Solar photocatalytic glycerol reforming for hydrogen production over Ternary Cu/THS/graphene photocatalyst: Effect of Cu and graphene loading

Seadira, Tumelo; Masuku, Cornelius Mduduzi; Scurrell, Michael S.

doi:10.1016/j.renene.2020.04.020

Cited by 20 publications

(5 citation statements)

References 80 publications

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“…In the case of solvothermal method where organic solvents are used instead of water as the reaction medium, the properties of organic solvents (density, viscosity, and polarity) would enhance the dissolution, dispersion, and reaction activity of reactants, which promotes the crystallization of products at lower temperatures relative to water solvent and thereby enriches the variety of products. 36,37 For instance, Ni et al reported a Ni@C catalyst obtained by a facile two-step solution route with a honeycomb-like composite nanostructure and tailored size distribution. 38 First, Ni nanospheres with uniform particle size (100 nm) and morphology were obtained via a solvothermal route using N,N-dimethylformamide (DMF) and NaOH aqueous solution.…”

Section: Hydrothermal and Solvothermal Methodsmentioning

confidence: 99%

“…However, the hydrothermal method is normally used to prepare oxides and sulfides. In the case of solvothermal method where organic solvents are used instead of water as the reaction medium, the properties of organic solvents (density, viscosity, and polarity) would enhance the dissolution, dispersion, and reaction activity of reactants, which promotes the crystallization of products at lower temperatures relative to water solvent and thereby enriches the variety of products. , …”

Section: Synthetic Schemes For Heterogeneous Non-noble Metal Catalystsmentioning

confidence: 99%

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Recent Advances on Heterogeneous Non-noble Metal Catalysts toward Selective Hydrogenation Reactions

2023

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Selective hydrogenation reactions provide a pivotal and promising strategy for upgrading substances with unsaturated functional groups, in which supported non-noble metal catalysts play a crucial role in determining catalytic performance toward desirable products. By means of a precipitation method, hydrothermal and solvothermal methods, sol–gel synthesis as well as ion exchange method, various kinds of supported catalysts with high efficiency have been reasonably designed and developed. The detailed investigations by virtue of comprehensive studies demonstrated that in addition to the inherent properties of metal elements, the nanosized effect, the metal-alloy effect, and the metal–support interaction impose significant influences on the resulting catalytic behavior. Moreover, we discuss the catalytic applications of heterogeneous non-noble metal catalysts with focus on the catalytic hydrogenation of unsaturated aldehydes/ketones, alkynes and alkadienes, and functionalized nitroaromatic hydrocarbons. In this review, on the basis of achievements in the representative investigations, suggestions and prospects for the further progresses in the development of heterogeneous non-noble metal catalysts toward selective hydrogenation reactions have been put forward.

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Section: Hydrothermal and Solvothermal Methodsmentioning

confidence: 99%

Section: Synthetic Schemes For Heterogeneous Non-noble Metal Catalystsmentioning

confidence: 99%

Recent Advances on Heterogeneous Non-noble Metal Catalysts toward Selective Hydrogenation Reactions

2023

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“…Some investigations on the glycerol conversion have been also performed on the preparation of TiO 2 in different shapes such as nanotube, ,, nanorod, ,, hollow sphere (THS), , and nanosheets . Titania nanotubes can be prepared by hydrothermal treatment of commercial P25 or anatase TiO 2 . ,, To do so, TiO 2 is first converted to Na 2 Ti 3 O 7 nanosheets, and after its transformation to a H 2 Ti 3 O 7 nanotube, a TiO 2 nanotube was obtained by calcination at 350 °C.…”

Section: Photocatalyst Development For Glycerol Valorizationmentioning

confidence: 99%

“…It was reported that only 0.05 wt % Pt on TiO 2 as a cocatalyst can increase the rate of glycerol transformation into hydrogen around 370 times . Although Pt is the most common cocatalyst for hydrogen production from glycerol, ,,,,,,,− ,− ,,,,,− other metals like Cu, ,,,,,,,,,,,,, Au, ,,,,,, Pd, ,,,,, Ni, ,,,,, Co, ,, Ag, ,, Mn, Ru, Rh, Bi, , Cr, , and W have also been employed as cocatalysts to enhance the TiO 2 photocatalytic activity.…”

Section: Photocatalyst Development For Glycerol Valorizationmentioning

confidence: 99%

“…It shows that P25 has better activity than these homemade photocatalysts in hydrogen generation from glycerol. Some investigations on the glycerol conversion have been also performed on the preparation of TiO 2 in different shapes such as nanotube, 85,91,95 nanorod, 84,85,104 hollow sphere (THS), 96,117 and nanosheets. 90 Titania nanotubes can be prepared by hydrothermal treatment of commercial P25 or anatase TiO 2 .…”

Section: Photocatalyst Development For Glycerolmentioning

confidence: 99%

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Current Developments and Future Trends in Photocatalytic Glycerol Valorization: Photocatalyst Development

Estahbanati

Feilizadeh

Attar

et al. 2020

Ind. Eng. Chem. Res.

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Glycerol is a significant byproduct of biomass conversion into biodiesel, and numerous studies have been focused on its valorization technologies in recent years. Photocatalytic glycerol valorization is a promising technology to convert solar energy into chemical energy by producing hydrogen and value-added liquid products. This technology is desirable from the point of view of both green chemistry and sustainable development since it can operate at ambient temperature and atmospheric pressure by using renewable solar energy. The key element for a successful photocatalytic glycerol valorization process is the development of highly active and stable photocatalysts. In this context, the present review deals with novel techniques to improve photocatalysts’ activity. It reviews the main characteristics, preparation methods, advantages, and drawbacks as well as the performance of different TiO2-based and non-TiO2-based photocatalysts for glycerol conversion. Also, an analysis is presented on the most effective approaches for increasing the photocatalytic activity, including cocatalyst deposition, doping with metallic and nonmetallic ions, development of carbonaceous composites, and formation of heterojunctions. The review also offers the readers ongoing challenges and opportunities for research on photocatalyst development to selectively convert glycerol into hydrogen and value-added liquid products.

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Metallic Copper‐Containing Composite Photocatalysts: Fundamental, Materials Design, and Photoredox Applications

et al. 2021

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The preparation strategies of copper-based composites mainly have two forms: One is depositing metallic copper on or coupling the copper with the substrate materials with different phases to form two-phase or multiphase composites; the other is growing other materials on copper surface to obtain the composites with two or more phases. Therefore, the first synthesis strategy mainly depends on the formation method of metallic

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Solar photocatalytic glycerol reforming for hydrogen production over Ternary Cu/THS/graphene photocatalyst: Effect of Cu and graphene loading

Cited by 20 publications

References 80 publications

Recent Advances on Heterogeneous Non-noble Metal Catalysts toward Selective Hydrogenation Reactions

Recent Advances on Heterogeneous Non-noble Metal Catalysts toward Selective Hydrogenation Reactions

Current Developments and Future Trends in Photocatalytic Glycerol Valorization: Photocatalyst Development

Metallic Copper‐Containing Composite Photocatalysts: Fundamental, Materials Design, and Photoredox Applications

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