A highly selective and stable ZnO-ZrO<sub>2</sub>solid solution catalyst for CO<sub>2</sub>hydrogenation to methanol

Wang, Jijie; Li, Guanna; Li, Zelong; Chun, Tang; Feng, Zhaochi; An, Hongyu; Liu, Hailong; Liu, Taifeng; Li, Can

doi:10.1126/sciadv.1701290

Cited by 838 publications

(618 citation statements)

References 53 publications

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“…3b). These results suggest that ZnO was highly dispersed inside the lattice of ZrO 2 to form solid solution, and this phenomenon was also reported previously 30,44 .…”

Section: Resultssupporting

confidence: 89%

Single-pass transformation of syngas into ethanol with high selectivity by triple tandem catalysis

et al. 2020

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Synthesis of ethanol from non-petroleum carbon resources via syngas (a mixture of H 2 and CO) is an important but challenging research target. The current conversion of syngas to ethanol suffers from low selectivity or multiple processes with high energy consumption. Here, we report a high-selective conversion of syngas into ethanol by a triple tandem catalysis. An efficient trifunctional tandem system composed of potassium-modified ZnO-ZrO 2 , modified zeolite mordenite and Pt-Sn/SiC working compatibly in syngas stream in one reactor can afford ethanol with a selectivity of 90%. We demonstrate that the K + -ZnO-ZrO 2 catalyses syngas conversion to methanol and the mordenite with eight-membered ring channels functions for methanol carbonylation to acetic acid, which is then hydrogenated to ethanol over the Pt-Sn/SiC catalyst. The present work offers an effective methodology leading to high selective conversion by decoupling a single-catalyst-based complicated and uncontrollable reaction into well-controlled multi-steps in tandem in one reactor.

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“…3b). These results suggest that ZnO was highly dispersed inside the lattice of ZrO 2 to form solid solution, and this phenomenon was also reported previously 30,44 .…”

Section: Resultssupporting

confidence: 89%

Single-pass transformation of syngas into ethanol with high selectivity by triple tandem catalysis

et al. 2020

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“…Thee ffective conversion of CO 2 into liquid fuels and chemicals is of paramount importance for mitigating the global warming and energy supply problems. [19][20][21][22][23][24][25][26][27] Recent successes in the transformation of CO 2 into C 2 products has added additional spotlights on this area. C 2 compounds,r elative to C 1 species,a re really high-valueadded products and can be used as entry platform chemicals for existing high-value products.…”

Section: Introductionmentioning

confidence: 99%

Controllable Conversion of CO₂on Non‐Metallic Gold Clusters

et al. 2019

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Gold nanoparticles in metallic or plasmonic state have been widely used to catalyze homogeneous and heterogeneous reactions.H owever,t he catalytic behavior of gold catalysts in non-metallic or excitonic state remain elusive. Atomically precise Au n clusters (n = number of gold atoms) bridge the gap between non-metallic and metallic catalysts and offer new opportunities for unveiling the hidden properties of gold catalysts in the metallic,t ransition regime,a nd nonmetallic states.H ere,w er eport the controllable conversion of CO 2 over three non-metallic Au n clusters,including Au 9 ,Au 11 , and Au 36 ,towards different target products:methane produced on Au 9 ,e thanol on Au 11 ,a nd formic acid on Au 36 .S tructural information encoded in the non-metallic clusters permits aprecise correlation of atomic structure with catalytic properties and hence,p rovides molecular-level insight into distinct reaction channels of CO 2 hydrogenation over the three nonmetallic Au catalysts.

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“…[1a,b] Theu se of CO 2 as the feedstock is particularly attractive as its significant advantages include easy availability and renewability as well as the elimination of the greenhouse gas CO 2 by its conversion into valuable chemicals. [2][3][4] However,t he transformation of CO 2 into ethanol is difficult to achieve owing to the chemical inertness of CO 2 . Effective cleavage of the C=Ob ond and the selective formation of desired chemicals are still challenging.Va rious effective catalysts have been developed for the hydrogenation of CO 2 ; [2][3][4] these are typically based on ceriatitania decorated with Au [3a] or Cu, [3b] industrial Cu/ZnO/ Al 2 O 3 , [2b,c] Ni-Ga, [3d] Zn-Zr, [4a] Mn-Co, [4b] or Fe-Co. [4c] How-ever,t hese catalysts provide methanol as the major product.…”

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confidence: 99%

“…[2][3][4] However,t he transformation of CO 2 into ethanol is difficult to achieve owing to the chemical inertness of CO 2 . Effective cleavage of the C=Ob ond and the selective formation of desired chemicals are still challenging.Va rious effective catalysts have been developed for the hydrogenation of CO 2 ; [2][3][4] these are typically based on ceriatitania decorated with Au [3a] or Cu, [3b] industrial Cu/ZnO/ Al 2 O 3 , [2b,c] Ni-Ga, [3d] Zn-Zr, [4a] Mn-Co, [4b] or Fe-Co. [4c] How-ever,t hese catalysts provide methanol as the major product. In the past few years,homogeneous catalysts with air-sensitive organic ligands have emerged as selective catalysts for the production of C 2+ products from CO 2 hydrogenation, [5] but these homogeneous catalysts are difficult to be regenerated or even to be separated from the reaction system.…”

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confidence: 99%

Selective Hydrogenation of CO₂ to Ethanol over Cobalt Catalysts

et al. 2018

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Methods for the hydrogenation of CO into valuable chemicals are in great demand but their development is still challenging. Herein, we report the selective hydrogenation of CO into ethanol over non-noble cobalt catalysts (CoAlO ), presenting a significant advance for the conversion of CO into ethanol as the major product. By adjusting the composition of the catalysts through the use of different prereduction temperatures, the efficiency of CO to ethanol hydrogenation was optimized; the catalyst reduced at 600 ° gave an ethanol selectivity of 92.1 % at 140 °C with an ethanol time yield of 0.444 mmol g h . Operando FT-IR spectroscopy revealed that the high ethanol selectivity over the CoAlO catalyst might be due to the formation of acetate from formate by insertion of *CH , a key intermediate in the production of ethanol by CO hydrogenation.

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A highly selective and stable ZnO-ZrO₂solid solution catalyst for CO₂hydrogenation to methanol

Abstract: Reduction of CO2 to methanol using renewable hydrogen is a promising but challenging strategy for carbon capture and utilization.

Cited by 838 publications

References 53 publications

Single-pass transformation of syngas into ethanol with high selectivity by triple tandem catalysis

Single-pass transformation of syngas into ethanol with high selectivity by triple tandem catalysis

Controllable Conversion of CO₂on Non‐Metallic Gold Clusters

Selective Hydrogenation of CO₂ to Ethanol over Cobalt Catalysts

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A highly selective and stable ZnO-ZrO2solid solution catalyst for CO2hydrogenation to methanol

Abstract: Reduction of CO2 to methanol using renewable hydrogen is a promising but challenging strategy for carbon capture and utilization.

Cited by 838 publications

References 53 publications

Single-pass transformation of syngas into ethanol with high selectivity by triple tandem catalysis

Single-pass transformation of syngas into ethanol with high selectivity by triple tandem catalysis

Controllable Conversion of CO2on Non‐Metallic Gold Clusters

Selective Hydrogenation of CO2 to Ethanol over Cobalt Catalysts

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Product

Resources

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A highly selective and stable ZnO-ZrO₂solid solution catalyst for CO₂hydrogenation to methanol

Controllable Conversion of CO₂on Non‐Metallic Gold Clusters

Selective Hydrogenation of CO₂ to Ethanol over Cobalt Catalysts