Abdelaziz Gassoumi's research while affiliated with King Khalid University and other places

... The layered two-dimension g-CN has attracted researchers due to higher nitrogen concentration, cost-effectiveness and excellent stability. [64,65]. ...

... Supercapacitors store energy better than batteries due to their high power density, quick charge-discharge rates, and extended lifespan [7]. Ferrites, transition metal oxides, are preferred supercapacitor electrode materials due to their availability, eco-friendliness, and versatility [8]. Ferrites, complex metal oxides comprised of iron oxide (Fe 2 O 3 ) and other elements, are perfect for magnetic recording, catalysis, and energy storage owing to their magnetic, electrical, and electrochemical characteristics [9]. ...

... Some work incorporates blockchain concepts for authentication purposes. Hagui et al. [21] provides an authentication scheme using the blockchain concept. The authentication protocol proposed by Zhang et al. [22] uses industrial Data Blockchain. ...

... For 2020, the share of RE in newly installed capacities was 4.88 times higher than that of conventional energy sources [1,2]. However, RE has uncertainty and variability caused by variable weather and soiling in power generation facilities [3]. A high percentage of RE is connected to the modern power system, which causes inconvenience to the operation and dispatch of the grid. ...

... The split coupled peaks at around 61.4 and 64.5 eV belonged to Ir 0 , those at 62.0 and 65.2 eV corresponded to Ir 3+ , while the other Furthermore, EIS plots were carried out to investigate the charge transfer process in the OER. As shown in Figure 2c, the R s value (the first intersection point of the data with the x-axis) indicated that the contact resistance and electrolyte resistance were the same with a value of about 12.5 ohm [40]. The resistance of the charge transfer (R ct ) at the catalyst interface for IrO x ·nH 2 O was about 15.0 ohm compared with 17.5 ohm for IrO 2 , revealing the fast charge transfer of IrO x ·nH 2 O during the OER process [9]. ...

... The obtained results are consistent with previous work done on halide perovskites Khan et al 2023;Rahman et al. 2023). The effective mass plays a pivotal role in evaluating the electrical and optical properties of materials, including factors such as conductivity, mobility, and energy band structures. ...

... The photovoltaic properties were also related to the band structure with an effective mass of the hole and electron. Molecular dynamics have been applied for predicting the reaction mechanism, crystal nucleation, formation, decomposition, and energies together with ion diffusion [32][33][34][35][36][37][38][39]. The purpose of this study is to focus on the characterization of band structure and molecular dynamics ...

... An optimal power density of 249 W m −2 was produced by an anion exchange membrane fuel cell (AEMFC) with 3D graphene as the anode and Ndoped carbon nanotubes as the cathode. The performance metrics for various graphenebased materials are compared in Table 2. Graphene-catalyzed Mg-based hydrogen storage alloys high energy density, high hydrogen storage capacity, fast hydrogen uptake and discharge kinetics, low thermodynamic stability [145] Boron-doped twin graphene improved hydrogen storage capacity (gravimetric density of 4.95 wt%) [146] Au@AuPd-rGO enhanced electrocatalytic activity and durability [150] LCZ oxide graphene power density of 2675 W m −2 [152] GO La 0.3 Sr 0.7 Fe 0.4 Ti 0.6 O 3-δ power density of 362 mWcm −2 , specific resistance of 0.02 × 10 −4 Ωm 2 [153] Pd 3 Co-D(100)-G pore volume of 0.84 × 10 −6 m 3 g −1 , surface area of 163.25 m 2 g −1 [147] GO Ni foam hydrogen storage capacity of 50.9 Ah kg −1 [148] ...

... This is also validated by lowest Tafel slope of 132.6 mV dec − 1 . Such an excellent O 2 generation potential indicates the predilection of the Sc 2 O 3 -ZnO nanostructures sheathed NF electrode towards the electro-oxidation [37,38]. Fig. 4 (b) shows the HER polarization curves for Sc 2 O 3 -ZnO nanostructures sheathed NF electrode in acidic media. ...

... The paint supplier is a hydraulic atomization device. The paint fluid is forced by a high-pressure paint pump to coerce the generation of paint droplets as the fluid passes through the cylindrical nozzle of the hydraulic atomizer [8,9]. Hydraulic atomization is applied due to its geometrical simplicity compared to mechanical atomization devices [10]. ...