Journal Articles

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A computational study of the inclusion of β‑cyclodextrin and nicotinic acid: DFT, DFT‑D, NPA, NBO, QTAIM, and NCI‑RDG studies
(Journal of Molecular Modeling, 2020) Houdhaifa R. Belhouchet; Tahar Abbaz; Amel Bendjedou; Abdelkrim Gouasmia; Didier Villemin
Forming complexes with cyclodextrins can protect nicotinic acid (vitamin B3) from premature metabolism and enhance the solubility and stability of this drug. In this work, the formation of the inclusion complex of the neutral form of nicotinic acid and β-cyclodextrin was achieved. The complex is modeled using PM3, PM6-D4H3, and PM7, by considering two orientations of the guest: A and B, one is from wide to narrow rim, and the second is from narrow to the wide rim ,respectively. The global minima positions were re-optimized using three density function methods: MN-15, B3LYP, and PW6B95-D3 with polarized Pople basis set 6-31G(d) in gas and aqueous phase. Orientation A showed the minimum complexation energy where the carboxylic functional group of nicotinic acid is located on the primary hydroxyl rim of β-cyclodextrin and the pyridine ring is totally embedded in the cavity. To further our study on the nature of complexation and the interactions of this host–guest system, different calculations were done. The reactivity indices showed that orientation A is harder than B and more electrophilic; the charge transfer occurred from the host to the guest and was confirmed by the natural population analysis (NPA). The natural bond orbitals (NBO) reveal the delocalization of orbitals between the host and the guest, quantum theory of atoms in molecules (QTAIM) analysis, and non-covalent interaction (NCI) analysis based on a reduced density gradient (RDG) give a detailed description of the nature of interactions between the host and the guest such as the hydrogen bonding and van der Waals interaction, and confirmed the stability of the complex given by the orientation A.
Adsorption of Benzoic and Salicylic Acids Using Sodium and Intercalated Bentonite in Aqueous Solution
(American Scientific Publishers, 2016) Nadia Bensid; Yamina Berredjem; Zhour Hattab; Ridha Djellabi; Ouahida Khiereddine; FarhiHailaimia; Pierre Magri; Ahmed Boulmokh
The aim of this study was to apply a local betonite (Algeria) purified and intercalated with a surfactantnamely dodecyltrimethylammonium bromide (DTMAB) as an adsorbent to remove benzoic acid (BA) and salicylic (SA) which could be present in wastewaters. This intercalation process leads to improve the porous texture of materials that allows adsorbing efficiently organic compounds. The effect of various experimental parameters was investigated using a batch adsorption technique. The equilibrium adsorption data were well described by the Freundlich and Langmuir isotherms. The adsorption kinetics of both acids could be considered as pseudo-first order with internal diffusion.The capacity of DTMA–bentonite for Benzoic acid and Salicylic acid was found to be around 5 and 3.5 times respectively higher than that of Na–bentonite at 45 C. The thermodynamic study showed that the adsorption is not spontaneous and endothermic.
Adsorption of hexavalent chromium by crushed brick: effect of operating parameters and modeling study
(Desalination and Water Treatment, 2018-08-12) Assia Allaoui; Zhour Hattab; Radia Zerdoum; Yamina Berredjem; Ridha Djellabi; Wahiba Bessashia; Kamel Guerfi
The sorption of hexavalent chromium in aqueous solution using crushed Brick was carried out in batch mode. Powder of crushed Brick was prepared within a size between 500 and 800 μm. The crushed Brick was characterized by Fourier Transform infrared spectra (FTIR), BET surface area, X-ray fluorescence (XRF), Scanning Electron Microscopy (SEM),X-ray diffraction (XRD), Thermogravimetric analysis (TGA)and Zeta Potential. The results showed that the crushed Brick is a typical aluminosilicate mineral with SiO2/Al2O3 ratio of 3.65. On the other hand, it has a surface area of 20.11 m2 g−1 and exhibits a net microporosity with a medium pore width of 2.26 Å. Batch experiments were conducted to study the effect of different operating parameters such as contact time, pH, stirring speed, temperature, adsorbent dose and initial Cr(VI) concentration on the adsorption of Cr(VI) by crushed Brick. The results showed that the maximum adsorption capacity was 3.06 mg g−1 at pH 3, adsorbent dose of 20 g L−1 and initial Cr(VI) concentration of 10 mg L−1. Furthermore, the adsorption capacity increases in an acidic medium until it reaches pH 3 and afterwards it decreases due to the different speciation of hexavalent chromium with pH shifting. The equilibrium data were analyzed using three isotherm models such as Langmuir, Freundlich and Temkin by linear method. A satisfactory correlation coefficient value of the Langmuir isotherm demonstrates that the hexavalent chromium adsorption by crushed Brick is monolayer physical adsorption. The kinetic studies showed that the experimental data were best describing by pseudo- second-order model and intra-particle diffusion. It was observed from the values of thermodynamics parameters such as Gibbs free energy (ΔG°), enthalpy (ΔH°), and entropy (ΔS°), that the nature of adsorption is non-spontaneous, exothermic and reflects the decreased randomness at the solid/solution interface during the adsorption.
Adsorption of metribuzin herbicide on raw maghnite and acid-treated maghnite in aqueous solutions
(Desalination and Water Treatment, 2018-11-20) A. Bettayeb; B.A. Reguig; Y. Mouchaal; M.A. Yahiaoui; M.M. Chehimi; Y. Berredjem
This study aims to examine the potentialities of raw maghnite and acid-activated maghnite (raw- Mag and Mag-H+) for Metribuzin herbicide removal from aqueous solutions. Raw-Mag and Mag-H+ were characterized using various analytical techniques such as NMR, BET, FTIR, FRX, ATD and SEM. The effect of various operating parameters such as contact time, Metribuzin concentration, pH, and adsorbent dose were investigated using raw-Mag and H-Mag in batch adsorption system. The results showed that the maximum adsorption capacity was 70.1 and 55.6 mg/g for raw-Mag and Mag-H+ respectively at pH 2.5, initial Metribuzin concentration of 20 mg/L, adsorbent raw-M and Mag-H+ dosage of 0.5 and 0.2 g/L . The adsorption of Metribuzin herbicide was important in acidic medium for both adsorbents. Furthermore, the adsorption uptake was found to be increased with increase initial concentration. The equilibrium adsorption data were well described by Freundlich and Langmuir isotherms. The kinetic studies showed that the experimental data was best describing by pseudo second order model. The Mag-H+ had above 30% adsorption uptake capacity after four regeneration cycles, this was higher than Raw-Mag. It was observed from the values of thermo- dynamics parameters such us Gibbs free energy (∆G°), enthalpy (∆H°), and entropy (∆S°), that the nature of adsorption is spontaneous
Analysis, Design and Optimization of Multilayer Antenna Using Wave Concept Iterative Proces
(2017-09) Houda Amri
The wave concept iterative process is a procedure used for analyses a planar circuits This method consists in generating a recursive relationship between a wave source and reflected waves from the discontinuity plane which is divided into cells. A high computational speed has been achieved by using Fast Modal Transform (FMT). In this paper we study a patch antenna and multilayer circuits, to determine the electromagnetic characteristics of these structures.
Anti-corrosion performance of dehydroacetic acid thiosemicarbazone on XC38 carbon steel in an acidic medium
(2023-06-03) Boukerche Said
Antioxidant and Anticholinesterase Effects of Methanol Extract, And Consecutive Fractions of Peganum harmala L.
(Egyptian Journal of Chemistry, 2022-10-29) Amel NAIT MARZOUG; Fadila KHALDI; Adel AYARI; Lynda GALI; Abdelhak GHEID
Peganum harmala L. is a medicinal plant growing in the region of Sidi Fredj of Souk Ahras city (Northeastern of Algeria), whose native populations commonly used this plant to treat various health conditions and illnesses. Up to now, no previous study on the beneficial effects of P.harmala in the Souk Ahras region has been conducted. Therefore, the present study aimed to investigate the phenolic and flavonoid composition, as well as the antioxidant activities of the methanol extract and its three fractions: chloroform, ethyl acetate and butanol from seeds of P. harmala using eight different methods. The inhibitory effect of the extracts against acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) was also determined. The results showed that the ethyl acetate fraction contained the highest amounts of total phenolic and total flavonoid (237.23±1.06 μg GAE/mg and 82.58±0.03 μg QE/mg, respectively). Important antioxidant activity was exerted by the extracts, especially the ethyl acetate fraction, which was the most effective. However, a weak antioxidant activity in Ferrous ions chelation was observed for all extracts with >800 μg/mL. The samples showed also a strong inhibitory effect against AChE and BChE, the chloroform fraction was the most potent with IC50 values of 14.69±0.10 μg/mL against AChE and 7.36±0.77 μg/mL against BChE comparable to that of galantamine. Conclusively, the obtained results proved the beneficial antioxidant and anticholinesterase activities of P. harmala-derived bioactive molecules.
APPLICATION OF STATISTICAL METHODS TO THE STUDY OF THE SPATIO-TEMPORAL EVOLUTION OF THE PHYSICO-CHEMICAL PARAMETERS OF THE SURFACE WATERS OF THE CHERF WADI BASIN. ALGERIA
(Journal of Fundamental and Applied Sciences, 2021-04-27) M. A. Bellazi1, 1*, 2, 1,1; N. Zenati; N. Belahcene; Y. Berredjem; A. E. Gheid
The physico-chemical parameters of the surface waters of the Cherf wadi watershed experience considerable variations over space and time under the influence of natural or anthropogenic phenomena. The application of the Kruskal-Wallis test for the comparison of the physico-chemical parameters showed that there were very significant intersite differences for pH, electrical conductivity, bicarbonate, chloride and sodium; as well as significant differences between the dates for all the studied variables. The typology highlighted by principal component analysis and Hierarchical Classification Analysis is linked to the availability of mineral elements by the anthropic activities of variable intensity depending on the sites, is added a natural process of mineralization related to the contact water- rock and throughfall phenomena. Statistical processing also revealed two types of water. The first type represents waters with very strong mineralization with very high sodium and chloride values characterizing the waters of site 5. The second type is marked by strong mineralization with high contents of Calcium. It characterizes the sites receiving discharges coming respectively from certain agglomerations not connected to the wastewater system and from the treatment plant.
Assessment and Modeling of Adsorption Capacity of a Cationic Dye on the Natural Silica of El-Aouanajijel in North-Eastern Algeria.
(Annals of R.S.C.B., 2021-01-01) Guerfi Samia; Filali Naima; Deghfel Nadir; Berredjem Yamina; Hattab Zhour
The aim of this work is to study the adsorption of basic dye, methylene blue (MB), from an aqueous solution onto natural silica. The adsorption of MB by natural silica was carried out in static mode. Effects of parameters such as mass of adsorbant, initial dye concentration, stirring velocity, temperature, and pH on adsorption were investigated. In order to study the mechanism of the adsorption process, three kinetic models including pseudo-first order, pseudo-second order, and intra-particle diffusion were used. In addition, the linear Langmuir and Freundlich models were applied to describe equilibrium isotherms. The experimental results of adsorbent/adsorbate equilibrium show that the adsorption was well described by the kinetic model of pseudo-second order and by the Langmuir adsorption isotherm model. Optimal conditions for the adsorption of MB by natural silica were found to be: Va = 200 rpm, T = 25°C, and pH = 8.
Bio/KOH ratio effect on activated Biochar and their dye based wastewater depollution
(Journal of Analytical and Applied Pyrolysis, 2022) F. Abbaci, A. Nait-Merzoug, O. Guellati, A. Harat, J. El-Haskouri, J. Delhalle, Z. Mekhalif and M. Guerioune
Waste potatoes peels (WPP) were adopted as a Biomass in this investigation to produce highly porous activated Biochars. The carbonized-activation process was principally governed on double pyrolysis at 600 ◦C intercalated by intermediate thermal-chemical step for homogenous incorporation of KOH oxidation agent. The effect of CWPP/KOH precursors ratio and the second pyrolysis temperature were systematically carried out to study the activated Biochars physico-chemical properties (morphology, textural and chemical bands) using different techniques (XRD, FTIR, Raman, TGA/DTA, XPS, FESEM, EDX, CHNO/S, BET, Zeta potential). The obtained activated Biochars are in micro/nano-porous systems and have interesting SSA [580 – 2400 m2/g], pore volume [0.08 – 1.02 cm3/g] and average pores size < 4 nm depending to the activation conditions. Moreover, the second pyrolysis temperature has an effect on the carbon atoms structure reorganization which is proved through their high Raman and textural properties. To demonstrate the double activation process effectiveness and the resulting Biochars properties, we have studied their adsorption behavior to remove two kinds of dyes (cationic MB and anionic AZ). The obtained adsorption capacities have reached 1246 mg/g and 315 mg/g with an equilibrium contact time around [5–10 min] and [30–40 min] for MB and AZ dyes, respectively. These values have never been reported before, especially using the very low activated Biochar adsorbent quantity of 8 mg (at each initial pH and 100 mg/l concentration of each dye solution).
CNTs’ array growth using the floating catalyst-CVD method over different substrates and varying hydrogen supply
(Mater. Sci. Eng. B Solid-State Mater. Adv. Technol., 2018) O. Guellati, D. Bégin, F. Antoni, S. Moldovan, M. Guerioune, C. Pham-Huu, I. Janowska
In the present investigation, we point out the effect of the substrate crystallinity on the growth rate, efficiency, quality and the structure of synthesized aligned carbon nanotubes (CNTs). Three substrates are tested: amorphous alumina (Al2O3), silica (Si/SiO2), and crystalline alumina (sapphire). The growth is carried out using the floating catalyst-CVD process with the ferrocene-toluene solution as precursor. In addition, different concentrations of H2 in the gas supply are investigated. It is observed that the sapphire substrate provides a more homogenous forest of vertically oriented straight nanotubes with small diameter, despite initial horizontal alignment of the nanotubes. In the presence of H2, long arrays of high L/Φ aspect ratio nanotubes were obtained with a reduction of diameter and the number of walls. L/Φ aspect ratio in the case of 7% H2 is c.a. 3600 for sapphire substrate, 1500 and 2000 for alumina and silica amorphous substrate, respectively. When sapphire substrate is used, the increase of H2 to 15% provides the L/Φ aspect ratio of ∼14,000.
Comparative study of leachate treatment by coagulation-flocculation process using iron-based coagulants: A case study on Souk-Ahras city
(Applied Research in Water and Wastewater, 2021-06-15) Saliha Bouranene; Khaled Djeffal; Lotfi Zeghadnia; Abdalhak GHEID
The objective of this study was to evaluate the coagulation-flocculation process in the clarification of leachate from the landfill Technical Center of Souk-Ahras cityusing three coagulants based on iron: ferrous sulfate FeSO4.7H2O; ferrous chloride FeCl2.4H2O and ferric chloride FeCl3. The influence of some parameters namely pH leachate, dose and nature of coagulant and nature of flocculant was studied. The best treatment efficiency was obtained at 20 % of FeCl3 giving a turbidity of4.09 NTU with pH adjustment of the raw leachate at acidic pH (3.5 ± 0.2) before coagulant addition and at a basic pH (7.5 ± 0.2) after addition of coagulant. The iron valence and the nature of anion at which is linked, played a determinant role in the clarification of leachate. The treatments made with ferric chloride in the presence of a flocculant have proved that the starch was more efficient than lime giving abatement rates of 99 % for COD and 85 % for BOD5.
Density functional study of inclusion complex of Albendazole/cucurbit [7]uril: Structure, electronic properties, NBO, GIAO and TD-DFT analysis
(2015) Nora Merabet; Fatiha Madi; Leila Nouar; Sakina Haiahem; DjamelEddine Khatmi
In the present work, we investigate theoretically, the structure and electronic properties of inclusion complex of cucurbit [7]uril(Q[7]) with Albendazole (ABZ) using DFT calculations. Two modes of complexation were taken into consideration and the effect of solvent is explicitly taken into account. The results obtained with B3LYP/6-31G (d) method clearly indicate that the complexes formed are energetically favored with or without solvent. C1 complex (Albendazole entering the cavity of Q[7] by propyl and aromatic groups) is found more favored than C2 complex (Albendazole entering the cavity of Q[7] by carbamate group). 1H nuclear magnetic resonance (NMR) was calculated by the Gauge-Including Atomic Orbital method and compared with available experimental data. Finally, TD-DFT calculations of visible spectra were analyzed and discussed. The theoretical calculation agrees well with that obtained from experimental data.
Design guidelines of InGaN nanowire arrays for photovoltaic applications
(Islamic Azad University, 2021-07-24) Segmane; Sayad; Selatni; Nouiri
III-Nitride NanoWire array Solar Cells (NWSCs) combine the inherent properties of III-N semiconductors with waveguiding and confinement properties of nanowire arrays. In the present paper, some design guidelines of NWSCs made from Indium-Gallium-Nitride InGaN alloys are presented. Firstly, a detailed balance analysis was performed to show the importance of using InGaN materials to effectively convert the light to electricity, followed by an optical modelling to point out the advantages of using periodic nanowire arrays in designing solar cells. From the detailed balance analysis, it is expected that single junction solar cells made from In0.63Ga0.37N alloy result in the highest light-to-electricity conversion efficiency of 31%, and the Rigorous Coupled Wave Analysis RCWA simulations show that nanowire arrays made from InxGa1-xN fractions (x values) ranging between 50 and 77% alloys may achieve efficiencies of more than 33%, with a maximum efficiency of 37.7% for In0.67Ga0.33N NW array. Substrate choice, array density and filling material impacts on device performance were also studied.
Device Electromagnetic Characterization of GaAs MESFET Transistor
(2014) Houda Amri; Mourad Zaabat
In this paper, an electromagnetic study of MESFET transistor based on iterative method is presented. This method is generating the relationship between the incident and reflected waves from the planar circuits. The WCIP method is developed from the fast modal transform algorithm.
Effect of Peganum harmala L. extract supplemented ISP2 medium on growth and production of secondary metabolites of Streptomyces ayarius S115
(Elsevier, 2022-12-22) Amel Nait Marzoug; Adel Ayari; Fadila Khaldi; Ines Guehria; Abdelhak Gheid
Background: The present work aimed to investigate the effect of Peganum harmala L. in increasing the growth and production of secondary metabolites of Streptomyces ayarius strain S115 via ISP2 culture medium. Peganum harmala L. was dried and added to ISP2 medium. The morphological properties and the antibacterial activity of S. ayarius strain S115 seeded in ISP2 and the modified ISP2 media was evaluated by using the agar well diffusion method against five pathogenic bacteria, Escherichia coli Klebsiella pneumoniae, Pseudomonas aeruginosa, Serratia sp. and Methicillin-Resistant Staphylococcus aureus. The biomass of S. ayarius strain S115 in both media was determined. The kinetics of growth and production of secondary metabolites were studied for 7 d in different carbon sources. Results: Culture on the modified ISP2 showed an effective growth of S. ayarius strain S115 with changed color of the aerial mycelium from gray to white. The antibacterial activity revealed large inhibition zones against the tested pathogenic bacteria compared to those of the ISP2. The amount of S. ayarius strain S115 biomass was twice as high in the modified ISP2. The effect of different carbon sources on the growth and production of secondary metabolites of S. ayarius strain S115 revealed the highest biomass and biological activities through using glucose in the modified ISP2 on the 3rd day of culture. Of note, glycerol was found as the optimal carbon source in ISP2.
Elaboration of AlSi13 Casting Alloys modified using Directional Solidification Processing
(Rev. Sci. Technol., Synthèse, 2018) K. Ghedjati, E. Fleury, M. Hacini, O. Guellati & Y. Samih
In order to improve the mechanical properties of Al-Si13 alloys various treatments and procedures are recommended such as modification treatment of the molten alloy. In this work, the effects of the modification of the alloy composition owing to the addition of 1 wt.% and 2 wt.% modifier composed of 40 wt.% NaCl and 45 wt.% NaF and 15 wt.% KCl, combined with the application of unidirectional solidification by means of the Bridgman type were studied on the Al-Si13alloy. Microstructural analyses revealed a decrease in the interdendritic spacing(SDAS), in particular owing 2% of the modifier prepared with a reduced pulling traction. The dendrites were preferably oriented along the pulling velocity for fairly low pulling velocity (500 μm/s). These microstructural modifications enabled an increase of both the hardness (HB) values and the impact toughness.
Electrochemical measurements of 1D/2D/3DNi-Co bi-phase mesoporous nanohybrids synthesized using free-template hydrothermal method
(Electrochimica Acta, 2018) O. Guellati, A. Harat, D. Momodu, J. Dangbegnon, T. Romero, D. Begin, C. PhamHuu, N. Manyala, M. Guerioune
In this study, a facile and low cost free-template hydrothermal precipitation method was used to synthesize mesoporous Ni-Co based bimetallic carbonates (CO3)2- and/or hydroxides (OH) micro/nanostructures with different morphologies (1D, 2D and 3D) based on variant stoichiometric compositions. The effect of the growth temperature, synthesis time as well as the Ni/Co-precursors ratio on the physico-chemical properties and faradic electrochemical behavior of these products was investigated. The as-obtained bi-phase nanohybrids were characterized extensively structurally and morphologically. The textural analysis results confirmed the presence of mesoporous products with a BET-SSA ~50m2 g 1 (0.52 cm3 g 1 pore volume) for the 3D urchin-like structure and a BET-SSA ~ 47.14m2 g 1 (0.31 cm3 g 1 pore volume) was obtained for the 2D nanoflakes structure. The electrochemical measurements performed in a 6.0 MKOH aqueous electrolyte depicted excellent electrochemical performance ascribed to the optimized composition of Ni-Co LDH (or a-Ni(OH)2) with Co2(OH)3Cl and their unique hierarchical mesoporous nanoflake and urchin-like architectures. In addition, an exceptionally notable specific capacitances (capacities) of 1700 F g 1 (161mAh.g 1) and 1379 F g 1 (192 mAh.g 1) were obtained for both structures at 5mV s 1 scan rate (0.5 A g 1 gravimetric current density) respectively. These are much better than mono - hydroxides synthesized in same conditions with 351 F g 1 (90 mAh.g 1) for Ni and 216 F g 1 (21.5 mAh.g 1) for Co. A good cyclic stability of ~98% after 2000 charge-discharge cycles at 30 A g 1 was recorded depicting their potential as suitable materials for energy storage devices.
Electrochemical Measurements of Ni / Graphene based Nanohybrids for Electrochemical Energy Storage “ Supercapacitors”
(ENP Engineering Science Journal, 2023) I. Djebablia, O. Guellati, N. Habib, A. Harat, F. Djefaflia, A. Nait-Merzoug, I. Janowska and M. Guerioune
Given the issues related to the use of fossil fuels and water pollution, the development and the application of new smart nanomaterials for supercapacitors and biosensors has become a vital issue for human and industrial societies. Therefore, nanotechnology has given more interest to these areas via micro/nanosystems or nanohybrids characterized by interesting composition, significant porosity and texture at nanoscale. In this work, we have produced electroactive nanohybrids based on in-situ Ni mono-hydroxide few layers Graphene oxide "GO" using a simple and low cost hydrothermal technique under well-studied thermodynamic conditions (120 and 180 °C growth temperature), for performant supercapacitor devices. We have carried out the structural, morphological, textural and optical characterization of these products and consequently we have specified the relationship between their physico-chemical characteristics and their electrochemical properties for ulterior application. Thus, we have carried out various electrochemical measurements through CV tests and we have marked the important electrochemical properties of these Ni/Graphene nanohybrids in two NaOH electrolyte concentrations (0.1 and 1 M) in order to improve the performance of supercapacitors which have become a socio-economic issue with this nanotechnological development. Consequently, these obtained Ni/Graphene nanohybrids have shown a very interesting electrochemical results with specific capacities 1863 and 253 F.g-1 for the case of nanohybrid obtained at 6h/120°C in NaOH aqueous electrolyte with two different concentrations (1 and 0.1M), respectively. However, for a fixed electrolyte concentration of 1M NaOH, both nanohybrids obtained at 120 and 180°C gave specific capacity values around 1863 and 2981 F.g-1, respectively.
Electrochemical measurements of synthesized nanostructured β Ni(OH)2 using hydrothermal process and activated carbon based nanoelectroactive materials
(SN Applied Sciences, 2019) 1. S. Kettaf, O. Guellati, A. Harat, H. Kennaz, D. Momodu, J. Dangbegnon, N. Manyala, and M. Guerioune
In this investigation, nickel hydroxide Ni(OH)2 based nanostructured materials were synthesized by simple and low cost free template hydrothermal method at two different growth temperatures with and without SDS surfactant. The X-ray diffraction, Raman spectroscopy and field emission scanning electron microscopy analysis confirmed the formation of β-Ni(OH)2 pure brucite crystalline phase in spherical nanoparticle morphology with an average diameter ranging from 8 to 27 nm. In the second step, these nanospherical agglomerated hydroxide particles with activated carbon addition were performed as electroactive materials deposited on nickel foam current collector as working electrodes. The electrochemical tests in a three-electrode configuration using 6 MKOH electrolyte show that the best electroactive NPs (βbc-Ni(OH)2 and β-Ni(OH)2 obtained at optimized conditions, have a maximum specific capacitance (Cs) of 4697 F g−1 and 3431 F g−1 at 5 mV s−1 scan rate with a specific capacity (Qs) of 744 mAh g−1 and 618 mAh g−1 at 1 A g−1 current density with an Rs of about 0.24 and 0.28 Ω, respectively. At 30 A g−1 after 1700 cycles, the coulombic retention is around 99.06% (or capacity retention 109 mAh g−1), demonstrating remarkable cycling stability for Ni based hydroxide.