Chemistry - An Asian Journal, Journal Year: 2024, Volume and Issue: 19(17)
Published: June 6, 2024
Dry reforming of methane (DRM), the catalytic conversion CH
Language: Английский
Chemistry - An Asian Journal, Journal Year: 2024, Volume and Issue: 19(17)
Published: June 6, 2024
Dry reforming of methane (DRM), the catalytic conversion CH
Language: Английский
Arabian Journal of Chemistry, Journal Year: 2023, Volume and Issue: 17(2), P. 105564 - 105564
Published: Dec. 19, 2023
Carbon Capture and Utilization (CCU) technologies offer a promising avenue for transforming captured CO2 into valuable products, serving as renewable fuels or precursors high-value synthesis. This study explores the dry reforming of methane (DRM) viable pathway to convert CH4 syngas, achieving high equilibrium conversion through use suitable catalysts. Conventional nickel-based catalysts are susceptible carbon deposition, necessitating innovative approaches enhance their performance. A tubular microreactor was employed conduct process at 800 °C, utilizing Cs-promoted Ni supported on 90 % Al2O3 10 ZrO2-based support composition. Catalyst preparation involved impregnation technique, subsequent characterization N2-physisorption, XRD, H2-TPR, TGA, TPD, Raman spectroscopy. The DRM reaction systematically investigated using Ni/ ZrO2- catalysts, with specific focus catalytic effects Cs promotion. Observations revealed that incorporation onto matrix led substantial increase in hydrogen yield selectivity across all catalyst compositions, accompanied by significant reduction deposition surface. optimal loading, determined be 3 wt% over catalyst, exhibited conversions 87 %, respectively, an H2/CO approaching 1 (0.95). research underscores potential Cs-modified enhancing efficiency CCU applications, providing insights optimizing formulations improved performance transformation processes.
Language: Английский
Citations
10Process Safety and Environmental Protection, Journal Year: 2025, Volume and Issue: unknown, P. 107045 - 107045
Published: April 1, 2025
Language: Английский
Citations
0ACS Omega, Journal Year: 2025, Volume and Issue: unknown
Published: April 21, 2025
This study validates the effectiveness of a composite kinetic processing approach combining isoconversional method and master-plot to determine triplet (reaction model, apparent pre-exponential factor, activation energy) for nonisothermal combustion at various heating rates coked nickel catalyst employed in dry reforming methane. First, average energy (164.5 kJ mol-1) was determined using Kissinger-Akahira-Sunose (KAS) method. Next, applied establish regeneration model function, revealing that carbon nanotubes followed reaction order (n = 1.36). The consistency kinetics validated by comparing experimental calculated thermoanalytical curves constant rate.
Language: Английский
Citations
0Molecules, Journal Year: 2025, Volume and Issue: 30(9), P. 1903 - 1903
Published: April 24, 2025
A series of catalysts were synthesized via a combination evaporation-induced self-assembly and spray pyrolysis; they then applied to the direct decomposition methane. Among them, Ni-Cu/MgO exhibited smallest Ni particle size (~9 nm), attributed Cu-induced suppression crystal growth during synthesis. These achieved highest carbon yield, primarily due enhanced dispersion nanoscale particles. The interaction between methane catalysts, as well structural electrical properties resulting nanotubes, such crystallinity conductivity, investigated with respect support material (MgO vs. Al2O3) metal composition (Ni Ni-Cu). findings provide valuable insights for designing advanced catalyst systems efficient conversion into high-value carbon-based materials.
Language: Английский
Citations
0Catalysis Letters, Journal Year: 2024, Volume and Issue: 154(8), P. 4780 - 4794
Published: April 24, 2024
Abstract Ni-based bi- and trimetallic Mn, Mg aluminum containing catalysts prepared by the solution combustion synthesis (SCS) method were tested in dry reforming of methane (DRM). As a comparison 12 wt.% Ni/α-Al 2 O 3 catalyst wet impregnation was also investigated. The characterized means XRD, N physisorption, H -TPR, CO -TPD, NH TPO, CHNS, TGA, SEM TEM. Formation crystalline MnAl 4 observed at high temperatures during SCS. average nickel particle size varied range 12–36 nm. Addition Mn promoted reduction Ni elevated amount strength basic sites. Graphical
Language: Английский
Citations
3Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154594 - 154594
Published: Aug. 6, 2024
Language: Английский
Citations
3Hybrid Advances, Journal Year: 2024, Volume and Issue: 6, P. 100221 - 100221
Published: June 6, 2024
Nickel aluminate nanoparticles (NiAl2O4 NPs) spinel structure is synthesized via a simple solution combustion method using aqueous nickel nitrate, aluminum nitrate and citric acid. The crystal microstructure of the prepared NiAl2O4 NPs are confirmed by powder X-ray diffraction (XRD), photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR) spectrum, scanning transmission electron microscopy (SEM/TEM). characterized applied on glassy carbon electrode (GCE) to design electrochemical sensor for detection dopamine (DA) cyclic voltammograms (CV) differential pulse anodic stripping voltammograms. proposed exhibits excellent sensing activity with low limit 1.78 μM applicable wide linear concentration range 10 140 μM. Further, well resolved voltammogram in presence interfering uric acid ascorbic
Language: Английский
Citations
2Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154399 - 154399
Published: July 31, 2024
Language: Английский
Citations
1Carbon Capture Science & Technology, Journal Year: 2024, Volume and Issue: 13, P. 100288 - 100288
Published: Sept. 4, 2024
Language: Английский
Citations
1International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 1, 2024
Language: Английский
Citations
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