International Journal of Chemical and Biochemical Sciences, 2021
The study focused on using locally produced palm kernel oil, palm ethanol and CaO catalyst from g... more The study focused on using locally produced palm kernel oil, palm ethanol and CaO catalyst from guinea fowl eggshells for biodiesel production. The physicochemical properties such as density (0.8936±0.00008165 g/ml), viscosity (83.32±0.193cP/P), refractive index (1.4540±0.00036), pH (5.89±0.084 mol/L H +), acid value (13.9±0.3 mgKOH/g), saponification value (283.305±23.24 mgKOH/g) and iodine value (20.7±5.77 mgI 2 /g) of the crude oil was determined. The transesterification process was carried out by optimizing reaction conditions using the One-Factor (OFAC) at a time method. The biodiesel produced from optimum conditions had density (0.877±0.001g/ml), iodine value (13.97±1.037 mgI 2 /g) and cetane index (76.215±0.531). The results also gave a kinematic viscosity (7.87±0.531 mm²/s), pour point (8.667±0.943°C), acid value (0.92±0.145 mgKOH/g) and saponification value (161.75±11.017 mgKOH/g).
Metal–organic frameworks (MOFs) have received significant attention thanks to their promising fea... more Metal–organic frameworks (MOFs) have received significant attention thanks to their promising features in the storage and separation of guest molecules. MOFs without open metal sites are emerging as they are often less susceptible to poisoning compared to those with open metal sites. However, a complete understanding of the binding and gas separation mechanisms in such materials is still missing. In this work, we perform a comparative study of two classes of vanadium-based MOFs without open metal sites: MFM-300-V$$^\text{(III)}$$ (III) and MFM-300-V$$^\text{(IV)}$$ (IV) , as well as MIL-47-V$$^\text{(III)}$$ (III) and MIL-47-V$$^\text{(IV)}$$ (IV) . We employ first-principles van der Waals density functional theory to find the optimal binding conformations and binding energies of a series of small hydrocarbons within the pores of the aforementioned MOFs. Our study provides insight into the host–guest interactions in such MOFs without open metal sites, especially the role played by t...
International Journal of Chemical and Biochemical Sciences, 2021
The study focused on using locally produced palm kernel oil, palm ethanol and CaO catalyst from g... more The study focused on using locally produced palm kernel oil, palm ethanol and CaO catalyst from guinea fowl eggshells for biodiesel production. The physicochemical properties such as density (0.8936±0.00008165 g/ml), viscosity (83.32±0.193cP/P), refractive index (1.4540±0.00036), pH (5.89±0.084 mol/L H +), acid value (13.9±0.3 mgKOH/g), saponification value (283.305±23.24 mgKOH/g) and iodine value (20.7±5.77 mgI 2 /g) of the crude oil was determined. The transesterification process was carried out by optimizing reaction conditions using the One-Factor (OFAC) at a time method. The biodiesel produced from optimum conditions had density (0.877±0.001g/ml), iodine value (13.97±1.037 mgI 2 /g) and cetane index (76.215±0.531). The results also gave a kinematic viscosity (7.87±0.531 mm²/s), pour point (8.667±0.943°C), acid value (0.92±0.145 mgKOH/g) and saponification value (161.75±11.017 mgKOH/g).
Metal–organic frameworks (MOFs) have received significant attention thanks to their promising fea... more Metal–organic frameworks (MOFs) have received significant attention thanks to their promising features in the storage and separation of guest molecules. MOFs without open metal sites are emerging as they are often less susceptible to poisoning compared to those with open metal sites. However, a complete understanding of the binding and gas separation mechanisms in such materials is still missing. In this work, we perform a comparative study of two classes of vanadium-based MOFs without open metal sites: MFM-300-V$$^\text{(III)}$$ (III) and MFM-300-V$$^\text{(IV)}$$ (IV) , as well as MIL-47-V$$^\text{(III)}$$ (III) and MIL-47-V$$^\text{(IV)}$$ (IV) . We employ first-principles van der Waals density functional theory to find the optimal binding conformations and binding energies of a series of small hydrocarbons within the pores of the aforementioned MOFs. Our study provides insight into the host–guest interactions in such MOFs without open metal sites, especially the role played by t...
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Papers by Timothy Quainoo