Gilbert Nessim

Enti collegati: Bar-Ilan University
Ruolo: BIU Scientific Responsible
Gilbert Daniel Nessim is Associate Professor at the Bar-Ilan University. His research laboratory focuses on the synthesis of 1D and 2D nanostructures using state-of-the-art chemical vapor deposition (CVD) equipment. The scientific focus is to better understand the complex growth mechanisms of these nanostructures, to possibly functionalize them to tune their properties, and to integrate them into innovative devices.

We extensively collaborate with other groups in BIU, with other universities in Israel, with many groups in Italy (Politecnico di Milano, Sant’Anna di Pisa, U. Verona, U. Bergamo, Ca Foscari, etc.), and in the USA (Prof. Cary Pint, Vanderbilt) to do advanced characterizations of our nanomaterials and to integrate them into functional devices for electronic, mechanic, and energy applications.

Pubblicazioni

Pubblicazione Chen, F.; Wang, J.; Li, B.; Yao, C.; Bao, H.; Shi, Y. Nanocasting Synthesis of Ordered Mesoporous Crystalline WSe2 as Anode Material for Li-Ion Batteries. Mater. Lett. 2014, 136, 191– 194, DOI: 10.1016/j.matlet.2014.08.050 [Crossref], [CAS], Google Schol
Scalable Synthesis of Few-Layered 2D Tungsten Diselenide (2H-WSe2) Nanosheets Directly Grown on Tungsten (W) Foil Using Ambient-Pressure Chemical Vapor Deposition for Reversible Li-Ion Storage
Gilbert Nessim
We report a facile two-furnace APCVD synthesis of 2H-WSe2. A systematic study of the process parameters is performed to show the formation of the phase-pure material. Extensive characterization of the bulk and exfoliated material confirm that 2H-WSe2 is layered (i.e., 2D). X-ray diffraction (XRD) confirms the phase, while high-resolution scanning electron microscopy (HRSEM), high-resolution transmission electron microscopy (HRTEM), and atomic force microscopy (AFM) clarify the morphology of the material. Focused ion beam scanning electron microscopy (FIB-SEM) estimates the depth of the 2H-WSe2 formed on W foil to be around 5–8 μm, and Raman/UV–vis measurements prove the quality of the exfoliated 2H-WSe2. Studies on the redox processes of lithium-ion batteries (LiBs) show an increase in capacity up to 500 cycles. On prolonged cycling, the discharge capacity up to the 50th cycle at 250 mA/g of the material shows a stable value of 550 mAh/g. These observations indicate that exfoliated 2H-WSe2 has promising applications as an LiB electrode material.

Progetti

Progetto
ADMAIORA
Medicina rigenerativa
GENERAL INFORMATION ADMAIORA (ADvanced nanocomposite MAterIals fOr in situ treatment and ultRAsound-mediated management of osteoarthritis) is a research project funded under the Horizon 2020 EU Framework Programme (Call: H2020-NMBP-TR-IND-2018, Research and Innovation action), coordinated by Prof. Leonardo Ricotti at the Scuola Superior
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