Promotion effects of PrPO<sub>4</sub> for the hydrogenation transformation of biomass-derived compounds over Pr–Ni–P composites

Zhang, Yafang; Zhao, Dezhi; Zhang, Dihui; Xu, Meng-xing; He, Xianghua; Chen, Chao

doi:10.1039/d1ma00197c

Cited by 7 publications

(2 citation statements)

References 63 publications

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“…Under different reduction conditions, several different oxidation states were observed in the Ni2p spectra. In NZT‐550, peaks corresponding to Ni δ+ , Ni 2+ and the corresponding satellite were observed at 853.2, [25] 855.5 [26] and 861 eV respectively. These ionic species were reduced to metallic species at higher reduction temperatures.…”

Section: Resultsmentioning

confidence: 99%

Mechanistic Insights into Near Ambient Pressure Activity of Intermetallic NiZn/TiO₂ Catalyst for CO₂ Conversion to Methanol

et al. 2023

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NiÀ Zn pair is predicted through descriptor-based studies to be conducive for CO 2 hydrogenation. In this study, NiZn (1 : 1) intermetallics supported on TiO 2 is identified as a potential candidate for near ambient pressure activity. The effect of reduction temperature on the catalyst textural properties as well as on CO 2 to methanol reduction are explored. Structural and microscopic studies provide clear evidence of phase evolution of NiZn alloy with increasing reduction temperatures, along with phase variations of Zn based oxides. Interface between NiZn intermetallics and ZnO nanoparticles observed at reduction temperature of 550 °C, seems to play a crucial role in making this system most active and selective to methanol. In addition, in-situ IR studies provide mechanistic insights and indicates the formation of methanolic species even at ambient pressure.

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Section: Resultsmentioning

confidence: 99%

Mechanistic Insights into Near Ambient Pressure Activity of Intermetallic NiZn/TiO₂ Catalyst for CO₂ Conversion to Methanol

et al. 2023

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“…It is clear that the electron-rich Ru 1 Co@N-C-1.1 catalyst is more active than electron-deficient 5 wt % Ru/C, Ru-NOMC, Ru/ZrO 2 and Ru 40 @Meso-SiO 2 (Table S5, entries 2–5), and Ru NPs (Table S5, entries 6–11); − ,,− meanwhile, the electron-rich RuCo SAAS catalysts prepared in this study deliver a much larger productivity of GVL than the reported non-noble metal catalysts (Table S6). − It is demonstrated that electron-deficient Ru single atoms are less efficient for the LA-to-GVL process because of the higher energy barrier for H 2 dissociation. The electron-rich Ru sites should be responsible for the excellent activity of Ru 1 Co@N-C-1.1.…”

Section: Resultsmentioning

confidence: 99%

Electron-Rich Ruthenium Single-Atom Alloy for Aqueous Levulinic Acid Hydrogenation

et al. 2021

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Modulation of the electronic structure of metal-based catalysts proves to be useful for optimizing the catalytic activity. However, precise modulation of the electronic structure at the atomic scale remains challenging, because of the invariant electronic structure of single atoms and the difficulty in achieving the size limit for tailored alloy particles. Herein, we report a RuCo single-atom alloy (SAA) catalyst with precisely tailored electron-rich Ru atoms confined into the Co lattice, skillfully fabricated by pyrolysis of Ru-containing ZIF-67 with a tuned Ru feed content. The structure of RuCo SAAs is well investigated by various characterization techniques, including aberration-corrected scanning transmission electron microscopy, high-energy X-ray diffraction, X-ray photoelectron spectroscopy, and X-ray absorption fine structure. It is found that the RuCo SAAs with more electron-rich Ru atoms are more active toward aqueous levulinic acid (LA) hydrogenation to γ-valerolactone, delivering an extremely large turnover frequency value of 3500 h–1, 27 fold higher than that over the state-of-art 5 wt % Ru/C catalyst and much higher than those over electron-deficient Ru single atoms and Ru-containing alloyed particles. Combined experimental investigation and computational modeling reveal that the remarkable activity originates from the intrinsic RuCo SAA active site in which the electron-rich Ru single-atom boosts CO/H2 adsorption and H2 dissociation to H atoms and especially facilitates the γ-C of LA hydrogenation, which is the rate-determining step for LA hydrogenation. This study will shed light on the precise tailoring of the electronic structure at the atomic scale and also provides insight into the development of SAA catalysts for biomass conversion.

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NiyCo2-yP alloy catalysts with assistance of Y for boosting Low-pressure hydrogenation transformation of Biomass-derived levulinic acid or furfural in water

Xu²,

Liu³

et al. 2022

Applied Surface Science

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Promotion effects of PrPO₄ for the hydrogenation transformation of biomass-derived compounds over Pr–Ni–P composites

Abstract: To span the inherent application limitation of metallic catalysts for Chemical transformation of biomass derivatives, here, we formulate a series of Pr-Ni-P catalysts for hydrogenation transformation of biomass-derived levulinic-acid, furfural...

Cited by 7 publications

References 63 publications

Mechanistic Insights into Near Ambient Pressure Activity of Intermetallic NiZn/TiO₂ Catalyst for CO₂ Conversion to Methanol

Mechanistic Insights into Near Ambient Pressure Activity of Intermetallic NiZn/TiO₂ Catalyst for CO₂ Conversion to Methanol

Electron-Rich Ruthenium Single-Atom Alloy for Aqueous Levulinic Acid Hydrogenation

NiyCo2-yP alloy catalysts with assistance of Y for boosting Low-pressure hydrogenation transformation of Biomass-derived levulinic acid or furfural in water

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Promotion effects of PrPO4 for the hydrogenation transformation of biomass-derived compounds over Pr–Ni–P composites

Abstract: To span the inherent application limitation of metallic catalysts for Chemical transformation of biomass derivatives, here, we formulate a series of Pr-Ni-P catalysts for hydrogenation transformation of biomass-derived levulinic-acid, furfural...

Cited by 7 publications

References 63 publications

Mechanistic Insights into Near Ambient Pressure Activity of Intermetallic NiZn/TiO2 Catalyst for CO2 Conversion to Methanol

Mechanistic Insights into Near Ambient Pressure Activity of Intermetallic NiZn/TiO2 Catalyst for CO2 Conversion to Methanol

Electron-Rich Ruthenium Single-Atom Alloy for Aqueous Levulinic Acid Hydrogenation

NiyCo2-yP alloy catalysts with assistance of Y for boosting Low-pressure hydrogenation transformation of Biomass-derived levulinic acid or furfural in water

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Product

Resources

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Promotion effects of PrPO₄ for the hydrogenation transformation of biomass-derived compounds over Pr–Ni–P composites

Mechanistic Insights into Near Ambient Pressure Activity of Intermetallic NiZn/TiO₂ Catalyst for CO₂ Conversion to Methanol

Mechanistic Insights into Near Ambient Pressure Activity of Intermetallic NiZn/TiO₂ Catalyst for CO₂ Conversion to Methanol