Sayed Khatiboleslam Sadrnezhaad

Condolencias

Condolencias:
para el martirio de Imam Sadegh

Imam Sadegh^{(paz sea con él)}: "Busqué entrada rápida a los cielos; Lo encontré en el trabajo sincero por Dios."
"Busqué consuelo; entonces me encontré en la devoción."
"Busqué corazón brillante; entonces me encontré en el pensamiento y el llanto."
"Busqué a la grandeza y el honor; entonces me encontré en benevolente para los siervos de Dios."

Imam Sadegh^{(paz sea con él)}: "Busqué valiosas obras; entonces me encontré en la tolerancia."
"Busqué por la dignidad; entonces me encontré en el conocimiento."
"Busqué consuelo de corazón; Lo encontré en pequeña cantidad."
"Busqué a la dignidad, a continuación, lo encontré en la integridad."
"Busqué concomitancia con la gente, y luego me encontré en la cortesía."

Nuevo material de cátodo

Li Ion Battery:

On the functionality of the polypyrrole nanostructures for surface modification of Co-free Li-rich layered oxide cathode applied in lithium-ion batteries

P. Vahdatkhah, S.K. Sadrnezhaad, O. Voznyy

Journal of Electroanalytical Chemistry

No. 914 (2022) 116317

The PPy(polypyrrole)/NP (nanoparticle)/NR(nanorod)/NW (nanowire)@Co-free Li-rich oxide (PPy-NP/NR/NW@LMNO) composites were prepared. PPy improved the ionic and electronic conductivity of the LMNO cathodes. PPy-NP@LMNO cathode delivered high discharge capacity of 191 mAh g⁻¹, with capacity retention of 96%, after ∼ 200 cycles at 0.1C. Higher capacity and longer cycle-life contributed to the optimized intercalation and doping pseudocapacitive charge storage behaviour.

Material innovador

Catalyst for CH₄ reforming:

A two step Microwave-assisted coke resistant mesoporous Ni-Co catalyst for methane steam reforming

Azita Etminan, S.K. Sadrnezhaad

Fuel

317 (2022) 12241

Methane steam reforming is an assuring reaction using steam to produce H₂as clean energy over a nicκel- based catalyst. We synthesized mesoporous monometallic NiMgAl2O4 and bimetallic NiCoMgAl2O4 catalysts in a two-step combustion method using a mix of fuels and powder metallurgy. The evaluation tests at 750 ◦C showed the bimetallic catalyst has the highest conversion of 99.30% with low carbon deposition of 0.09% after 15 h.

Recubrimiento pulverizado

New Nanophotocatalyst:

Ni0.8Co0.2/Zn0.8Cd0.2S/g-C3N4 ternary nano- photocatalyst for improved visible-light-driven photocatalytic H2 evolution and pollutants degradation

Fatemeh Sousani, S.K. Sadrnezhaad, Parvin Abachi
Hossein Mahtabpour

International Journal of Hydrogen Energy
51C (2024) 281-299

The catalytic performance of Ni0.8Co0.2/Zn0.8Cd0.2S/g-C3N4 is attributed to the formation of a direct Z-scheme heterojunction between Ni0.8Co0.2/Zn0.8Cd0.2S and g-C3N4, which can accelerate the separation and migration of photogenerated carriers. The H2 evolution rate of Ni0.8Co0.2/Zn0.8Cd0.2S/g-C3N4 during the experiments did not significantly decrease, suggesting that Ni0.8Co0.2/Zn0.8Cd0.2S/g-C3N4 exhibits durability. Consequently, this ternary nano-photocatalyst can be a potential photocatalytic material for H2 evolution under visible light.

Implante Dental Nitinol

NiTi Lumbar Vertebra:

Design and preparation of nickel-titanium implant for lumbar vertebra

M. Parsafara, S.K. Sadrnezhaad, N.H. Nemati

Journal of Alloys and Compounds
936 (2023), 167969

A simple and affordable sintering/braiding technique produced a shape memory Nickel Titanium implant aiming to have outstanding shock absorption, strength, biocompatibility, and cell growth capability for lumbar vertebra substitution. The elastic modulus of the sample was 3.5 GPa, and its compressive strength at 6 % strain was 200 MPa. The alloy was thermoelastic, making it a good candidate for placement in bone tissue. The biocompatibility and non-toxicity of the bone cells, with cell viability of over 4 × 10⁴ cells within 48 h, indicated that the produced implant had suitable cellular biocompatibility.