Preparation of inorganic lead-free CuO/Cs2SnCl6-KI perovskite for green hydrogen production from wastewater by using solar energy

Ali, Amira H.; Ahmed, Ashour M.; Abdel-Khaliek, Ahmed A.; Abd El Khalik, S.; Abass, Safaa M.; Shaban, Mohamed; Rabia, Mohamed

doi:10.1016/j.jphotochem.2023.115102

Cited by 8 publications

(3 citation statements)

References 54 publications

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“…This difference in behavior between UV and IR regions is evident in the J ph values, signifying the distinct nature and impact of light energy across different regions of the electromagnetic spectrum. The observed response under UV light highlights the efficacy of the Cu/Cu 2 O/CuO photoelectrode in harnessing high-energy photons for efficient electron transitions, thereby contributing to enhanced hydrogen generation [47].…”

Section: Photoelectrochemical Performancementioning

confidence: 89%

Some characteristics of Cu/Cu₂O/CuO nanostructure heterojunctions and their applications in hydrogen generation from seawater: effect of surface roughening

Alqahtani,

Mohamed,

Hadia

et al. 2024

Phys. Scr.

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Cu/Cu2O/CuO heterojunction were synthesized, using thermal oxidation under the flow of argon and oxygen gas mixture, as efficient photoelectrode for hydrogen generation. The Cu/Cu2O/CuO heterojunction were synthesized using un-roughed and roughed Cu foils. The resulting heterojunction samples were characterized using various techniques. The evaluated oxide layer (Cu2O/CuO) thicknesses for un-roughed and roughed samples are 4.2 and 8.5 m, respectively. XRD revealed that the oxide layer is a mix cubic Cu2O and monoclinic CuO crystalline phases with higher CuO ratio in the roughed sample. The surface morphology of the un-roughed sample is a porous surface that consisting of nanoflakes whereas surface morphology of the roughed sample is randomly oriented nanowires. The Cu/Cu2O/CuO nanostructured surface is superhydrophilic, with water contact angles of 11.12 and 0° for un-roughed and roughed samples, respectively. The roughed sample has higher absorbance over the entire studied wavelength range. The obtained values of the optical band gap for un-roughed and roughed samples are 2.48 and 2.39 eV, respectively. The photocurrent density of the roughed photoelectrode is much greater than that of un-roughed photoelectrode. The roughed photoelectrode has a photocurrent density of – 0.151 mA/cm2 at – 0.85 V and a photoconversion efficiency of 0.55 % when illuminating with 340 nm light. This work offers a promised Cu/Cu2O/CuO photoelectrode for hydrogen generation from seawater.

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Section: Photoelectrochemical Performancementioning

confidence: 89%

Some characteristics of Cu/Cu₂O/CuO nanostructure heterojunctions and their applications in hydrogen generation from seawater: effect of surface roughening

Alqahtani,

Mohamed,

Hadia

et al. 2024

Phys. Scr.

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“…The features of the perovskite materials have improved during the last ten years, speeding up this development . In the green solar industry − it is also creating a lot of buzz. Pinhole-free homogeneous perovskite material to fabricate more solar modules that are more efficient, convenient, and safer with regard to the environment is a new era that researchers are eyeing.…”

Section: Introductionmentioning

confidence: 99%

Effect of Low to High Pressure on the Structural, Mechanical, Electrical, and Optical Properties of Inorganic Material Ca₃AsBr₃: An Ab Initio Investigation

Ul Islam,

Das,

Khadka

et al. 2024

ACS Omega

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Inorganic metal halide solar cells made from perovskite stand out for having outstanding efficiency, cheap cost, and simple production processes and recently have generated attention as a potential rival in photovoltaic technology. Particularly, lead-free Ca 3 AsBr 3 inorganic materials have a lot of potential in the renewable industry due to their excellent qualities, including thermal, electric, optoelectronic, and elastic features. In this work, we thoroughly analyzed the stress-driven structural, mechanical, electrical, and optical properties of Ca 3 AsBr 3 utilizing first-principles theory. The unstressed planar Ca 3 AsBr 3 compound's bandgap results in 1.63 eV, confirming a direct bandgap. The bandgap within this compound could have changed by applying hydrostatic stress; consequently, a semiconductorto-metallic transition transpired at 50 GPa. Simulated X-ray diffraction further demonstrated that it maintained its initial cubic form, even after external disruption. Additionally, it has been shown that an increase in compressive stress causes a change of the absorption spectra and the dielectric function with a red shift of photon energy at the lower energy region. Because of the material's mechanical durability and increased degree of ductility, demonstrated by its stress-triggered mechanical characteristics, the Ca 3 AsBr 3 material may be suitable for solar energy applications. The mechanical and optoelectronic properties of Ca 3 AsBr 3 , which are pressure sensitive, could potentially be advantageous for future applications in optical devices and photovoltaic cell architecture.

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“…Shayan Sharafilaleh et al [36] proposed a novel combined cycle based on gas turbines for a fixed power output of 10 MW using biomass as a co-fuel with natural gas, integrated with hydrogen production via a proton-exchange membrane electrolyzer. Amira H. Ali et al [37] used novel lead-free inorganic CuO/Cs 2 SnCl 6 -KI perovskites as efficient photocatalysts for generating H2 from wastewater. Yi Ge et al [38] proposed a natural-gas-based combined cooling, heating, and power (CCHP) system with waste heat to hydrogen for energy storage.…”

Section: Introductionmentioning

confidence: 99%

Study on the Application of a Multi-Energy Complementary Distributed Energy System Integrating Waste Heat and Surplus Electricity for Hydrogen Production

Yu,

Yang,

Chen

et al. 2024

Sustainability

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To improve the recovery of waste heat and avoid the problem of abandoning wind and solar energy, a multi-energy complementary distributed energy system (MECDES) is proposed, integrating waste heat and surplus electricity for hydrogen storage. The system comprises a combined cooling, heating, and power (CCHP) system with a gas engine (GE), solar and wind power generation, and miniaturized natural gas hydrogen production equipment (MNGHPE). In this novel system, the GE’s waste heat is recycled as water vapor for hydrogen production in the waste heat boiler, while surplus electricity from renewable sources powers the MNGHPE. A mathematical model was developed to simulate hydrogen production in three building types: offices, hotels, and hospitals. Simulation results demonstrate the system’s ability to store waste heat and surplus electricity as hydrogen, thereby providing economic benefit, energy savings, and carbon reduction. Compared with traditional energy supply methods, the integrated system achieves maximum energy savings and carbon emission reduction in office buildings, with an annual primary energy reduction rate of 49.42–85.10% and an annual carbon emission reduction rate of 34.88–47.00%. The hydrogen production’s profit rate is approximately 70%. If the produced hydrogen is supplied to building through a hydrogen fuel cell, the primary energy reduction rate is further decreased by 2.86–3.04%, and the carbon emission reduction rate is further decreased by 12.67–14.26%. This research solves the problem of waste heat and surplus energy in MECDESs by the method of hydrogen storage and system integration. The economic benefits, energy savings, and carbon reduction effects of different building types and different energy allocation scenarios were compared, as well as the profitability of hydrogen production and the factors affecting it. This has a positive technical guidance role for the practical application of MECDESs.

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Preparation of inorganic lead-free CuO/Cs2SnCl6-KI perovskite for green hydrogen production from wastewater by using solar energy

Cited by 8 publications

References 54 publications

Some characteristics of Cu/Cu₂O/CuO nanostructure heterojunctions and their applications in hydrogen generation from seawater: effect of surface roughening

Some characteristics of Cu/Cu₂O/CuO nanostructure heterojunctions and their applications in hydrogen generation from seawater: effect of surface roughening

Effect of Low to High Pressure on the Structural, Mechanical, Electrical, and Optical Properties of Inorganic Material Ca₃AsBr₃: An Ab Initio Investigation

Study on the Application of a Multi-Energy Complementary Distributed Energy System Integrating Waste Heat and Surplus Electricity for Hydrogen Production

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Preparation of inorganic lead-free CuO/Cs2SnCl6-KI perovskite for green hydrogen production from wastewater by using solar energy

Cited by 8 publications

References 54 publications

Some characteristics of Cu/Cu2O/CuO nanostructure heterojunctions and their applications in hydrogen generation from seawater: effect of surface roughening

Some characteristics of Cu/Cu2O/CuO nanostructure heterojunctions and their applications in hydrogen generation from seawater: effect of surface roughening

Effect of Low to High Pressure on the Structural, Mechanical, Electrical, and Optical Properties of Inorganic Material Ca3AsBr3: An Ab Initio Investigation

Study on the Application of a Multi-Energy Complementary Distributed Energy System Integrating Waste Heat and Surplus Electricity for Hydrogen Production

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Product

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Some characteristics of Cu/Cu₂O/CuO nanostructure heterojunctions and their applications in hydrogen generation from seawater: effect of surface roughening

Some characteristics of Cu/Cu₂O/CuO nanostructure heterojunctions and their applications in hydrogen generation from seawater: effect of surface roughening

Effect of Low to High Pressure on the Structural, Mechanical, Electrical, and Optical Properties of Inorganic Material Ca₃AsBr₃: An Ab Initio Investigation