Sayed Khatiboleslam Sadrnezhaad

Condolencia

Condolencias:
para el aniversario de Ashura

El 10 de Muharram de 61 AHL (~ 20 de octubre de 680 ACE), el Imam Hossein^{la paz sea con él} (el nieto del Profeta Muhammad^{la paz sea con él}) y sus 72 compañeros resistieron heroicamente a un ejército de miles enviados por el gobernante tirano de su tiempo; hasta que todos fueron martirizados. Basado en las enseñanzas de Hossein^{la paz sea con él}, el martirio honorable es mucho mejor que vivir bajo crueldad, injusticia y opresión.

Una lección importante: el evento de Ashura se ha convertido en una inspiración y un faro para que las generaciones futuras no se rindan a la tiranía, la transgresión y el engaño. El imám Hussein^{la paz sea con él} ha enseñado lecciones de dignidad, orgullo, victoria y un eslogan eterno: "¡Nunca Humillado!"

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/[email protected]) composites were prepared. PPy improved the ionic and electronic conductivity of the LMNO cathodes. [email protected] 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

CuO/g-C3N4 nanocomposite:

One-pot microwave synthesis of hierarchical C-doped CuO dandelions/g-C3N4 nanocomposite with enhanced photostability for photoelectrochemical water splitting

S.M. Hosseini H. , R.S. Moakhar, F. Soleimani,
S.K. Sadrnezhaad, S. Masudy-Panah, R. Katal, A. Seza, N. Ghane, S. Ramakrishna

Applied Surface Science
530 (2020) 14727

C-doped CuO/g-C3N4 with a unique microstructure, enhanced hotoelectrochemical performance, and considerable photostability is synthesized under microwave irradiation.The product demonstrates 227% photoelectrocatalytic activity enhancement over CuO and ~80% photocurrent retention. The nanocomposite synergistically integrates the advantages of both the constituents, offering a low- cost, efficient photocathode for PEC water splitting, photocatalytic hydrogen evolution, and degradation of pollutants.

Implante Dental Nitinol

Artículo reciente:

Porous shape memory dental implant by reactive sintering of TiH₂–Ni-Urea mixture

S. Akbarinia, S.K. Sadrnezhaad, S.A.Hosseini

Materials Science and Engineering: C
107 (2020), 110213

We produced bifurcated bone-like shape memory implant with desirable tooth-root fixation capability by compact-sintering of TiH2-Ni-urea mixture. The primary constituents of the porous product were Ni and Ti. We could adjust the pores’ shape, size, and interconnectivity for favorite bone ingrowth by using urea as a space holder. Bending tests showed 0.9 mm recoverable deflection for specimens which assisted immediate self-fixation of the implant into the jaw bone cavity.