Direct synthesis of allyl alcohol from glycerol over CoFe alloy

Zhao, Huaiyuan; Jiang, Yuanyuan; Liu, Haolan; Long, Yihua; Wang, Zhengbao; Hou, Zhaoyin

doi:10.1016/j.apcatb.2020.119187

Cited by 24 publications

(16 citation statements)

References 52 publications

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“…Heterogeneous hydrogenolysis on glycerol catalyzed by CoFe alloy supported on ZIF with H 2 as reducing agent reached 62 % yield of olefin 3. [100] and 1,2-propanediol (33) also increased accordingly. A low H 2 pressure up to 20 bar was also beneficial to allyl alcohol 3, whereas higher pressure promoted its further hydrogenation.…”

Section: Zif (2-methylimidazole)mentioning

confidence: 93%

“…In 2020, Hou and co-workers reported a continuous process relying on H 2 as reducing agent, catalyzed with a CoFe alloy supported on 2-methylimidazole (CoFe-ZIF; Scheme 21). [100] The bimetallic catalyst showed a synergistic effect between Fe (enhancing surface acidity) and Co (offering a higher ability for H 2 activation and adsorption), hence promoting the dehydration of GL and its consecutive hydrogenation to yield allyl alcohol 3. Increasing the process temperature up to 250 °C favored the selectivity toward 3 at the expense of acetol 22.…”

Section: Zif (2-methylimidazole)mentioning

confidence: 99%

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Perspectives for the Upgrading of Bio‐Based Vicinal Diols within the Developing European Bioeconomy

Muzyka

Monbaliu

2022

ChemSusChem

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The previous decade has witnessed a drastic increase of European incentives aimed at pushing forward the transition from an exclusively petro‐based economy toward a strong and homogeneous bio‐based economy. Since 2012, numerous programs have been developed to stimulate and promote research and innovation relying on sustainable and renewable resources. Terrestrial biomass is a virtually infinite reservoir of biomacromolecules, the biorefining of which provides platform molecules of low complexity yet with tremendous industrial potential. Among such bio‐based platform molecules, polyols and, more specifically, molecules featuring vicinal diols have gained tremendous interest and have stimulated an increasing research effort from the chemistry and chemical engineering communities. This Review revolves around the most promising process conditions and technologies reported since 2012 that specifically target bio‐based vicinal diols and promote their transformation into value‐added molecules of wide industrial interest, such as olefins, epoxides, cyclic carbonates, and ketals.

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Section: Zif (2-methylimidazole)mentioning

confidence: 93%

Section: Zif (2-methylimidazole)mentioning

confidence: 99%

Perspectives for the Upgrading of Bio‐Based Vicinal Diols within the Developing European Bioeconomy

Muzyka

Monbaliu

2022

ChemSusChem

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“…It has been reported that Co 0 sites were catalytically active for the hydrogenolysis of glycerol and sorbitol. However, the Co-based catalysts need to be further optimized for enhancing its catalytic activity, selectivity, and, in particular, hydrothermal stability. − In order to improve the performance of Co-based catalysts, in this work, we incorporated Ca(II) into the framework of Co-Al hydrotalcite-like (HT) to construct Co-Ca-Al catalysts via optimizing the proportion of the components. Fortunately, the optimized Co 2 -Ca 4 -Al 3 catalyst afforded excellent activity and selectivity to 1,2-PDO in glycerol hydrogenolysis under aqueous phase and base-free conditions.…”

Section: Introductionmentioning

confidence: 99%

Boosting the Long-Term Stability of Hydrotalcite-Derived Catalysts in Hydrogenolysis of Glycerol by Incorporation of Ca(II)

Gong

Zhao

et al. 2021

ACS Sustainable Chem. Eng.

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Selective hydrogenolysis of biomass-derived glycerol into 1,2-propanediol (1,2-PDO) is of practical importance to upgrade the huge amounts of surplus glycerol derived from renewable biomass. Herewith, we report that hydrotalcite-derived catalysts have been employed for selective hydrogenolysis of glycerol into 1,2-PDO under aqueous phase and base-free conditions. In particular, the catalyst of Co 2 -Ca 4 -Al 3 was recorded as a good catalyst with an optimum glycerol conversion of 100% and 1,2-PDO selectivity of 90.5% in glycerol hydrogenolysis. Meanwhile, it exhibited high stability in consecutive catalytic recycles under batch-wise operation conditions. Furthermore, the catalyst also demonstrated high glycerol conversion (ca. 95.0%) and selectivity to 1,2-PDO (ca. 90.0%) with a long-term catalytic stability (280 h) by a continuous-flow fixed-bed reactor. Additionally, the catalyst can be further extended to selective hydrogenolysis of some other sugar polyols to 1,2-PDO (selectivity up to 50.5%−68.5%). The activity tests and characterizations demonstrated that Co 0 existing in the catalysts acted as active sites in glycerol hydrogenolysis. Also, the further characterization by XRD, HRTEM, and EDS element maps revealed that the distribution of Co was basically consistent with that of Al, while Ca species were adjacent to Co and Al species. The mixed metal oxides CaO-CoAl 2 O 4 were generated arising from a strong interaction between Co(II) and Ca(II) oxides species, which endowed more electron-deficient Co(II) sites and also led to large amounts of moderate basic sites, being favorable for enhancing catalytic activity and selectivity. Notably, the forming CaCO 3 phase played a crucial role in preventing the leaching of moderate basic sites and metal species by covering CaO-CoAl 2 O 4 mixed metal oxides, which was the crucial reason that the present Co 2 -Ca 4 -Al 3 catalyst showed the remarkable catalytic stability under aqueous phase reaction conditions. On the basis of the results above, the reaction pathway has been discussed as well.

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“…In recent years, catalysts derived from pyrolysis of metal–organic frameworks (MOFs) have shown excellent catalytic activity. , The MOF-derived catalysts have attracted considerable attention because of their excellent activity in catalytic hydrogenation. , Herein, we report the development of a copper-based bimetallic catalyst derived from MOFs for the selective hydrogenation of 5-HMF to DMF under mild conditions. High-resolution transmission electron microscopy, energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) were utilized to study the physical and surface properties of the catalyst.…”

Section: Introductionmentioning

confidence: 99%

“…19 In recent years, catalysts derived from pyrolysis of metal− organic frameworks (MOFs) have shown excellent catalytic activity. 22,23 The MOF-derived catalysts have attracted considerable attention because of their excellent activity in catalytic hydrogenation. 24,25 Herein, we report the development of a copper-based bimetallic catalyst derived from MOFs for the selective hydrogenation of 5-HMF to DMF under mild conditions.…”

Section: ■ Introductionmentioning

confidence: 99%

Non Noble-Metal Copper–Cobalt Bimetallic Catalyst for Efficient Catalysis of the Hydrogenolysis of 5-Hydroxymethylfurfural to 2,5-Dimethylfuran under Mild Conditions

et al. 2021

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The efficient catalysis of the hydrogenation of 5-hydroxymethylfurfural (HMF) to 2,5-dimethylfuran (DMF) over non noble-metal catalysts has received great attention in recent years. However, the reaction usually requires harsh conditions, such as high reaction temperature and excessively long reaction time, which limits the application of the non noble-metal catalysts. In this work, a bimetallic Co x -Cu@C catalyst was prepared via the pyrolysis of MOFs, and an 85% DMF yield was achieved under a reaction temperature and time of 160 °C and 3 h, respectively. The results of X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), energy-dispersive X-ray spectroscopy (EDX) mapping, and other characterization techniques showed that the synthesis method in this paper realized the in situ loading of cobalt into the copper catalyst. The reaction mechanism studies revealed that the cobalt doping effectively enhanced the hydrogenation activity of the copper-based catalyst on the C–O bond at a low temperature. Moreover, the bimetallic Co x -Cu@C catalyst exhibited superior reusability without any loss in the activity when subjected to five testing rounds.

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Direct synthesis of allyl alcohol from glycerol over CoFe alloy

Cited by 24 publications

References 52 publications

Perspectives for the Upgrading of Bio‐Based Vicinal Diols within the Developing European Bioeconomy

Perspectives for the Upgrading of Bio‐Based Vicinal Diols within the Developing European Bioeconomy

Boosting the Long-Term Stability of Hydrotalcite-Derived Catalysts in Hydrogenolysis of Glycerol by Incorporation of Ca(II)

Non Noble-Metal Copper–Cobalt Bimetallic Catalyst for Efficient Catalysis of the Hydrogenolysis of 5-Hydroxymethylfurfural to 2,5-Dimethylfuran under Mild Conditions

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