Publications by authors named "Abdullah Alquraini"
This study introduces a sustainable biological approach for synthesizing silver nanoparticles (AgNPs) using Conocarpus seeds, aimed at improving the adsorption and photocatalytic degradation of methylene blue (MB) in wastewater treatment. The photocatalytic efficiency of AgNPs, synthesized under varying concentrations of silver nitrate (AgNO) and pH levels, was evaluated, together with the effectiveness of a photocatalytic reactor. The synthesized samples were characterized using scanning electron microscopy (SEM), thermogravimetric analysis (TGA), Fourier-transform infrared (FT-IR) spectroscopy, and atomic force microscopy (AFM).
View Article and Find Full Text PDFMethane Dry Reforming is one of the means of producing syngas. CeNi0.9Zr0.
View Article and Find Full Text PDFBarium-Promoted Yttria-Zirconia-Supported Ni Catalyst for Hydrogen Production via the Dry Reforming of Methane: Role of Barium in the Phase Stabilization of Cubic ZrO.
Ahmed Sadeq Al-Fatesh Rutu Patel Vijay Kumar Srivastava Ahmed Aidid Ibrahim Muhammad Awais Naeem Abdullah Ali Alquraini
ACS Omega
May 2022
Article Synopsis
- Developing cost-effective nonprecious metal-based catalysts for syngas production via dry reforming of methane is challenging, but a mechanochemical method was used to create Ba-promoted Ni-based catalysts on zirconia supports.
- Characterization techniques like BET surface area measurements and spectroscopy were employed to assess the catalysts, showing that the presence of Ba enhanced the performance and stability of the catalysts compared to others tested.
- The optimal 5Ni4Ba/YZr catalyst exhibited a high hydrogen yield of 79% for 7 hours and demonstrated the highest hydrogen formation rate and the lowest activation energy among the tested systems.
Article Synopsis
- The study investigates the production of hydrogen via CO reforming of methane using 5Ni/ZrO catalysts, focusing on the effect of various modifiers and promoters.
- The research establishes that the yttria (YO) modifier significantly enhances catalytic performance, achieving a hydrogen yield of 53% with a 15% loading, while the use of strontium (Sr) promotes yields up to 62%.
- Characterization techniques revealed improved textural properties and basicity of the catalysts, with the promoted catalysts showing reduced carbon deposition compared to their unpromoted counterparts.