Synergistic effect between copper and different metal oxides in the selective hydrogenolysis of glucose

Li, Chengwei; Zhang, Zhaonan; Zhai, Xuefeng; Wang, Xianzhou; Gui, Jianzhou; Zhang, Chenghua; Zhu, Yulei; Li, Yongwang

doi:10.1039/c8nj05815f

Cited by 16 publications

(13 citation statements)

References 66 publications

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“…For instance, Choudhary reported that the proper B/L ratio favors xylulose dehydration to furfural at low reaction temperatures; [ 27‐28 ] Liu et al . reported that the presence of Lewis acid sites and hydrogenation sites on a Cu/γ‐Al 2 O 3 catalyst had high glycol selectivity (66.6%) for glucose conversion at high reaction temperatures, [ 76 ] and the results were also in agreement with those reports. [ 77‐79 ]…”

Section: Resultssupporting

confidence: 88%

Efficient Synthesis of Sugar Alcohols over a Synergistic and Sustainable Catalyst

et al. 2021

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Main observation and conclusion A series of catalysts were prepared for sugar alcohols production to overcome the deficiencies of the previous reported catalysts, such as low yield of sugar alcohols, single function, instability, and controversial role of active sites. The role of each metal and their synergistic‐cooperation was discussed in detail with a combination of conditional experiments and characterizations. The results indicated that bifunctional Ni6.66Fe1Al1.55 catalyst has unique structure with superparamagnetism and excellent activity. The (111) and (200) planes of metallic Ni are the hydrogenation active phases and preferentially exposed on Ni‐Al‐Ox spinel. The desired arabitol or mannitol was obtained by tuning the ratio of Brønsted and Lewis acid sites. The recycling tests indicated that the unique structure of the prepared Ni‐based catalyst can suppress leaching and poisoning, which has high textural stability and activity.

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Section: Resultssupporting

confidence: 88%

Efficient Synthesis of Sugar Alcohols over a Synergistic and Sustainable Catalyst

et al. 2021

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“…However, the yields of the identified products did not increase appreciably. The obtained data evidenced high conversion and carbon loss at temperatures above 200 °C due to changes in the reaction pathways; at high temperatures, glucose was converted into both insoluble humins and soluble polymeric byproducts [51]. This could be attributed to the oligomerization reaction of both glucoses, HMF and other reaction products (fructose, other C4-C5 sugars).…”

Section: Catalytic Testmentioning

confidence: 91%

MCM-41 Supported Co-Based Bimetallic Catalysts for Aqueous Phase Transformation of Glucose to Biochemicals

et al. 2020

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The transformation of glucose into valuable biochemicals was carried out on different MCM-41-supported metallic and bimetallic (Co, Co-Fe, Co-Mn, Co-Mo) catalysts and under different reaction conditions (150 °C, 3 h; 200 °C, 0.5 h; 250 °C, 0.5 h). All catalysts were characterized using N2 physisorption, Temperature Programmed Reduction (TPR), Raman, X-ray Diffraction (XRD) and Temperature Programmed Desorption (TPD) techniques. According to the N2-physisorption results, a high surface area and mesoporous structure of the support were appropriate for metal dispersion, reactant diffusion and the formation of bioproducts. Reaction conditions, bimetals synergetic effects and the amount and strength of catalyst acid sites were the key factors affecting the catalytic activity and biochemical selectivity. Sever reaction conditions including high temperature and high catalyst acidity led to the formation mainly of solid humins. The NH3-TPD results demonstrated the alteration of acidity in different bimetallic catalysts. The 10Fe10CoSiO2 catalyst (MCM-41 supported 10 wt.%Fe, 10 wt.%Co) possessing weak acid sites displayed the best catalytic activity with the highest carbon balance and desired product selectivity in mild reaction condition. Valuable biochemicals such as fructose, levulinic acid, ethanol and hydroxyacetone were formed over this catalyst.

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“… 21 A Cu/γ-Al 2 O 3 catalyst can promote C–C and C–O bonds cleavage, leading to the conversion of glucose to glycols (with a selectivity of 67%). 22 Ordered mesoporous 10.9% Ni/6.3% CeO 2 –Al 2 O 3 showed better catalytic performance in the hydrogenolysis of sorbitol, obtaining a 56.9% yield of ethylene glycol (EG) and 1,2-PG. 23 A Cu–Ni/ZrO 2 catalyst was efficient for xylitol conversion to EG and 1,2-PG with a 65% total selectivity in water without a base additive.…”

Section: Introductionmentioning

confidence: 99%

Hydrogenolysis of biomass-derived sorbitol over La-promoted Ni/ZrO₂ catalysts

et al. 2020

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Synergistic effect between copper and different metal oxides in the selective hydrogenolysis of glucose

Abstract: The coordination of copper and different acid/basic sites could promote the selective hydrogenolysis of glucose to polyols.

Cited by 16 publications

References 66 publications

Efficient Synthesis of Sugar Alcohols over a Synergistic and Sustainable Catalyst

Efficient Synthesis of Sugar Alcohols over a Synergistic and Sustainable Catalyst

MCM-41 Supported Co-Based Bimetallic Catalysts for Aqueous Phase Transformation of Glucose to Biochemicals

Hydrogenolysis of biomass-derived sorbitol over La-promoted Ni/ZrO₂ catalysts

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Synergistic effect between copper and different metal oxides in the selective hydrogenolysis of glucose

Abstract: The coordination of copper and different acid/basic sites could promote the selective hydrogenolysis of glucose to polyols.

Cited by 16 publications

References 66 publications

Efficient Synthesis of Sugar Alcohols over a Synergistic and Sustainable Catalyst

Efficient Synthesis of Sugar Alcohols over a Synergistic and Sustainable Catalyst

MCM-41 Supported Co-Based Bimetallic Catalysts for Aqueous Phase Transformation of Glucose to Biochemicals

Hydrogenolysis of biomass-derived sorbitol over La-promoted Ni/ZrO2 catalysts

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Hydrogenolysis of biomass-derived sorbitol over La-promoted Ni/ZrO₂ catalysts