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Papers by Gilbert Nessim

Research paper thumbnail of Carbon nanotubes synthesis using siliceous breccia as a catalyst source

Diamond and Related Materials, 2019

Research paper thumbnail of Chemistry of Carbon Nanotubes

Encyclopedia of Nanotechnology, 2012

Research paper thumbnail of A mini-review focusing on ambient-pressure chemical vapor deposition (AP-CVD) based synthesis of layered transition metal selenides for energy storage applications

Materials Advances

2D layered transition metal selenides grown in ambient pressure CVD for promising energy storage ... more 2D layered transition metal selenides grown in ambient pressure CVD for promising energy storage applications.

Research paper thumbnail of ChemInform Abstract: Ultra Fast Elemental Synthesis of High Yield Copper Chevrel Phase with High Electrochemical Performance

Research paper thumbnail of Strong light-matter coupling between a molecular vibrational mode in a PMMA film and a low-loss mid-IR microcavity

Annalen der Physik, Nov 17, 2015

Research paper thumbnail of Towards promising electrochemical technology for load leveling applications: extending cycle life of lead acid batteries by the use of carbon nano-tubes (CNTs)

Energy and Environmental Science, 2013

ABSTRACT

Research paper thumbnail of Low Temperature Synthesis of Vertically Aligned Carbon Nanotubes with Electrical Contact to Metallic Substrates Enabled by Thermal Decomposition of the Carbon Feedstock

Nano Letters, Aug 31, 2009

Research paper thumbnail of Towards the growth of 3D forests of carbon nanotubes: Selective height control using reservoirs and overlayers

Journal of Material Sciences & Engineering, Jun 19, 2017

Research paper thumbnail of Thiadiazole containing N- and S-rich highly ordered periodic mesoporous organosilica for efficient removal of Hg(ii) from polluted water

Chemical Communications, 2020

We report a new N- and S-rich highly ordered periodic mesoporous organosilica material DMTZ-PMO b... more We report a new N- and S-rich highly ordered periodic mesoporous organosilica material DMTZ-PMO bearing thiadiazole and thiol moieties inside the pore-wall for very efficient and fast removal of Hg2+ from polluted water (uptake = 2081 mg g−1).

Research paper thumbnail of Nickel-Rich Phosphide (Ni12P5) Nanosheets Coupled with Oxidized Multiwalled Carbon Nanotubes for Oxygen Evolution

ACS Applied Nano Materials, 2020

Research paper thumbnail of Electrically conductive cotton fabric coatings developed by silica sol-gel precursors doped with surfactant-aided dispersion of vertically aligned carbon nanotubes fillers in organic solvent-free aqueous solution

Journal of Colloid and Interface Science, 2021

Research paper thumbnail of 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

Research paper thumbnail of Modulating the height of carbon nanotube forests by controlling the molybdenum thin film reservoir thickness

Nanoscale, 2018

The use of a thin layer of molybdenum delays growth termination leading to up to 5X taller CNT ca... more The use of a thin layer of molybdenum delays growth termination leading to up to 5X taller CNT carpets.

Research paper thumbnail of Ultra fast elemental synthesis of high yield copper Chevrel phase with high electrochemical performance

Journal of Solid State Chemistry, Apr 1, 2012

ABSTRACT Self-propagating High-temperature Synthesis (SHS) was applied for the first time to prep... more ABSTRACT Self-propagating High-temperature Synthesis (SHS) was applied for the first time to prepare Chevrel phases, MxMo6T8 (M=metal, T=S, Se). Combined electron microscopy and X-ray powder diffraction were used to clarify the chemical reactions in the Cu–Mo–S system. It was shown that the replacement of the frontal combustion by thermal explosion increased the Cu2Mo6S8 yield from 86 to 96%, while the synthesis remained ultra-fast: 10–20 min in a hot furnace (1000 °C), as compared to at least 17 h of heating for the conventional solid state technique. The synthesized material conformed to the requirements of cathode precursors for Mg batteries, and its electrochemically activity was similar to that of the conventional product.

Research paper thumbnail of One-Step Synthesis of a Binder-Free, Stable, and High-Performance Electrode; Cu-O|Cu3P Heterostructure for the Electrocatalytic Methanol Oxidation Reaction (MOR)

Nanomaterials

Although direct methanol fuel cells (DMFCs) have been spotlighted in the past decade, their comme... more Although direct methanol fuel cells (DMFCs) have been spotlighted in the past decade, their commercialization has been hampered by the poor efficiency of the methanol oxidation reaction (MOR) due to the unsatisfactory performance of currently available electrocatalysts. Herein, we developed a binder-free, copper-based, self-supported electrode consisting of a heterostructure of Cu3P and mixed copper oxides, i.e., cuprous–cupric oxide (Cu-O), as a high-performance catalyst for the electro-oxidation of methanol. We synthesized a self-supported electrode composed of Cu-O|Cu3P using a two-furnace atmospheric pressure–chemical vapor deposition (AP-CVD) process. High-resolution transmission electron microscopy analysis revealed the formation of 3D nanocrystals with defects and pores. Cu-O|Cu3P outperformed the MOR activity of individual Cu3P and Cu-O owing to the synergistic interaction between them. Cu3P|Cu-O exhibited a highest anodic current density of 232.5 mAcm−2 at the low potential...

Research paper thumbnail of Concentration Polarization

Encyclopedia of Nanotechnology, 2012

Research paper thumbnail of Controlling the morphology while retaining the unique SnS stoichiometry of bulk tin sulfide produced by the rapid method of heating Sn foil in sulfur vapor by vapor phase reaction using two-furnace chemical vapor deposition system

Research paper thumbnail of Synthesis of Nickel Sulfide Dendrites from Nickel Foil Using Thermal Annealing

SSRN Electronic Journal, 2021

Similarly to other transition metal sulfides, nickel sulfide nanocrystals can be potentially used... more Similarly to other transition metal sulfides, nickel sulfide nanocrystals can be potentially used for functional device applications. However, controlling morphology and stoichiometry to target specific applications is a synthesis challenge. In this work we developed a rapid, one-step, chemical vapor deposition synthesis of nickel sulfide dendritic nanostructures with fractal geometry. Microtome-EDS compositional analysis of the mature crystal indicates a trend of decreasing sulfur and increasing nickel concentration towards the tip of the mature crystals. Following thorough investigation of these nanocrystals at different stages of their nucleation and growth by means of XRD, HR-SEM, HR-TEM, and Raman spectroscopy, we suggest possible kinetic mechanisms for the crystal formation and development. This work contributes to the understanding of growth mechanisms of dendritic structures with complex morphology.

Research paper thumbnail of 3D‐Graphene Decorated with g‐C 3 N 4 /Cu 3 P Composite: A Noble Metal‐free Bifunctional Electrocatalyst for Overall Water Splitting

Research paper thumbnail of Scalable Silver Oxo-Sulfide Catalyst for Electrochemical Water Splitting

ACS Applied Energy Materials, 2018

Research paper thumbnail of Carbon nanotubes synthesis using siliceous breccia as a catalyst source

Diamond and Related Materials, 2019

Research paper thumbnail of Chemistry of Carbon Nanotubes

Encyclopedia of Nanotechnology, 2012

Research paper thumbnail of A mini-review focusing on ambient-pressure chemical vapor deposition (AP-CVD) based synthesis of layered transition metal selenides for energy storage applications

Materials Advances

2D layered transition metal selenides grown in ambient pressure CVD for promising energy storage ... more 2D layered transition metal selenides grown in ambient pressure CVD for promising energy storage applications.

Research paper thumbnail of ChemInform Abstract: Ultra Fast Elemental Synthesis of High Yield Copper Chevrel Phase with High Electrochemical Performance

Research paper thumbnail of Strong light-matter coupling between a molecular vibrational mode in a PMMA film and a low-loss mid-IR microcavity

Annalen der Physik, Nov 17, 2015

Research paper thumbnail of Towards promising electrochemical technology for load leveling applications: extending cycle life of lead acid batteries by the use of carbon nano-tubes (CNTs)

Energy and Environmental Science, 2013

ABSTRACT

Research paper thumbnail of Low Temperature Synthesis of Vertically Aligned Carbon Nanotubes with Electrical Contact to Metallic Substrates Enabled by Thermal Decomposition of the Carbon Feedstock

Nano Letters, Aug 31, 2009

Research paper thumbnail of Towards the growth of 3D forests of carbon nanotubes: Selective height control using reservoirs and overlayers

Journal of Material Sciences & Engineering, Jun 19, 2017

Research paper thumbnail of Thiadiazole containing N- and S-rich highly ordered periodic mesoporous organosilica for efficient removal of Hg(ii) from polluted water

Chemical Communications, 2020

We report a new N- and S-rich highly ordered periodic mesoporous organosilica material DMTZ-PMO b... more We report a new N- and S-rich highly ordered periodic mesoporous organosilica material DMTZ-PMO bearing thiadiazole and thiol moieties inside the pore-wall for very efficient and fast removal of Hg2+ from polluted water (uptake = 2081 mg g−1).

Research paper thumbnail of Nickel-Rich Phosphide (Ni12P5) Nanosheets Coupled with Oxidized Multiwalled Carbon Nanotubes for Oxygen Evolution

ACS Applied Nano Materials, 2020

Research paper thumbnail of Electrically conductive cotton fabric coatings developed by silica sol-gel precursors doped with surfactant-aided dispersion of vertically aligned carbon nanotubes fillers in organic solvent-free aqueous solution

Journal of Colloid and Interface Science, 2021

Research paper thumbnail of 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

Research paper thumbnail of Modulating the height of carbon nanotube forests by controlling the molybdenum thin film reservoir thickness

Nanoscale, 2018

The use of a thin layer of molybdenum delays growth termination leading to up to 5X taller CNT ca... more The use of a thin layer of molybdenum delays growth termination leading to up to 5X taller CNT carpets.

Research paper thumbnail of Ultra fast elemental synthesis of high yield copper Chevrel phase with high electrochemical performance

Journal of Solid State Chemistry, Apr 1, 2012

ABSTRACT Self-propagating High-temperature Synthesis (SHS) was applied for the first time to prep... more ABSTRACT Self-propagating High-temperature Synthesis (SHS) was applied for the first time to prepare Chevrel phases, MxMo6T8 (M=metal, T=S, Se). Combined electron microscopy and X-ray powder diffraction were used to clarify the chemical reactions in the Cu–Mo–S system. It was shown that the replacement of the frontal combustion by thermal explosion increased the Cu2Mo6S8 yield from 86 to 96%, while the synthesis remained ultra-fast: 10–20 min in a hot furnace (1000 °C), as compared to at least 17 h of heating for the conventional solid state technique. The synthesized material conformed to the requirements of cathode precursors for Mg batteries, and its electrochemically activity was similar to that of the conventional product.

Research paper thumbnail of One-Step Synthesis of a Binder-Free, Stable, and High-Performance Electrode; Cu-O|Cu3P Heterostructure for the Electrocatalytic Methanol Oxidation Reaction (MOR)

Nanomaterials

Although direct methanol fuel cells (DMFCs) have been spotlighted in the past decade, their comme... more Although direct methanol fuel cells (DMFCs) have been spotlighted in the past decade, their commercialization has been hampered by the poor efficiency of the methanol oxidation reaction (MOR) due to the unsatisfactory performance of currently available electrocatalysts. Herein, we developed a binder-free, copper-based, self-supported electrode consisting of a heterostructure of Cu3P and mixed copper oxides, i.e., cuprous–cupric oxide (Cu-O), as a high-performance catalyst for the electro-oxidation of methanol. We synthesized a self-supported electrode composed of Cu-O|Cu3P using a two-furnace atmospheric pressure–chemical vapor deposition (AP-CVD) process. High-resolution transmission electron microscopy analysis revealed the formation of 3D nanocrystals with defects and pores. Cu-O|Cu3P outperformed the MOR activity of individual Cu3P and Cu-O owing to the synergistic interaction between them. Cu3P|Cu-O exhibited a highest anodic current density of 232.5 mAcm−2 at the low potential...

Research paper thumbnail of Concentration Polarization

Encyclopedia of Nanotechnology, 2012

Research paper thumbnail of Controlling the morphology while retaining the unique SnS stoichiometry of bulk tin sulfide produced by the rapid method of heating Sn foil in sulfur vapor by vapor phase reaction using two-furnace chemical vapor deposition system

Research paper thumbnail of Synthesis of Nickel Sulfide Dendrites from Nickel Foil Using Thermal Annealing

SSRN Electronic Journal, 2021

Similarly to other transition metal sulfides, nickel sulfide nanocrystals can be potentially used... more Similarly to other transition metal sulfides, nickel sulfide nanocrystals can be potentially used for functional device applications. However, controlling morphology and stoichiometry to target specific applications is a synthesis challenge. In this work we developed a rapid, one-step, chemical vapor deposition synthesis of nickel sulfide dendritic nanostructures with fractal geometry. Microtome-EDS compositional analysis of the mature crystal indicates a trend of decreasing sulfur and increasing nickel concentration towards the tip of the mature crystals. Following thorough investigation of these nanocrystals at different stages of their nucleation and growth by means of XRD, HR-SEM, HR-TEM, and Raman spectroscopy, we suggest possible kinetic mechanisms for the crystal formation and development. This work contributes to the understanding of growth mechanisms of dendritic structures with complex morphology.

Research paper thumbnail of 3D‐Graphene Decorated with g‐C 3 N 4 /Cu 3 P Composite: A Noble Metal‐free Bifunctional Electrocatalyst for Overall Water Splitting

Research paper thumbnail of Scalable Silver Oxo-Sulfide Catalyst for Electrochemical Water Splitting

ACS Applied Energy Materials, 2018

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