl Carbonate by Oxidative Carbonylation of Phenol

Synthesis of Diphenyl Carbonate by Oxidative Carbonylation of Phenol with Pd-Co/Hopcalite

Contact Info

Product

Resources

About