Alkali-Boosted Catalytic Activity of Co-Based Catalysts Supported by Nanoporous Carbon in the Hydrodeoxygenation of Guaiacol DOI Open Access
Juan Matos,

Diana Samudio-González,

Élodie Blanco

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 15(1), P. 17 - 17

Published: Dec. 28, 2024

The catalytic activity and selectivity of Co-based catalysts supported on home-made nanoporous carbon was studied as a function the type alkali promoter (Ca Mg). were characterized by N2 adsorption/desorption isotherms, temperature-programmed reduction, CO chemisorption, X-ray diffraction patterns. compared against carbon-supported alkali-promoted Ni-based Re-containing catalysts. catalyst clearly enhanced in presence Ca Mg, it higher than comparable to that obtained using an ReC catalyst. initial Mg-promoted increased factor up 2.5 times non-promoted Moreover, this showed turnover frequency 5 equivalent Re-based Significant changes not observed products after incorporation alkali, with cyclohexane being main product. However, demonstrated led faster production from demethoxylation phenol dehydrogenation cyclohexanol. present results suggest are economical alternative for conversion representative target molecules bio-oil feed.

Language: Английский

Efficient In-Situ Transfer Hydrogenation Of Palmitic Acid Into Alkanes Over Ni/Ce X Zr 1-X O 2 Solid Solution Catalysts In Aqueous Medium with Methanol as the Hydrogen Donor DOI

Yuhao Yan,

Daxin Jiang,

Rui Li

et al.

Published: Jan. 1, 2025

Compared to adding high-purity H2, converting microalgae-oil into high-quality fuel through in-situ transfer hydrogenation is more economical and safer. Developing high-efficient low-price catalysts the key practical application of this technology. Multiple Ni/CexZr1-xO2 were prepared using co-precipitation method evaluated for palmitic acid with methanol as hydrogen donor. The results indicated that, compared Ni/CeO2 Ni/ZrO2, catalytic activity all has been significantly improved by formation CexZr1-xO2 solid solutions. Wherein, Ni/Ce0.8Zr0.2O2 possessed best effect, surpassing commercial Pt/C. And under optimized conditions (330 °C, 4 h, 9.6 mmol methanol), (15 wt.% Ni-loading) achieved highest conversion 93.56 % alkane yield 90.43 %. excellent performance was attributed larger BET surface area total pore volume, smaller particle size, stronger H-adsorption capacity, defects, higher oxygen vacancy concentrations. stability testing showed that after four cycles, main products over changed from alkanes methyl palmitate. Meanwhile, characterization decomposition Ce0.8Zr0.2O2, increase in size Ni carbon-deposition, leaching possible factors leading deactivation hydrothermal conditions. This research will serve reference design bio-oil aqueous medium.

Language: Английский

Citations

0
Efficient in-situ transfer hydrogenation of palmitic acid into alkanes over Ni/CexZr1-xO2 solid solution catalysts in aqueous medium with methanol as the hydrogen donor DOI

Yuhao Yan,

Daxin Jiang,

Rui Li

et al.

Fuel, Journal Year: 2025, Volume and Issue: 394, P. 135141 - 135141

Published: March 23, 2025

Language: Английский

Citations

0
Cobalt-glycerolates derived Co@C-T catalysts for the catalytic transfer hydrodeoxygenation of lignin-derived vanillin DOI
Fei Ge, Peng Liu, Wenlin Xu

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137444 - 137444

Published: March 1, 2025

Language: Английский

Citations

0
Synthesis of 4-propyl phenol from bio-based eugenol via hydrogenation and demethoxylation using novel Ni–Co/Al-SBA-15 catalysts DOI
Harsha M Dhanwani, Ganapati D. Yadav

Journal of Chemical Sciences, Journal Year: 2025, Volume and Issue: 137(2)

Published: March 26, 2025

Language: Английский

Citations

0
Laser-enhanced high-magnification telecentric imaging system for multiphase flow monitoring in membrane fouling DOI

Haohan Xu,

Liang Hu,

Xin Feng

et al.

Chinese Journal of Chemical Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Citations

0
Comparison of In Situ Formed Metal (Mo, W) Phosphides and Oxides in the Hydroprocessing of Used PET Bottles DOI
Mariyam Mukhtarova, Maria A. Golubeva, A. L. Maximov

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Language: Английский

Citations

0
A d-Electron Deficient Ru Single-Atom Catalyst that Increases the Carbon Utilization of Lignin Derivatives for the Production of Green Cyclohexanol and Methanol DOI

Shun‐Lin Li,

Zhenzhen Li, Linlin Duan

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 8426 - 8441

Published: May 5, 2025

Language: Английский

Citations

0
Inhibition of Ni oxidation in the catalyst and enhancing catalytic activity in lignin upgrading: sacrificing Co to protect Ni DOI
Longyu Zhang,

Xiaofan Tang,

Min Li

et al.

Journal of the Energy Institute, Journal Year: 2024, Volume and Issue: unknown, P. 101932 - 101932

Published: Dec. 1, 2024

Language: Английский

Citations

1
Highly Efficient and Selective Hydrodeoxygenation of Guaiacol Using Ni‐Supported Honeycomb‐Structured Biochar and Phosphomolybdic Acid DOI Open Access
Tao Yin,

Yang Luo,

Ripsa Rani Nayak

et al.

Chemistry - An Asian Journal, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 10, 2024

The sustainable development of energy has always been a concern. Upgrading biomass catalysis into hydrocarbon liquid fuels is one the effective methods. In order to upgrade derivative guaiacol by Hydrodeoxygenation (HDO) catalysis, this article report three-dimensional honeycomb structure biochar loaded with Ni nanoparticles and phosphomolybdic acid demonstrating excellent catalytic performance in short period time. This due porous biochar, which allows metal be highly uniformly dispersed on support, enhances hydrogenation terms both rate efficiency. Furthermore, it was observed that added dissolved within temperature range 78-90 °C, functioning as homogeneous catalyst process. proves advantageous, becomes accessible at any location Ni/C catalyst. detailed characterization data revealed carbon support prepared study high specific surface area up 1375.61 m

Language: Английский

Citations

0
Alkali-Boosted Catalytic Activity of Co-Based Catalysts Supported by Nanoporous Carbon in the Hydrodeoxygenation of Guaiacol DOI Open Access
Juan Matos,

Diana Samudio-González,

Élodie Blanco

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 15(1), P. 17 - 17

Published: Dec. 28, 2024

The catalytic activity and selectivity of Co-based catalysts supported on home-made nanoporous carbon was studied as a function the type alkali promoter (Ca Mg). were characterized by N2 adsorption/desorption isotherms, temperature-programmed reduction, CO chemisorption, X-ray diffraction patterns. compared against carbon-supported alkali-promoted Ni-based Re-containing catalysts. catalyst clearly enhanced in presence Ca Mg, it higher than comparable to that obtained using an ReC catalyst. initial Mg-promoted increased factor up 2.5 times non-promoted Moreover, this showed turnover frequency 5 equivalent Re-based Significant changes not observed products after incorporation alkali, with cyclohexane being main product. However, demonstrated led faster production from demethoxylation phenol dehydrogenation cyclohexanol. present results suggest are economical alternative for conversion representative target molecules bio-oil feed.

Language: Английский

Citations

0