This review paper inclusively discusses the recent progress in theoretical studies of FA-based perovskite materials with a particular focus on stability and optoelectronic properties to look for ways to improve the performance of FA-based PSCs.

Among the aqueous electrolyte-based energy storage devices, ZIB was observed to be the most ideal one. Zn has better characteristic properties as an anode than other metallic materials (eg, Mg and Al), such as high electrical conductivity, easy processability, high compatibility/stability in water, non-flammability, low toxicity, comparatively lower price and abundance. Zn anode possesses a high theoretical capacity (820 mAh g⁻¹), suitable redox potential (−0.76 V vs standard hydrogen electrode [SHE]) in aqueous electrolyte, and relatively low polarizability compared with Mg and Al.

This work summarises MOF-based anode material for lithium ion batteries such as bi-metallic MOF, MOF-based composites, MOF-derived carbonaceous materials, and MOF-derived metal oxides. The initial charge/discharge capacities, current density, and stability of these materials have been studied for their performance evaluation for anode applications.

Electrophoretic deposition can be effectively used to manufacture highly tailored and functional electrodes for a range of electrochemical energy storage applications.

Conversion of different biowastes to materials in lithium-ion batteries.

The schematic illustration shows the preparation of g-C₃N₄/Ti₃C₂ as electrode materials for supercapacitor.

The charging coils are designed concerning resonant inductive coupling and the optimal values of the parameters are obtained by rain optimization.Then the range obtained by applying the optimization is evaluated in ANSYS MAXWELL and FEMM 4.1 software and the values obtained are evaluated in both spiral and rectangular coil of 2 dimensional and 3 dimensional wireless power transfer coils.

In this study, a comprehensive approach is presented to locating hydrogen production from wind energy using multicriteria decision-making (MCDM). To implement the proposed approach, a case study in Iran and Hormozgan province is used. Hormozgan province is in good condition in terms of wind potential and many industries in this province need energy and hydrogen.

The full-potential linearized augmented plane wave (FP-LAPW) method was employed in the framework of density functional theory (DFT) and semi-classical Boltzmann transport theory to compute the electronic, elastic, mechanical, thermal, and thermoelectric characteristics of PbSnO₃.

We used a quantum chemical approach to address the growing demand for competent photovoltaic materials, with excellent electronic structure, and optoelectronic properties, eight molecules X1-X8 were designed via π-spacer modification and investigated using DFT and TD-DFT computation. The newly designed molecules exhibited outstanding photovoltaic and optoelectronic properties.

This figure showed the (A) structure, (B) band structure of SbInO₃, (C) real dielectric function XInO₃ (X = As, Sb) compounds, and (D) figure of merit (zT) of SbInO₃ compound. We focused on the theoretical study of the XInO₃ (X = As, Sb) by employing the full-potential linearized augmented plane wave. Figure (A) shows the cubic structure of XInO₃ (X = As, Sb) having the space group Fm3m (225), and figure (B) demonstrates the band structure with indirect bandgap value (1.329 eV). Further, we computed the real dielectric function to examine the transition of materials and figure of merit (ZT) against chemical potential as shown in figures (C,D), respectively. Maximum transition and highest ZT values advocated these materials are applicable to use in energy harvesting applications.

In this study, a simple and accurate dual-axis elliptic solar tracker is designed, fabricated, and experimentally evaluated. The altitude and solar azimuth angles of the tracker are estimated based on the tracking of an elliptical path around the sun and compared with the measured values, eliminating other interfering effects, such as clouds. Furthermore, the tracker is used to evaluate the performance of a CPV system combined with a finned heat sink at a solar CR of 50 suns.

Schematics illustrating the facile synthesis of Cs₂SnI_6−xBr_x perovskite in a less-toxic methanol solvent, as well as the highest IV-parameters obtained when used as HTM in dye-sensitized solar cells.

A highly efficient photocatalytic system is designed via embedding surface-active Fe species into the basal plane of graphitic carbon nitride nanotubes, which can efficiently adsorb and activate N₂ molecules, and can drive fast charge transfer to realize highly efficient charge separation/transfer, thereby enhancing the nitrogen fixation activity.

1. The multi-reservoir echo state network (MESN) is established for battery state of charge (SOC) estimation.
2. The Fletcher-Reeves conjugate gradient (FRCG) algorithm is explored to estimate the output weights of the MESN.
3. An appropriate amount of Gaussian noise is added to the training data to prevent overfitting.
4. The proposed FRCG-MESN method is verified with different initial SOCs.

We applied sulfur-enriched crystalline Mo₃S₁₃ clusters without any carbon supports as an anode material for Li-ion batteries to increase the number of active sites and energy densities. we confirmed that employing poly(acrylic acid) and isopropyl alcohol as a binder and solvent, respectively, was appropriate for retaining the Mo₃S₁₃ cluster crystallinity during electrode preparation, resulting in the enhanced cycling stability.

Cyanobacteria can be found in a variety of bio-economy products like biofuels, cosmetics and pharmaceuticals. The marine cyanobacterium Synechococcus elongatus BDU 10144 was shown for the first time to be a quintessential feedstock for co-production of bioethanol and high-value exopolysaccarides for sustainable biorefinery.

The Mn₂V₂O₇ spiked ball structure (MVO SB) catalyst material is synthesized. The MVO SB material is used as a cathode for Zn-air batteries for the first time. The MVO SB material reveals a direct 4e⁻ transfer pathway and the assembled Zn-air battery with MVO SB material exhibits excellent cycling stability.

This study aims at elevating the anode conductivity of ceria-zirconia based anode of micro-tubular solid oxide fuel cell by fabricating metallic copper layer on top of the anode using modified sol-gel method. The copper layer elevated the conductivity by 10¹⁰ times, reduced ohmic and charge transfer resistance but also reduced the gas permeability by 10 times in the anode. This blocking can be resolved by increasing the amount of micron sized pore by using pore former during anode fabrication.

Nitrogen functionalized carbon was developed from ethylenediamine with high surface area of 1202.8 m² g⁻¹. Dependency of structural parameters on change in amount of activating reagent was investigated. Excellent supercapacitor performance with high capacitance of 353 F g⁻¹ with 1 A g⁻¹ of current. High selective adsorption of CO₂ over N₂ and CH₄ was achieved.

Using platinum-based alloy nanocatalysts with other transition metals has the advantages of enhancing the oxygen reduction reaction (ORR) activity and reducing the platinum usage. However, there are many challenges to using nanocatalysts, including their instability, which hinder their practical application. In this study, we employed a strategy to improve the intrinsic instability of a nanocatalyst by encapsulating a dopamine-derived carbon layer on the surfaces of nanoparticles.

In this work, the integrated system of pressurized solid oxide fuel cell (SOFC) and supercritical water reforming of glycerol was proposed. The syngas from the reforming process has high temperature and pressure and thus, it can be used as fuel for the SOFC. The performance of an integrated system was determined through the Aspen Plus simulator in which the electrochemical equations were also included.

A comparative analysis of the physicochemical, optical, and electrical conductivity properties of TiO₂ integrated with nitrogen- or boron-doped rGO in dye-sensitised solar cells (DSSCs) was investigated using eosin B or Sudan II as photo-harvesting dyes. The integration of heteroatoms significantly enhanced the photon absorption, exciton generation, charge carrier separation and reduced the recombination effect, resulting in the efficient transfer of photogenerated electrons. Also, the low content of TiO₂ rendered better optoelectronic properties, leading to the fabrication of DSSCs with a relatively higher power conversion efficiency.

The first-principles calculations combined with self-consistent phonon theory, compressive sensing techniques are used, and the lattice thermal conductivity with the inclusion of cubic and quartic anharmonicity has been studied, which is fundamental to capture the reasonable temperature dependence of the lattice thermal conductivity.

This article identifies, evaluates, and discusses the Critical Success Factors that impact the implementation and management of cloud-based energy management environments – Energy Cloud. Energy Cloud is driven by the distributed generation of renewable energies, electric vehicles, and energy storage technologies, thus providing flexibility and autonomy to users. The factors are hierarchically structured following the corresponding business area and, with the MAUT method, they are evaluated, generating relevant management insights regarding the development and implementation of these energy management environments.

Methanol electro-oxidation on Pt/Au and Pt/Au-Co catalysts.

The transesterification of waste oils to biodiesel was crried out in the presence and absence of ultrasouns.

The innovation of this work is an environmentally friendly synthesized calcium-strontium nanocatalyst with ultrasound at low temperature.

The highest conversion of biodiesel was 99.2% under optimal reaction conditions

Lead-free double perovskite Cs2AgBiBr6 material for solar cell applications.

Hydrogen peroxide has been an attractive oxidant in direct liquid fuel cells. However, hydrogen peroxide reduction reaction heavily relies on noble metal-based electrocatalysts. In this work, a carbon mat decorated with FeCoNi alloy nanoparticles of ultralow loading, i.e., 0.146 mg cm⁻², for hydrogen peroxide reduction is designed, fabricated, and applied as a free-standing cathode in a passive alkaline-acid direct ethylene glycol fuel cell.

This research is particularly important from an academic point view as it helps in understanding the basic nanoscale processes that enhance the functional properties of composite materials. From this point of view, polymer nanocomposite films of PVP/PEO polymer filled with MoO₃ nanoplates were prepared. The structural, optical, dielectric, and electrical properties of the PVP/PEO polymer were enhanced after adding MoO₃ nanoplates. The results indicated the possibility of applying the produced films in electrochemical applications, especially in energy storage devices.

A cellulose hydrogel/GO/PANi composite was synthesized using the polymerization method. Cellulose hydrogel is crucial for the functioning of the composite. Cellulose hydrogel composite exhibits superior performances.

Two ways exist to enhance ZT values of CoFeTiGe and CoFeCrGe to 0.4032 and 0.64149, respectively: A charge carrier concentration of 17.392 × 10²¹ cm⁻³ for CoFeTiGe and 59.503 × 10²¹ cm⁻³ for CoFeCrGe is obtained. The second similar result is obtained by raising the chemical potential of CoFeTiGe and CoFeCrGe by 0.068 and 0.980 Ryd, respectively. To our knowledge, CoFeCrGe and CoFeTiGe exhibit exceptional spintronic and thermoelectric properties.

Photo-generation of the current in a photo-galvanic cell in terms of the standard reduction potential and energy levels.

The graphitic carbon nitride addition in MOF composites ehances durability and tolerance for carbon monoxide in alkaline media. Cu/Ni MOF@5 wt% g-C₃N₄ composite demonstartes higher electrochemical activity.

Using charging data, eight sets of charging features were analyzed and extracted as indirect aging features of Li-ion batteries. The capacity degradation process of Li-ion battery is simulated using a fused kernel function formed by linear combination of three kernel functions, and the improved GWO algorithm is used to optimize the combination coefficients to obtain an improved multi-kernel RVM model to predict the RUL of Li-ion battery.

In this work, carbon-embedded transition multimetal oxide nanospheres were synthesized to serve as an effective energy storage material for hybrid cells.

Rapid and deposition-free preheating of lithium--ion cell with square wave current

To enhanced the applicability of preheating method, the strategies of replacing negative electrode impedance with full cell impedance and of substituting sinusoidal current using square wave current is proposed. Based on the strategies, a square wave preheating method is proposed and quantitatively proved capable of heating up the cell more safely and more efficiently.

Hydrogen, called the energy source of the future, is a superb energy carrier. Electrolysis of water is the only method in the production of hydrogen classified with the green category. However, although the cost of hydrogen production by electrolysis has decreased considerably in recent years, it still has not reached reasonable levels.

The evaluation of the reactivity of the radicals involved in the oxidation/reduction process is noted to be the most simple and effective method to explain the experimental results of electrolyte materials. Therefore, radical reactivity is a key parameter in interpreting the experimental phenomena and efficiently determining the desired materials in interphase formation. This work makes a significant contribution to the literature by providing relevant findings that elucidate the materials that contribute to CEI and SEI formation, which has limited reports.

Flexible composite film based on N-doped porous nanocarbon and PEDOT:PSS conducting polymer for supercapacitor electrode is demonstrated. N-doped porous nanocarbon derived from porous ZIF-8 crystals provides high surface area with hierarchical porosity, while PEDOT:PSS provides additional active sites and serves as a conducting binder to form a robust film, resulting in high-performance flexible supercapacitor electrode.

The solar radiation, MPCS mass fraction, latent heat, inlet flow rate, and inlet temperature were 500 W/m², 5.90%, 88 kJ/kg, 0.01 m/s and 289 K, respectively. The temperature of the MPCS in the four risers gradually increased from the inlet to the outlet, and the maximum temperature rise was 12 K. The pressure gradually decreased from the inlet to the outlet, and the pressure in tube 1 was about 0.30 Pa greater than that in tube 4.

Carbon nano-onions (CNOs) synthesized by a single-step flame soot collection method, subsequently calcined at 600°C in an inert environment (CNO-600), are used as electrode material for the hybrid ultracapacitors. The lead-carbon hybrid ultracapacitor fabricated using CNO-600 as anode material and PbO₂ as cathode delivers a specific capacitance of 515 F g⁻¹ at 1 A g⁻¹ in 4.5 M H₂SO₄ electrolyte in the voltage range of 2.3 and 0.6 V, demonstrate an excellent opportunity for the development of high-performance supercapacitors.

R_e represents the resistance contribution from the electrolyte, electrode, and the passive film between them. The symbol R_f represented by the semicircle at high frequency are due to the Li⁺ migration through the solid electrolyte interphase film. The symbol R_ct assigned to the charge-transfer resistance at the electrode/electrolyte interface, which is shown by a semicircle in mid-frequency region.

High-performance RGO fiber electrode is prepared by an efficient and inexpensive method, in which shaping and reducing processes of GO dispersion into RGO fiber are effectively condensed together. The resulted RGO fiber electrode exhibits excellent energy storage performance and flexibility. The capacitance can be maintained at 90.80% after 100 000 charge-discharge cycles and 98.94% after bending for 10 000 times, respectively.

Highly efficient and high conductive NASICON-type is used as cathode material for the cells to improve their performance and studied various exposed climatic conditions to understand the temperature effects on battery capability. Herein, various factors affecting that can influence overall battery performance are discussed and to make usage of our batteries in real-time appliances.

The converging tube can effectively improve the level of synergy of the flow field in the tube, which can enhance the heat transfer coefficient of the supercritical carbon dioxide under cooling conditions.

Design and feasibility analysis of hydrogen based renewable energy system.

xAg₂O-yPrO₂/γ-Al₂O₃ are studied for electrochemical OER and ORR. These are proved to be cost-effective and active bi-functional electrocatalysts towards ORR/water oxidation, intimating their potential as electrode material for future perspective of URFC/batteries.

A hybrid cogeneration energy system based on compressed air energy storage, high temperature thermal energy storage, and supercritical CO₂ Brayton cycle is proposed. The thermodynamic analysis reveals that the proposed system can achieve a round trip efficiency of 59.50%, an energy storage density of 5.55 kWh/m³, and an overall exergy efficiency of 62.75%. At the same time, the hot water about 88°C can be supplied.

A reverse layered lateral series cooling scheme with U/Z type flow pattern is proposed for the forced-air cooling BTMS. It provides good cooling performance with uniform temperature distribution. The response surface methodology and the Cuckoo search algorithm are employed to optimize the proposed cooling scheme. The maximum temperature of the optimized design is reduced by 0.97°C and the temperature difference is reduced by up to 36.4% with the pressure drop increased merely by 1.28 Pa.

The Ni-doped WS₂/NF NRs multiple structeral design array fabricated by two-step microwave-hydrothermal method for high-performance asymmetric supercapacitors with high capacity with excellent stability.

Adding composite material PbSO₄/Pb@CB (PPC) or PbSO₄/Pb@MC (PMC) into negative material prepared from recovered lead oxide powder greatly improves HRPSoC cycle life of lead acid batteries, due to the composite material having a multistage porous/mesoporous structure to provide a reaction site of Pb deposition and to increase the electrochemical active area of lead electrode. The proposed research provides a promising strategy for directly usingrecycled lead powder for lead-acid batteries which greatly benefit to lead resource recycling.

To significantly improve the rate capability of Ni-HCF-based electrode materials, a novel composite (Ni/Mn-HCF) was directly synthesized on carbon cloth (CC) with a facile two-step method. First, elemental Ni was electrodeposited on CC with a galvanostatic method. Then, Ni film-coated CC was heated in aqueous solution containing KMnO₄ and K₃Fe(CN)₆. Elemental Ni was oxidized to Ni²⁺ by MnO₄⁻ and [Fe(CN)₆]³⁻, which were reduced to Mn²⁺ and [Fe(CN)₆]²⁻, respectively. The produced Ni²⁺ and Mn²⁺ immediately reacted with [Fe(CN)₆]³⁻ and [Fe(CN)₆]⁴⁻ to form Ni₃[Fe(CN)₆]₂ (Ni-HCF) and Mn₂[Fe(CN)₆] (Mn-HCF), respectively. Ni/Mn-HCF on CC demonstrates a unique morphology with nanorods uniformly distributed on microcubes. Such unique morphology endows Ni-HCF/Mn-HCF enormous surface to facilitate rapid charge/ion transportation on the electrode/electrolyte interface and provide more active sites for ions adsorption/exchange. Ni/Mn-HCF demonstrated enhanced electrochemical performances such as high capacity, good rate performance, and long-term cycling stability.

This paper provides a new method for the removal of AP and the presence of AP is conducive to the decomposition of benzene series. This study shows DBD plasma provides a good contribution to the gas production especially at low temperature. And the addition of stream can improve the gas production apparently. Moreover, the hydrogen concentration is about 40% and gas can be used as syngas to achieve low carbon emission and for energy saving.

• The effects of the parameters of the manifold, cooling channel, and spoiler on the BTMS were studied.
• The angle of the distributed plenum was optimized in sections.
• Temperature drop and temperature uniformity increased by 10.57% and 92.58%, respectively.
• The CFD method was verified by experiment results.

Herein, calcium (Ca) and cobalt (Co) co-doped ZnO capsules (Ca-Co@ZnO) were fabricated using a facile and single-step hydrothermal process.The specific capacitance was 1020 F/g at a current density of 0.75 A/g, which was 3.2, 1.7, and 1.6 times higher than the pristine ZnO, Ca-ZnO, and Co-ZnO capsules, respectively. Ca-Co@ZnO showed more than 50% capacity retention at a higher current density and strong cycling stability up to 5000 cycles with only 8% capacity loss.

Schematic of the PV-ESS-building system using reversible fuel cells and Li-ion batteries.

Facile one-step electrochemical polymerization of a novel graphitic oxide/polypyrrole/2-acrylamido-2-methyl-1-propanesulfonic acid composite on carbon fabric was developed for supercapacitor applications. In the aqueous electrolyte, the operating voltage reached 2.2 V, resulting in high-energy density, power efficiency, and long cyclic capacity.

• Zn-MOF based electrode material for high performance supercapattery devices.
• High specific capacity of 172 C/g and high specific capacitance of 107.5 F/g.
• Supercapattery formed by coupling activated carbon with battery grade electron (Zn-MOF//AC).
• High energy density of 38.05 Wh/kg in parallel to a high-power density of 240 W/kg.

The CALculation of PHAse Diagrams method, and experimental validations were combined to design potential phase change materials. The designed phase change material exhibited a lower melting activation energy and a higher enthalpy change than that of the commercial HITEC salt. The designed phase change material exhibited a good thermal stability with the container material of a 316 stainless steel at 150 and 300°C for up to one month.

Developing a holistic structure for optimal operation of hydrogen-based hubs and distribution grids. Preserving the adequacy of distribution grids by enhancing the self-sufficiency level. Enhancing the flexibility level of distribution grids by mitigating techno-economic-environmental risks.

• Pt₃/SiO₂ and Re-doped Pt₃/SiO₂ catalysts were prepared by wetness impregnation method.
• Pt₃-Re₁/SiO₂ showed the highest catalytic performance for the H₂ production via the APR of xylose.
• Oxidation states of Re and Pt atoms could be tuned by varying the annealing conditions.
• Lower oxidation state of Re atom is responsible for the enhanced H₂ selectivity.

• The nonlinear kinetic equation of mineral reaction is introduced to study CO₂ geological sequestration by geochemical modeling.
• Reaction kinetics equations of different reactions have no obvious effect on the total CO₂ storage but significantly impact mineral storage.
• The use of linear reaction kinetics equations may greatly overestimate reaction rates and theoretical mineral sequestration capacity.

Fallen leaves were demonstrated as efficient separators in supercapacitors with dense mesoporous carbon electrodes, achieving a high areal capacitance of 1.94 F/cm². Among four leaves, Quercus rubra (QR) leaf exhibited the best electrochemical performance as a separator for supercapacitors, which is even comparable to the commercial glass fiber separator.

The samples form overlapping nano needle structure, which increases the specific surface area and active center, so that the electrode material has high specific capacity at high current density.

The performance of the propylene carbonate and tetrabutylammonium iodide based deep eutectic solvent (PC/TBAI-DES) as a novel and efficient electrolyte solvent for dye-sensitized solar cells (DSSCs) is evaluated for the first time. Under the optimum conditions, the DSSCs based on this electrolyte attained an excellent performance (η = 10.04%, J_sc = 21.94 mA cm², V_oc = 0.78 V, and FF = 0.58). Moreover, the interaction parameters between TBAI ion pair and PC molecule are determined through density functional theory.

A novel reed-leaves like aluminum-doped manganese oxide presetting sodium-ion (Na_xMn_yAl_zO₂) is constructed by a facile coprecipitation method. It can be used as active material for sodium-ion capacitor with 73.76 F g⁻¹ of specific discharge capacity at 100 mA g⁻¹ current density corresponding to 368.8 m² g⁻¹ electrochemical specific surface area. When combined with Na₃V₂(PO₄)₃ active materials it can bring about excellent electrochemical performances, which provide a new ideal for high-performance sodium-ion battery.