Selective hydrodeoxygenation of <i>p</i>-cresol as a model for coal tar distillate on Ni–M/SiO<sub>2</sub> (M = Ce, Co, Sn, Fe) bimetallic catalysts

Pan, Liuyi; He, Yezeng; Niu, Menglong; Dan, Yong; Li, Wenhong

doi:10.1039/c9ra02791b

Cited by 21 publications

(9 citation statements)

References 60 publications

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“…The surface acidity of the catalysts was measured by NH 3 ‐TPD, as shown in Figure 2(c). Typically, the peak at about 150 °C was related to weak acidic sites and the peaks at about 450 °C were related to medium‐strength acidic sites [31] . In our case, it could be seen that the pure USY support only displayed one peak at 150 °C, indicating its intrinsic weak surface acidity.…”

Section: Resultsmentioning

confidence: 51%

“…Typically, the peak at about 150 °C was related to weak acidic sites and the peaks at about 450 °C were related to mediumstrength acidic sites. [31] In our case, it could be seen that the pure USY support only displayed one peak at 150 °C, indicating its intrinsic weak surface acidity. The same peak could also be observed in Co/USY and CoÀ Al 2 O 3 @USY, further claiming the retainment of the USY structure.…”

Section: Chemcatchemmentioning

confidence: 52%

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Fabricating Bifunctional Co−Al₂O₃@USY Catalyst via In‐Situ Growth Method for Mild Hydrodeoxygenation of Lignin to Naphthenes

Cheng

Jia

et al. 2022

ChemCatChem

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To enhance the catalytic activity and stability of metal catalysts in the hydrodeoxygenation of lignin derivatives into naphthenes, a bifunctional Co−Al2O3@USY catalyst was fabricated by the reduction of CoAl layered double hydroxide in‐situ grown on the USY zeolite. In the hydrodeoxygenation of guaiacol, a 100.0 % conversion with cyclohexane yield up to 93.6 % was achieved at 180 °C, 3 MPa for 4 h, which should be the hitherto lowest reaction temperature that has been reported over Co‐based metal catalysts. This catalyst was also relatively stable with 5 runs and exhibited excellent catalytic performance in the hydrodeoxygenation of other lignin model compounds and even real lignin feedstock into naphthenes. The high‐efficiency of Co−Al2O3@USY was attributed to the synergistic effect between well‐dispersed small Co nanoparticles and abundant acidic sites on the USY surface, while the outstanding stability was attributed to the anchoring effect of Al2O3 matrix to Co nanoparticles which avoided the leaching of Co species and particle agglomeration. This work provides a potential strategy for the design of an efficient and stable catalyst for lignin utilization.

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Section: Resultsmentioning

confidence: 51%

Section: Chemcatchemmentioning

confidence: 52%

Fabricating Bifunctional Co−Al₂O₃@USY Catalyst via In‐Situ Growth Method for Mild Hydrodeoxygenation of Lignin to Naphthenes

Cheng

Jia

et al. 2022

ChemCatChem

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“…However, a positive shift in the desorption temperature was observed, suggesting that the interaction of NiO and SnO 2 took place, and an interface was formed in the NiO(10%)/SnO 2 . 43, 44 The type of acid site present in the NiO(10%)/SnO 2 was also confirmed using pyridine-IR analysis. Figure S5 shows the bare and pyridine-adsorbed IR spectra of the NiO(10%)/SnO 2 .…”

Section: ■ Experimental Sectionmentioning

confidence: 81%

Unraveling the Synergistic Participation of Ni–Sn in Nanostructured NiO/SnO₂ for the Catalytic Transfer Hydrogenolysis of Benzyl Phenyl Ether

et al. 2022

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Selective transfer hydrogenolysis of lignin-derived aromatic ethers by the utilization of hydrogen donor solvent without hydrogenation of aromatic rings is a crucial strategy for the selective production of mono-aromatics. The use of non-noble metal-based catalysts toward transfer hydrogenolysis of an aromatic ether bond with high activity and selectivity is still to be achieved. Herein, we report the synthesis of a non-noble metal-based nanostructured NiO(x%)/SnO2 catalyst for the catalytic transfer hydrogenolysis of benzyl phenyl ether and its homologues ether. The developed catalyst afforded >95% reactant conversion and 100% selectivity toward the aromatic compounds using 2-propanol as a hydrogen source at 250 °C and 4 h in the N2 atmosphere. The catalyst was thoroughly characterized by several physicochemical analytical techniques. The oxygen vacancy was analyzed by Raman and FT-IR spectroscopies & XPS analysis, and acidity was analyzed by the temperature-programmed desorption and pyridine-adsorbed FT-IR spectroscopy. The synergistic participation of NiO and SnO2 nanoparticles in NiO/SnO2, reducing ability, and interface formation were confirmed using temperature-programmed reduction, several physicochemical characterization techniques, and control reactions. Based on the catalytic activity data, it is concluded that the appropriate NiO loading (10 wt %) was the dominant factor for controlling the aromatic selectivity. The catalyst was efficiently recycled after a simple calcination process with no substantial loss in the catalytic activity. An in-depth study on the change in the catalyst chemical composition and their regeneration using various characterization techniques was conducted. A simple, cost-effective non-noble catalyst and straightforward eco-friendly transfer-hydrogenolysis catalytic process involving 2-propanol to produce aromatic platform chemicals would attract significant attention from catalysis researchers and industrialists.

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“…Although traditional sulfided catalysts such as sulfurized NiMo/γ-Al 2 O 3 and CoMo/γ-Al 2 O 3 exhibit high activity and high selectivity for phenol HDO, they tend to deactivate because of the loss of sulfur and coking. , Supported noble metal catalysts have attracted great attention in HDO landscape owing to their excellent catalytic HDO performance. − Recently, transition metal phosphides, metal nitrides, and metal carbides emerged as promising HDO catalysts, ,,− though there are still challenges for their commercial applications. It is also worthy to note that nickel metal catalysts have been widely investigated in HDO. ,− Mortensen et al considered the Ni metal to be a better HDO catalyst than Co and Fe, and its HDO performance is greatly influenced by the property of supports …”

Section: Introductionmentioning

confidence: 99%

Hydrodeoxygenation of Guaiacol Catalyzed by ZrO₂–CeO₂-Supported Nickel Catalysts with High Loading

Jiang

Sun

et al. 2020

Energy Fuels

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Ni/ZrO 2 −CeO 2 catalysts with high loading of nickel have been prepared by the coprecipitation method and employed to investigate the catalytic hydrodeoxygenation (HDO) performance of guaiacol. The materials obtained were characterized using N 2 adsorption−desorption, X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, H 2 -TPR, CO chemisorption, and NH 3 -TPD. For Ni/ZrO 2 −CeO 2 catalysts, the formation of the ZrO 2 −CeO 2 solid solutions enhances the dispersion of the metal Ni. The oxygen vacancies resulting from Ce 3+ species in Ni/ZrO 2 −CeO 2 promote the adsorption and activation of the oxygen-containing group in guaiacol molecules and thereby improve the ability of the catalyst to break the C−O bond. The addition of ZrO 2 increases the number of acidic sites of the catalysts. These factors synergistically enhance the HDO performance of the catalysts.

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Selective hydrodeoxygenation of p-cresol as a model for coal tar distillate on Ni–M/SiO₂ (M = Ce, Co, Sn, Fe) bimetallic catalysts

Abstract: Ni–M/SiO2 with different binary metals M (M = Ce, Co, Sn, Fe) prepared by an incipient impregnation method was used in the hydrodeoxygenation (HDO) of p-cresol as model of phenols in coal tar to produce BTX.

Cited by 21 publications

References 60 publications

Fabricating Bifunctional Co−Al₂O₃@USY Catalyst via In‐Situ Growth Method for Mild Hydrodeoxygenation of Lignin to Naphthenes

Fabricating Bifunctional Co−Al₂O₃@USY Catalyst via In‐Situ Growth Method for Mild Hydrodeoxygenation of Lignin to Naphthenes

Unraveling the Synergistic Participation of Ni–Sn in Nanostructured NiO/SnO₂ for the Catalytic Transfer Hydrogenolysis of Benzyl Phenyl Ether

Hydrodeoxygenation of Guaiacol Catalyzed by ZrO₂–CeO₂-Supported Nickel Catalysts with High Loading

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Selective hydrodeoxygenation of p-cresol as a model for coal tar distillate on Ni–M/SiO2 (M = Ce, Co, Sn, Fe) bimetallic catalysts

Abstract: Ni–M/SiO2 with different binary metals M (M = Ce, Co, Sn, Fe) prepared by an incipient impregnation method was used in the hydrodeoxygenation (HDO) of p-cresol as model of phenols in coal tar to produce BTX.

Cited by 21 publications

References 60 publications

Fabricating Bifunctional Co−Al2O3@USY Catalyst via In‐Situ Growth Method for Mild Hydrodeoxygenation of Lignin to Naphthenes

Fabricating Bifunctional Co−Al2O3@USY Catalyst via In‐Situ Growth Method for Mild Hydrodeoxygenation of Lignin to Naphthenes

Unraveling the Synergistic Participation of Ni–Sn in Nanostructured NiO/SnO2 for the Catalytic Transfer Hydrogenolysis of Benzyl Phenyl Ether

Hydrodeoxygenation of Guaiacol Catalyzed by ZrO2–CeO2-Supported Nickel Catalysts with High Loading

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Selective hydrodeoxygenation of p-cresol as a model for coal tar distillate on Ni–M/SiO₂ (M = Ce, Co, Sn, Fe) bimetallic catalysts

Fabricating Bifunctional Co−Al₂O₃@USY Catalyst via In‐Situ Growth Method for Mild Hydrodeoxygenation of Lignin to Naphthenes

Fabricating Bifunctional Co−Al₂O₃@USY Catalyst via In‐Situ Growth Method for Mild Hydrodeoxygenation of Lignin to Naphthenes

Unraveling the Synergistic Participation of Ni–Sn in Nanostructured NiO/SnO₂ for the Catalytic Transfer Hydrogenolysis of Benzyl Phenyl Ether

Hydrodeoxygenation of Guaiacol Catalyzed by ZrO₂–CeO₂-Supported Nickel Catalysts with High Loading