Green and sustainable methanol production from CO 2 over magnetized Fe Cu/core–shell and infiltrate mesoporous silica-aluminosilicates

Umchoo, Wasakon; Sriakkarin, Chuleehat; Donphai, Waleeporn; Warakulwit, Chompunuch; Poo‐arporn, Yingyot; Jantaratana, Pongsakorn; Witoon, Thongthai; Chareonpanich, Metta

doi:10.1016/j.enconman.2017.12.101

Cited by 17 publications

(7 citation statements)

References 32 publications

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“…[236] In a different study, methanol and dimethyl ether (DME) were produced at between 180-260 °C by 10Fe-10Cu/silicaaluminosilicate core-shell and 10Fe-10Cu/silica-aluminosilicate infiltrated catalysts from CO 2 with the assistance of a magnetic field. [237] While the percentage of CO 2 conversion was found to be similar for both catalysts, the core@shell catalyst was more selective for methanol while the infiltrated catalyst was more ) Loading of Pt nanoparticles on CeO2, f,g) silica shell coating on CeO2-Pt, h,i) settling of Co nanoparticles on CeO2-Pt@mSiO2, and j) CeO2-Pt@mSiO2-Co nanoparticles. Reproduced with permission.…”

Section: Applications Of Nanoreactors For Co 2 Hydrogenationmentioning

confidence: 91%

“…In a different study, methanol and dimethyl ether (DME) were produced at between 180–260 °C by 10Fe‐10Cu/silica‐aluminosilicate core‐shell and 10Fe‐10Cu/silica‐aluminosilicate infiltrated catalysts from CO 2 with the assistance of a magnetic field. [ 237 ] While the percentage of CO 2 conversion was found to be similar for both catalysts, the core@shell catalyst was more selective for methanol while the infiltrated catalyst was more selective for DME. The researchers tested both catalysts at a temperature range of 180–260 °C and a total pressure of 10 bar.…”

Section: Nanoreactorsmentioning

confidence: 99%

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Nanoreactor Engineering Can Unlock New Possibilities for CO₂ Tandem Catalytic Conversion to CC Coupled Products

Göksu

Liu

et al. 2023

Global Challenges

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Climate change is becoming increasingly more pronounced every day while the amount of greenhouse gases in the atmosphere continues to rise. CO 2 reduction to valuable chemicals is an approach that has gathered substantial attention as a means to recycle these gases. Herein, some of the tandem catalysis approaches that can be used to achieve the transformation of CO 2 to C-C coupled products are explored, focusing especially on tandem catalytic schemes where there is a big opportunity to improve performance by designing effective catalytic nanoreactors. Recent reviews have highlighted the technical challenges and opportunities for advancing tandem catalysis, especially highlighting the need for elucidating structure-activity relationships and mechanisms of reaction through theoretical and in situ/operando characterization techniques. In this review, the focus is on nanoreactor synthesis strategies as a critical research direction, and discusses these in the context of two main tandem pathways (CO-mediated pathway and Methanol-mediated pathway) to C-C coupled products.

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Section: Applications Of Nanoreactors For Co 2 Hydrogenationmentioning

confidence: 91%

Section: Nanoreactorsmentioning

confidence: 99%

Nanoreactor Engineering Can Unlock New Possibilities for CO₂ Tandem Catalytic Conversion to CC Coupled Products

Göksu

Liu

et al. 2023

Global Challenges

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“…The results were listed in Figures 6 and 7 and Table S2. The total basicity and acidity could be calculated by the amounts of pulse adsorption (Table S2) [50,51]. From the aspect of basicity, the Au 25 /MgAl-300 catalyst exhibited the maximum basic sites, with the adsorbed CO 2 of 1130 µmol/g.…”

Section: Characterizations Of Supported Au 25 Nanoclustersmentioning

confidence: 99%

Metal-Support Synergy of Supported Gold Nanoclusters in Selective Oxidation of Alcohols

Liu

Tan

et al. 2020

Catalysts

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Gold catalysts have been reported to exhibit good performance in aerobic oxidation of alcohols, but the intrinsic origin of the catalytic reactivity is still illusive. The catalyst preparation method, the morphology of the gold particles, and even the support might be key factors that determine the activity. Here, we prepared a series of gold catalysts with different supports, i.e., the hydrotalcite (HT), ZnO, MgO, Al2O3, and SiO2, by using the atomically controlled Au25 nanoclusters (NCs) as the gold precursor. The characterization results of the X-ray diffraction (XRD), UV-vis and transmission electron microscopy (TEM) show that the gold particles were mostly uniformly distributed on the supports, with a mean particle size within 3 nm. In aerobic oxidation of benzyl alcohol, the MgAl-HT- and Al2O3-supported Au25 NCs display good performances, with turnover frequency (TOF) values of ~2927 and 2892 h−1, respectively, whereas the SiO2-, MgO-, and ZnO-supported analogues show much inferior activity. The high resolution TEM and X-ray photoelectron spectra (XPS) results suggest that the interactions between gold and the supports in different samples are differing, which influences the morphology and the nature of gold. Our results further point to the importance of acid-base property of the support and the metal-support synergy rather than the gold particle size alone in achieving high-performance in selective alcohol oxidation. Moreover, this work provided a good way to design gold catalysts with controllable sizes that is crucial for understanding the reaction process in aerobic oxidation of alcohol.

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“…The CO 2 can be applied in two ways: first for the use of CO 2 without any conversion for certain applications such as enhanced oil recovery by CO 2 flooding or physical solvent (e.g., supercritical solvent); − second, it can be used as a feedstock for the synthesis of chemicals and fuels via carboxylation and reduction reactions. In this regard, bulk chemicals such as methanol, dimethyl ether (DME), urea, ethylene, polycarbonate, and other chemicals with lesser market potentials like acetic acid, formic acid, acrylic acid, salicylic acid, methyl formate, ethylene carbonate, and dimethyl carbonate can be produced. ,− Among them, methanol and DME can be utilized as alternative fuels instead of gasoline and diesel/LPG, respectively . It can be also employed for mineralization (production of carbonates like calcite and magnesite) and microelectronic applications. , As a consequence of this valorization by conversion of CO 2 , its impact on global warming and climate change can be minimized.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress on Pebax-Based Thin Film Nanocomposite Membranes for CO₂ Capture: The State of the Art and Future Outlooks

et al. 2022

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Over the past three decades, membrane technology has gained increasing relevance owing to its green and energy-efficient process. Among the existing membranes, thin-film composite/nanocomposite (TFC/TFN) membranes are the subject of an increasing number of studies due to their high gas flux, high selectivity, cost reduction, and the possibility to independently control and optimize the materials of each layer. This review examines the advancement in TFC/TFN membranes for CO2 sequestration. The structure of the multilayer composite membranes and the characteristics of each layer are initially presented. Various top-down and bottom-up approaches for the preparation of composite membranes are discussed in detail. The factors influencing TFC membranes are highlighted. The focus of this research is on the separation properties of the Pebax polymer. The impacts of nanofillers on the separation performance of Pebax-based TFN membranes are meticulously inspected. Finally, the most important challenges and future outlooks to improve the membrane performance are presented.

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Green and sustainable methanol production from CO 2 over magnetized Fe Cu/core–shell and infiltrate mesoporous silica-aluminosilicates

Cited by 17 publications

References 32 publications

Nanoreactor Engineering Can Unlock New Possibilities for CO₂ Tandem Catalytic Conversion to CC Coupled Products

Nanoreactor Engineering Can Unlock New Possibilities for CO₂ Tandem Catalytic Conversion to CC Coupled Products

Metal-Support Synergy of Supported Gold Nanoclusters in Selective Oxidation of Alcohols

Recent Progress on Pebax-Based Thin Film Nanocomposite Membranes for CO₂ Capture: The State of the Art and Future Outlooks

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Green and sustainable methanol production from CO 2 over magnetized Fe Cu/core–shell and infiltrate mesoporous silica-aluminosilicates

Cited by 17 publications

References 32 publications

Nanoreactor Engineering Can Unlock New Possibilities for CO2 Tandem Catalytic Conversion to CC Coupled Products

Nanoreactor Engineering Can Unlock New Possibilities for CO2 Tandem Catalytic Conversion to CC Coupled Products

Metal-Support Synergy of Supported Gold Nanoclusters in Selective Oxidation of Alcohols

Recent Progress on Pebax-Based Thin Film Nanocomposite Membranes for CO2 Capture: The State of the Art and Future Outlooks

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Product

Resources

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Nanoreactor Engineering Can Unlock New Possibilities for CO₂ Tandem Catalytic Conversion to CC Coupled Products

Nanoreactor Engineering Can Unlock New Possibilities for CO₂ Tandem Catalytic Conversion to CC Coupled Products

Recent Progress on Pebax-Based Thin Film Nanocomposite Membranes for CO₂ Capture: The State of the Art and Future Outlooks