Danyal Ahmad is a materials physics researcher specializing in ferrite nanomaterials and rare-earth-doped magnetic nanoparticles. His master’s research focused on the synthesis of cerium-doped Ni-Cd ferrite nanoparticles using the sol–gel auto-combustion method and investigating their structural, electrical, dielectric, and optical properties.
He has hands-on experience with advanced characterization techniques, including XRD, SEM, EDX, UV-Vis spectroscopy, and LCR measurements. His research work has been published in international peer-reviewed journals such as Coatings, Luminescence, and Crystals. His broader research interests include nanocomposites, oxide membranes for energy applications, MXene-based materials, and electrocaloric cooling materials.
EDUCATION
M Phil Physics
Riphah International University, Islamabad
CGPA: 3.56/4.00
Thesis: Electrical, Optical, and Dielectric Properties of Cerium-Doped Nanoparticles
B.S. Physics
University of Gujrat, Pakistan
CGPA: 3.42/4.00
RESEARCH, TEACHING, or OTHER INTERESTS
Condensed Matter Physics, Materials Science, Renewable Energy, Sustainability and the Environment, Surfaces, Coatings and Films
3
Scopus Publications
48
Scholar Citations
3
Scholar h-index
3
Scholar i10-index
Scopus Publications
Structural, Optical and Dielectric Properties of Holmium-Doped Nickel-Cadmium Ferrite Nanoparticles Synthesized by Sol-Gel Auto-Combustion Method Danyal Ahmad, Asad Ali, Zahid Abbas, Abid Zaman, Amnah Mohammed Alsuhaibani, et al. Crystals, 2023 Nanoparticles where holmium was substituted with nickel-cadmium Ni0.5Cd0.5HoxFe2-xO4 (X = 0, 0.02, and 0.04) ferrites were synthesized through a sol-gel auto-combustion process to reveal their structural and physical properties. The synthesized nanoparticles were characterized using X-ray diffraction (XRD), a scanning electron microscope (SEM), Fourier transform infrared ray (FTIR) spectroscopy, and impedance spectroscopy techniques. XRD revealed the formation of the cubic crystal structure had a preferential orientation along (311). By including holmium, the lattice constant was reduced, while the average crystallite size was increased. SEM analysis revealed that the nanoparticles exhibited regular shapes, and the average grain size increased with the holmium content. FTIR spectroscopy determined that all the organic and inorganic materials had an absorption range of 400 to 4000 cm−1. The dielectric properties were measured between the frequency ranges of 1 kHz and 2 MHz. This shows that the tangent loss and the dielectric constant were raised when the concentration of holmium was increased.
Synthesis and characterization of ce3+-doped ni0.5cd0.5fe2o4 nanoparticles by sol–gel auto-combustion method Danyal Ahmad, Nasir Mehboob, Abid Zaman, Nabeel Ahmed, Kashif Ahmed, et al. Coatings, 2021 Cerium (Ce)-doped Ni0.5Cd0.5CexFe2−xO4 (0.0 ≤ x ≤ 0.20) was synthesized using the sol–gel auto-combustion method. X-ray diffraction (XRD) analysis revealed that all the samples retained spinel cubic crystal structure with space group Fd3m at 800 °C. Crystal structure parameters, such as lattice constant, average crystallite size, and X-ray density were estimated from the major XRD (311) peak. Bulk density and porosity were also calculated. The average crystallite size was estimated to be in the range of 20–24 nm. SEM images displayed agglomerated particles with a porous morphology. The dielectric constant (ε′) increased and the dielectric loss tangent (tanδ) decreased with rising Ce concentration. The hysteresis loop (M–H loop) was measured at room temperature using a vibrating-sample magnetometer (VSM), which showed a nonlinear decrease in magnetization and coercivity with increasing Ce concentration.
RECENT SCHOLAR PUBLICATIONS
Structural, optical and dielectric properties of holmium-doped nickel-cadmium ferrite nanoparticles synthesized by sol-gel auto-combustion method D Ahmad, A Ali, Z Abbas, A Zaman, AM Alsuhaibani, V Tirth, MR Sarker, ... Crystals 13 (3), 495 , 2023 2023 Citations: 14
Role of Mycorrhizae in Nutrient Acquisition in Relation to NPK Fertilizers: A Review MN Khan, D Ahmad, H Arif, S Wahab, S Iqbal, F Zaman, M Bibi, F Mabood, ... 2023 Citations: 1
Enhanced the Cu2+ doping on the structural, optical and electrical properties of zinc oxide (ZnO) nanoparticles for electronic device applications K Ahmed, N Mehboob, A Zaman, A Ali, M Mushtaq, D Ahmad, N Ahmed, ... Journal of Luminescence 250, 119112 , 2022 2022 Citations: 15
Synthesis and Characterization of Ce 3+ -Doped Ni 0.5 Cd 0.5 Fe 2 O 4 Nanoparticles by Sol–Gel Auto-Combustion Method D Ahmad, N Mehboob, A Zaman, N Ahmed, K Ahmed, M Mushtaq, ... Coatings 11 (10), 1156 , 2021 2021 Citations: 18
Synthesis and Characterization of Ce3+-Doped Ni0. 5Cd0. 5Fe2O4 Nanoparticles by Sol–Gel Auto-Combustion Method. Coatings 2021, 11, 1156 D Ahmad, N Mehboob, A Zaman, N Ahmed, K Ahmed, M Mushtaq, ... s Note: MDPI stays neutral with regard to jurisdictional claims in published … , 2021 2021
Design and Modeling of a Fuel Cell System Using Biomass Feedstock as a Biofuel A Rafique, MH Jaffery, A Ali, MR Naqvi, I Shakir, M Ehsan, D Ahmad, ... Fuel Cells 20 (1), 89-97 , 2020 2020
MOST CITED SCHOLAR PUBLICATIONS
Synthesis and Characterization of Ce 3+ -Doped Ni 0.5 Cd 0.5 Fe 2 O 4 Nanoparticles by Sol–Gel Auto-Combustion Method D Ahmad, N Mehboob, A Zaman, N Ahmed, K Ahmed, M Mushtaq, ... Coatings 11 (10), 1156 , 2021 2021 Citations: 18
Enhanced the Cu2+ doping on the structural, optical and electrical properties of zinc oxide (ZnO) nanoparticles for electronic device applications K Ahmed, N Mehboob, A Zaman, A Ali, M Mushtaq, D Ahmad, N Ahmed, ... Journal of Luminescence 250, 119112 , 2022 2022 Citations: 15
Structural, optical and dielectric properties of holmium-doped nickel-cadmium ferrite nanoparticles synthesized by sol-gel auto-combustion method D Ahmad, A Ali, Z Abbas, A Zaman, AM Alsuhaibani, V Tirth, MR Sarker, ... Crystals 13 (3), 495 , 2023 2023 Citations: 14
Role of Mycorrhizae in Nutrient Acquisition in Relation to NPK Fertilizers: A Review MN Khan, D Ahmad, H Arif, S Wahab, S Iqbal, F Zaman, M Bibi, F Mabood, ... 2023 Citations: 1
Synthesis and Characterization of Ce3+-Doped Ni0. 5Cd0. 5Fe2O4 Nanoparticles by Sol–Gel Auto-Combustion Method. Coatings 2021, 11, 1156 D Ahmad, N Mehboob, A Zaman, N Ahmed, K Ahmed, M Mushtaq, ... s Note: MDPI stays neutral with regard to jurisdictional claims in published … , 2021 2021
Design and Modeling of a Fuel Cell System Using Biomass Feedstock as a Biofuel A Rafique, MH Jaffery, A Ali, MR Naqvi, I Shakir, M Ehsan, D Ahmad, ... Fuel Cells 20 (1), 89-97 , 2020 2020
