Gamma rays mediated water splitting on nano-ZrO2 surface: Kinetics of molecular hydrogen formation

Ali, Imran; Imanova, Gunel; Гарибов, А. А.; Agayev, T.N.; Jabarov, S. H.; Almalki, Abdulraheem S. A.; Alsubaie, Abdullah

doi:10.1016/j.radphyschem.2021.109431

Cited by 35 publications

(18 citation statements)

References 14 publications

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“…Power of the absorbed dose has been determined by ferro sulfate and methane ways. In the concrete studied object the power of the absorbed dose has been calculated with use of a method of comparison of electronic density [10][11][12][13][14][15][16][17][18][19]. The products received by radiation and heterogeneous processes, such as H 2 , O 2 and H 2 O 2 have been determined by a chromatography method.…”

Section: Experimental Partmentioning

confidence: 99%

Investigation on Process of the Water Radiolysis in the Nano Si+H2O System Under the Influence of Gamma – Quanta

Imanova¹

2022

Journal of Physical Chemistry and Functional Materials

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The radiation-chemical yield of the molecular hydrogen received under the influence of gamma quanta (60Co, P=22Rad/s, T=300K) to liquid water of constant volume (V=5 ml) in the process of a radiolysis of water at change of weight (m=0.01; 0.02; 0.06 and 0.12 g) and sizes of silicon particle (d=50 nanometers) is defined. It has been revealed that at increase in mass of the silicon added to water the radiation-chemical yield of the molecular hydrogen received in the process of a water radiolysis grows in direct ratio (m0.02 g) the stationary area is observed. In the Si+H2O system the maximum radiation-chemical yield of molecular hydrogen is equal to 10,9 molecules / 100eV at the sizes of silicon particle d=50 nanometer respectively. The mechanism explaining the received results is offered.

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Section: Experimental Partmentioning

confidence: 99%

Investigation on Process of the Water Radiolysis in the Nano Si+H2O System Under the Influence of Gamma – Quanta

Imanova¹

2022

Journal of Physical Chemistry and Functional Materials

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“…During the water splitting process, water is split into O 2 and H 2 . For water splitting, several techniques, including the electrochemical (EC) and photoelectrochemical (PEC), − photocatalytic, ,− photobiological, , radiolysis, , and thermal decomposition, were developed. The byproduct of radiolysis is nuclear waste .…”

Section: Introductionmentioning

confidence: 99%

Advanced Catalysts for Photoelectrochemical Water Splitting

Marwat

Humayun

Afridi

et al. 2021

ACS Appl. Energy Mater.

112

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Photoelectrochemical (PEC) water splitting offers a sparkling and sustainable strategy for hydrogen generation, and significant research for enhancing the conversion efficiency of electrocatalysts is underway, since a huge number of publications have been reported in this field. Hence, it is urgent to write a comprehensive and updated review in order to highlight the latest progress in the design, fabrication, and modification of electrocatalysts for high-efficiency PEC water splitting. In this review, we describe the basic mechanism of PEC water splitting utilizing electrocatalysts in detail. Further, we highlighted the recent advancements in the design, fabrication, and modification of high-efficiency electrocatalysts for energy conversion. In addition, the catalysts' surface passivation, heterojunction constructions, defect engineering, and photovoltage and photocurrent enhancements are also highlighted.

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“…Among many methods, water splitting is considered the efficient way to get a good amount of hydrogen fuel. [1][2][3] The nano materials are gining importance in many areas of research including water splitting for hydrogen fuel (photo-catalyst). [4][5][6] Among many materials, alumina is being used as a good catalyst but all the properties of alumina for water splitting are not explored fully.…”

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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Gamma rays mediated water splitting on nano-ZrO2 surface: Kinetics of molecular hydrogen formation

Cited by 35 publications

References 14 publications

Investigation on Process of the Water Radiolysis in the Nano Si+H2O System Under the Influence of Gamma – Quanta

Investigation on Process of the Water Radiolysis in the Nano Si+H2O System Under the Influence of Gamma – Quanta

Advanced Catalysts for Photoelectrochemical Water Splitting

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

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Gamma rays mediated water splitting on nano-ZrO2 surface: Kinetics of molecular hydrogen formation

Cited by 35 publications

References 14 publications

Investigation on Process of the Water Radiolysis in the Nano Si+H2O System Under the Influence of Gamma – Quanta

Investigation on Process of the Water Radiolysis in the Nano Si+H2O System Under the Influence of Gamma – Quanta

Advanced Catalysts for Photoelectrochemical Water Splitting

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

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