Kinetic Interaction of Hexan Conversion and Oxidation on the Surface of an Al2O3 Nanocatalyzer at Room  Temperature under the Effect of Gamma Radiation

Mahmudov, Hokman; Suleymanov, Telman; Sabzaliyeva, Zumrud; Imanova, Gunel; Akhundzada, Haji Vahid; Azizova, Kamala; Hasanova, S. A.; Hasanov, Sadig

doi:10.1155/2021/9493765

Cited by 10 publications

(8 citation statements)

References 9 publications

(8 reference statements)

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“…These findings agree with some articles present in the literature. 9,12,15 As for comparatively biggersized nano alumina particles, the electrons generated in bulk moved to the surface, which was taken up by the holes and available on the surface and recombined (reactions 2 and 3).…”

Section: Mechanism Of Water Splittingmentioning

confidence: 99%

“…The main issues facing scientists today are the emerging anion centers, the role of hole centers in radiolysis-catalytic transitions, and the mechanisms of these processes. 15 Metal nanoparticles are widely used in heterogeneous catalysis due to their high reactivity. One of their main features is the large number of atoms on their surface due to the small size of their particles.…”

Section: Introductionmentioning

confidence: 99%

“…This allows for the synthesis of novel structural molecules by generating an infinite number and variety of free radicals. By using radiation technology, as opposed to conventional techniques, petroleum's molecular structure can be altered 14‐16 . Therefore, study into oxidation processes on the gamma‐modified nano‐heterogeneous catalyst's surface is required.…”

Section: Introductionmentioning

confidence: 99%

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Hydrogen production on nano Al₂O₃ surface by water splitting using gamma radiation

Ali

Mahmudov

Imanova

et al. 2023

J of Chemical Tech & Biotech

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OBJECTIVES Due to changes in climate and the estimation of fossil fuel exploitation in the future, there is a great demand for green energy. Therefore, hydrogen production was studied by water splitting using Al2O3 nanoparticles as a radiation catalyst with gamma rays irradiation EXPERIMENTAL The effects of different particle sizes, surface area, amounts of radiation catalyst and the time of gamma rays irradiation were studied. The kinetics of hydrogen generated by the water decomposition of the water system with Al2O3 nanoparticles were also studied. It was determined that the hydrogen produced by water splitting with smaller‐sized nanoparticles was 1.4–1.6 times greater than the large‐sized catalysts. RESULTS AND DISCUSSION The best conditions were 5 nm particle size, 250 mm2/g surface area, 0.25 g amount and 10 h time (5.97 molecules/100 eV). The equivalent dispersal of radiation nanocatalyst (alumina) in water and greatly more sorption of water on the catalyst surface caused more effective radiolysis. The mechanism of water splitting and radiolysis was also established. CONCLUSION The reported method may be used in the future for hydrogen production on an industrial scale. © 2023 Society of Chemical Industry (SCI).

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Section: Mechanism Of Water Splittingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hydrogen production on nano Al₂O₃ surface by water splitting using gamma radiation

Ali

Mahmudov

Imanova

et al. 2023

J of Chemical Tech & Biotech

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“…Nano assistant materials have a made surface and extended distortion ness on the boundary of particles, which is of unimaginable noteworthiness in radiation-heterogeneous shapes with their back, as well as in the midst of the progression of significantly tricky locators of ionizing radiation. To alter physicochemical properties, materials based on the blends of nano-measured oxides are created [16][17][18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Generation During Thermal Processes of Water Decomposition on the Surface of Nano-ZrO2+3mol.%Y2O3

et al. 2023

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The study of physicochemical properties of nano-ZrO2+3mol.%Y2O3 was determined. The X-ray diffraction spectrum of the nano-ZrO2 and system nano-ZrO2+3 mol.%Y2O3 compound was drawn by the Ritveld method and the crystal structure was determined at different temperatures (T = 373, 473, 573, 673 K) and under normal conditions. The energy of the arrangement of H2 as a result of the decay of H2O, on the surface of nano-ZrO2+3mol.%Y2O3 was considered. Impacts of adsorption and desorption preparation of ZrO2+3mol.%Y2O3 nanoparticles were considered at diverse (T = 373, 473, 573, 673 K) temperatures. The thought of H2 in warm forms at nano-ZrO2+3mol.%Y2O3 framework expanded. This tells about hydrogen era by water part in close future. Nano-ZrO2 and system nano-ZrO2+3mol.%Y2O3 with the temperature range of T = 373, 473, 573, 673 K have been studied by SEM analysis. These results are promising of hydrogen generation by water splitting in near future. HIGHLIGHTS First innovative research article in this area Importance of the thermal in water splitting for hydrogen generation Design and optimization of water splitting for hydrogen generation Future of hydrogen generation at a large scale economically GRAPHICAL ABSTRACT

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“…[11] In the presence of adsorbed water molecules on the Al 2 O 3 surface, the processes of interaction with adsorbed molecules compete with the processes of recombination and localization of non-equilibrium charge carriers. As is known, the unit cell of γ-Al 2 O 3 contains a large number of unoccupied positions of cations, [12,13] which can serve as centers of bulk localization and recombination loss of holes, which can be one of the reasons for the small value of the energy transfer length.…”

Section: Introductionmentioning

confidence: 99%

A COMPARISON OF HYDROGEN PRODUCTION BY WATER SPLITTING ON THE SURFACE OF α‐, δ‐ AND γ‐Al₂O₃

et al. 2022

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Water splitting is becoming one of the most important processes for producing green fuel hydrogen. Among various materials, alumina provides the best surface for water splitting to generate green energy hydrogen. Therefore, radiationcatalytic and radiation-thermocatalytic activities of the polymorphic forms of Al 2 O 3 (α-, δ-, γ-) in the water decomposition process were studied at various temperatures. It is established that γ-Al 2 O 3 has relatively high radiation-catalytic properties in the process of water decomposition. The maximum yields of the radiation-chemical molecular hydrogen at 873 K for 30 hrs were 4.5, 5.8, and 7.0 N(H 2 ) × 10 À 18 molecules/g for α-, δand γ-Al 2 O 3 ; indicating the best performance of γ-Al 2 O 3 . The pattern of accumulation of localized states of non-equilibrium charge carriers in polymorphic forms of γ-Al 2 O 3 was determined. Furthermore, the proposed mechanisms of energy transfer and lengths of energy transfer in radiation-heterogeneous processes of water decomposition were determined. The developed method may be used to produce hydrogen fuel on a large scale.

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Kinetic Interaction of Hexan Conversion and Oxidation on the Surface of an Al2O3 Nanocatalyzer at Room Temperature under the Effect of Gamma Radiation

Cited by 10 publications

References 9 publications

Hydrogen production on nano Al₂O₃ surface by water splitting using gamma radiation

Hydrogen production on nano Al₂O₃ surface by water splitting using gamma radiation

Hydrogen Generation During Thermal Processes of Water Decomposition on the Surface of Nano-ZrO2+3mol.%Y2O3

A COMPARISON OF HYDROGEN PRODUCTION BY WATER SPLITTING ON THE SURFACE OF α‐, δ‐ AND γ‐Al₂O₃

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Kinetic Interaction of Hexan Conversion and Oxidation on the Surface of an Al2O3 Nanocatalyzer at Room Temperature under the Effect of Gamma Radiation

Cited by 10 publications

References 9 publications

Hydrogen production on nano Al2O3 surface by water splitting using gamma radiation

Hydrogen production on nano Al2O3 surface by water splitting using gamma radiation

Hydrogen Generation During Thermal Processes of Water Decomposition on the Surface of Nano-ZrO2+3mol.%Y2O3

A COMPARISON OF HYDROGEN PRODUCTION BY WATER SPLITTING ON THE SURFACE OF α‐, δ‐ AND γ‐Al2O3

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Hydrogen production on nano Al₂O₃ surface by water splitting using gamma radiation

Hydrogen production on nano Al₂O₃ surface by water splitting using gamma radiation

A COMPARISON OF HYDROGEN PRODUCTION BY WATER SPLITTING ON THE SURFACE OF α‐, δ‐ AND γ‐Al₂O₃