Ceria nanostructured catalysts for conversion of methanol and carbon dioxide to dimethyl carbonate

Al-Darwish, Jawad; Senter, Matthew; Lawson, Shane; Rezaei, Fateme; Rownaghi, Ali A.

doi:10.1016/j.cattod.2019.06.013

Cited by 49 publications

(38 citation statements)

References 57 publications

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“…For example, Urakawa et al reported that the addition of rare earth metals (La, Gd, and Pr) can effectively enhance the catalyst stability by improving the methoxy species adsorption strength while preventing the adsorption of 2-picolinamide-like species, as shown in Figure c . Compared with pure CeO 2 , doping metals such as Zr, Zn, or Ti into CeO 2 enhances the catalytic activity via increasing oxygen vacancy concentration and promoting the surface acid–base sites, ,, whereas the CeO 2 nanorods doped with NiO, CuO, and CoO or CaO showed a worse catalytic activity than pure CeO 2 nanorods with the (110)-dominated surface structures . The authors claimed that doping NiO, CuO, CaO, and CoO would lower the ceria (110) surface area and reduce the oxygen vacancy density, and thus, the reaction preferred to occur at the more thermodynamically stable (100) plane.…”

Section: Organic Synthesis Using Co2 As a Carbon Feedstockmentioning

confidence: 99%

Ceria-Based Materials for Thermocatalytic and Photocatalytic Organic Synthesis

et al. 2021

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Value-added chemicals, fuels, and pharmaceuticals synthesized by organic transformation from raw materials via catalytic techniques have attracted enormous attention in the past few decades. Heterogeneous catalysts with high stability, long cycling life, good environmental-friendliness, and economic efficiency are greatly desired to accomplish the catalytic organic transformations. With the advantages of reversible Ce3+/Ce4+ redox pairs, tailorable oxygen vacancies, and surface acid–base properties, ceria-based catalysts have been actively investigated in the fields of catalytic organic synthesis. In this Review, we summarize the fundamentals and latest applications of ceria-based heterogeneous catalysts for organic transformations via thermocatalytic and photocatalytic routes. The fabricating approaches of various ceria and ceria-based catalysts and their structure/composition–activity relationship are discussed and prospected. The advanced characterization techniques and theoretical methods for reaction mechanism studies over CeO2-based catalysts are summarized and discussed. This comprehensive Review provides a basic understanding of the structure–performance relationships of ceria-based catalysts for organic synthesis. In addition, it also provides some insights and outlooks in the design and research direction in the ceria-based catalysts with better performance.

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Section: Organic Synthesis Using Co2 As a Carbon Feedstockmentioning

confidence: 99%

Ceria-Based Materials for Thermocatalytic and Photocatalytic Organic Synthesis

et al. 2021

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“…e FTIR spectra for the HPW and HPW@CoCeO were also characterized to illustrate the HPW had been embedded in the CoCeO framework, and the results are presented in Figure 2. e strong spectra at 750 cm −1 were ascribed to the Ce-O bonds [29], and the spectra in the range of 500-580 cm −1 were assigned to the Co-O bonds [30]. Moreover, the absorption peak corresponding to Keggintype HPW emerged at 982 cm −1 , 889 cm −1 , and 801 cm −1 assigned to W-O, W-O b -W, and W-O c -W, respectively [31].…”

Section: Catalyst Characterizationmentioning

confidence: 99%

Bimetallic MOF-Derived Synthesis of Cobalt-Cerium Oxide Supported Phosphotungstic Acid Composites for the Oleic Acid Esterification

Zhang

Yang

Yao

et al. 2021

Journal of Chemistry

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The impregnation of phosphotungstic acid (HPW) with porous cobalt-cerium oxide (HPW@CoCeO) has been prepared by pyrolysis of CoCe-MOF and used for the production of methyl oleate from oleic acid and methanol. FTIR, XRD, SEM, TEM, N2 adsorption/desorption, and NH3-TPD were characterized for the prepared composites. Simultaneously, the effects of reaction time, substrate molar ratio, temperature, and catalyst loading on catalytic activity were highlighted, and the conversion of 67.2% was reached after 4 h at 60°C. Importantly, HPW@CoCeO was reusabe and reused more than eight times, and the oleic acid conversion could be maintained at 61.8% without significant activity loss. Thus, the HPW@CoCeO composite could be used as acid catalysts for sustainable energy production.

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“…Nevertheless, Al-Darwish et al recently found that a CeO 2 catalyst with an octahedral morphology presented a higher DMC yield (0.4%) than that of the cube (0.2%) because of its higher surface area (23 m 2 g −1 for the octahedron, and 8 m 2 g −1 for the cube). 103…”

Section: Strategies For the Improvement Of Direct Dmc Synthesis From Co2 And Methanolmentioning

confidence: 99%

Catalytic processes for the direct synthesis of dimethyl carbonate from CO₂ and methanol: a review

et al. 2022

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Ceria nanostructured catalysts for conversion of methanol and carbon dioxide to dimethyl carbonate

Cited by 49 publications

References 57 publications

Ceria-Based Materials for Thermocatalytic and Photocatalytic Organic Synthesis

Ceria-Based Materials for Thermocatalytic and Photocatalytic Organic Synthesis

Bimetallic MOF-Derived Synthesis of Cobalt-Cerium Oxide Supported Phosphotungstic Acid Composites for the Oleic Acid Esterification

Catalytic processes for the direct synthesis of dimethyl carbonate from CO₂ and methanol: a review

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Ceria nanostructured catalysts for conversion of methanol and carbon dioxide to dimethyl carbonate

Cited by 49 publications

References 57 publications

Ceria-Based Materials for Thermocatalytic and Photocatalytic Organic Synthesis

Ceria-Based Materials for Thermocatalytic and Photocatalytic Organic Synthesis

Bimetallic MOF-Derived Synthesis of Cobalt-Cerium Oxide Supported Phosphotungstic Acid Composites for the Oleic Acid Esterification

Catalytic processes for the direct synthesis of dimethyl carbonate from CO2 and methanol: a review

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Catalytic processes for the direct synthesis of dimethyl carbonate from CO₂ and methanol: a review