Salmie Suhana Che Abdullah
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Preferred name
Salmie Suhana Che Abdullah
Official Name
Salmie Suhana, Che Abdullah
Alternative Name
Che Abdullah, Salmie Suhana Binti
Abdullah, S. S.Che
Abdullah, Salmie Suhana Che
Che Abdullah, S. S.
Abdullah, Salmie Suhana Binti Che
Abdullah, S. S.C.
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Scopus Author ID
55212317900

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  • Publication
    Effect of H₂/N₂ mixtures on reduction of nickel oxide
    (Trans Tech Publications Ltd., 2020)
    Salmie Suhana Che Abdullah
    ;
    Nur Nadia Mohd Nasri
    ;
    Siti Hawa Mohamed Salleh
    ;
    Nur Hidayah Ahmad Zaidi
    ;
    Imaduddin Helmi Wan Nordin
    This paper describes the reduction of nickel oxide under different gas mixture. The influence of gas mixture on phase, density, morphology and pore size of reduced nickel oxide were studied. Nickel oxide pellets sintered at 1400⁰C were reduced under various hydrogen-nitrogen gas mixtures, namely 40% H₂-60% N₂, 60% H₂-40% N₂, 80% H₂-20% N₂. Phase identification, density measurement and observation of morphology were conducted on samples before and after reduction process. Under all gas mixtures, nickel oxide was completely reduced to nickel. Density of the samples decreased in the range of 21% to 32% depends on H₂ percentage used. Results from the density shows that the higher the H₂ gas concentration, the smaller the density changes. Significant change in porosity of the sample before and after reduction was observed. Size of pore after reduction determined by H₂ concentration used during reduction where the higher the H₂ concentration resulted in large pore size.
      10  1
  • Publication
    Synthesis and electrical properties of FeSm Co doped CeO₂
    ( 2024-12)
    Nur Fathin Syuhada Samsudin
    ;
    Salmie Suhana Che Abdullah
    ;
    Norzarul Asri Kamis
    High productivity and environmental consciousness have made the environmentally friendly features of solid oxide fuel cells (SOFC) an alternative energy source that has attracted attention as a potential solution to problems such as pollution, global warming, and lack of fuel availability. In the field of SOFC, extensive research has been focused on the development of cells that exhibit good electrochemical performances and are highly durable. Samarium doped ceria (SDC) has become the material that is frequently investigated as a potential electrolyte for SOFC. Compositional modification of SDC doped with Fe as second dopant was investigated in this project. The samples were synthesized using a solid state reaction method from raw materials, which are cerium oxide, samarium oxide, and iron oxide, then sintered at temperatures of 1480 oC. Different concentrations of Fe (0-10 mol%) were doped in SDC. To assess the effects of double dopants on the crystal structure and electrical characteristics, X-ray diffraction (XRD) analysis was employed for phase confirmation, and impedance was measured to determine electrical conductivity. All samples were sintered at 1480 oC and have a relative density more than 95%. It was discovered that, in the lower temperature range of 300-600 oC, significant improvement can be seen when Fe was doped in SDC, where 5 mol% Fe doped SDC shows the highest conductivity with a value of 1.09 S/m at 600 oC, which is more than 3 times higher than SDC, showing that Fe is a potential candidate as second dopant in SDC.
      1  9