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Articles de revues sur le sujet « Photoreforming »

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Auteur : Grafiati
Publié le 11 mars 2023
Mis à jour le 23 août 2023

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1

Rossetti, Ilenia. « Hydrogen Production by Photoreforming of Renewable Substrates ». ISRN Chemical Engineering 2012 (22 novembre 2012) : 1–21. http://dx.doi.org/10.5402/2012/964936.

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This paper focuses on the application of photocatalysis to hydrogen production from organic substrates. This process, usually called photoreforming, makes use of semiconductors to promote redox reactions, namely, the oxidation of organic molecules and the reduction of H+ to H2. This may be an interesting and fully sustainable way to produce this interesting fuel, provided that materials efficiency becomes sufficient and solar light can be effectively harvested. After a first introduction to the key features of the photoreforming process, the attention will be directed to the needs for materials development correlated to the existing knowledge on reaction mechanisms. Examples are then given on the photoreforming of alcohols, the most studied topic, especially in the case of methanol and carbohydrates. Finally, some examples of more complex but more interesting substrates, such as waste solutions, are proposed.
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2

Toe, Cui Ying, Constantine Tsounis, Jiajun Zhang, Hassan Masood, Denny Gunawan, Jason Scott et Rose Amal. « Advancing photoreforming of organics : highlights on photocatalyst and system designs for selective oxidation reactions ». Energy & ; Environmental Science 14, no 3 (2021) : 1140–75. http://dx.doi.org/10.1039/d0ee03116j.

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3

Balsamo, Stefano Andrea, Eleonora La Greca, Marta Calà Pizzapilo, Salvatore Sciré et Roberto Fiorenza. « CeO2-rGO Composites for Photocatalytic H2 Evolution by Glycerol Photoreforming ». Materials 16, no 2 (12 janvier 2023) : 747. http://dx.doi.org/10.3390/ma16020747.

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The interaction between CeO2-GO or CeO2-rGO and gold as co-catalysts were here investigated for solar H2 production by photoreforming of glycerol. The materials were prepared by a solar photoreduction/deposition method, where in addition to the activation of CeO2 the excited electrons were able to reduce the gold precursor to metallic gold and the GO into rGO. The presence of gold was fundamental to boost the H2 production, whereas the GO or the rGO extended the visible-light activity of cerium oxide (as confirmed by UV-DRS). Furthermore, the strong interaction between CeO2 and Au (verified by XPS and TEM) led to good stability of the CeO2-rGO-Au sample with the evolved H2 that increased during five consecutive runs of glycerol photoreforming. This catalytic behaviour was ascribed to the progressive reduction of GO into rGO, as shown by Raman measurements of the photocatalytic runs. The good charge carrier separation obtained with the CeO2-rGO-Au system allowed the simultaneous production of H2 and reduction of GO in the course of the photoreforming reaction. These peculiar features exhibited by these unconventional photocatalysts are promising to propose new solar-light-driven photocatalysts for green hydrogen production.
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4

Caravaca, A., H. Daly, M. Smith, A. Mills, S. Chansai et C. Hardacre. « Continuous flow gas phase photoreforming of methanol at elevated reaction temperatures sensitised by Pt/TiO2 ». Reaction Chemistry & ; Engineering 1, no 6 (2016) : 649–57. http://dx.doi.org/10.1039/c6re00140h.

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5

Pichler, Christian M., Taylor Uekert et Erwin Reisner. « Photoreforming of biomass in metal salt hydrate solutions ». Chemical Communications 56, no 43 (2020) : 5743–46. http://dx.doi.org/10.1039/d0cc01686a.

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6

Zhang, Ling, Wenzhong Wang, Shuwen Zeng, Yang Su et Hongchang Hao. « Enhanced H2 evolution from photocatalytic cellulose conversion based on graphitic carbon layers on TiO2/NiOx ». Green Chemistry 20, no 13 (2018) : 3008–13. http://dx.doi.org/10.1039/c8gc01398e.

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7

Zheng, Yeqin, Ping Fan, Rongjie Guo, Xiaohui Liu, Xiantai Zhou, Can Xue et Hongbing Ji. « Visible light driven reform of wasted plastics to generate green hydrogen over mesoporous ZnIn2S4 ». RSC Advances 13, no 19 (2023) : 12663–69. http://dx.doi.org/10.1039/d3ra02279j.

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8

Bahadori, Elnaz, Gianguido Ramis, Danny Zanardo, Federica Menegazzo, Michela Signoretto, Delia Gazzoli, Daniela Pietrogiacomi, Alessandro Di Michele et Ilenia Rossetti. « Photoreforming of Glucose over CuO/TiO2 ». Catalysts 10, no 5 (27 avril 2020) : 477. http://dx.doi.org/10.3390/catal10050477.

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Hydrogen production has been investigated through the photoreforming of glucose, as model molecule representative for biomass hydrolysis. Different copper- or nickel-loaded titania photocatalysts have been compared. The samples were prepared starting from three titania samples, prepared by precipitation and characterized by pure Anatase with high surface area, or prepared through flame synthesis, i.e., flame pyrolysis and the commercial P25, leading to mixed Rutile and Anatase phases with lower surface area. The metal was added in different loading up to 1 wt % following three procedures that induced different dispersion and reducibility to the catalyst. The highest activity among the bare semiconductors was exhibited by the commercial P25 titania, while the addition of 1 wt % CuO through precipitation with complexes led to the best hydrogen productivity, i.e., 9.7 mol H2/h kgcat. Finally, a basic economic analysis considering only the costs of the catalyst and testing was performed, suggesting CuO promoted samples as promising and almost feasible for this application.
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9

Bowker, Michael. « Photocatalytic Hydrogen Production and Oxygenate Photoreforming ». Catalysis Letters 142, no 8 (27 juillet 2012) : 923–29. http://dx.doi.org/10.1007/s10562-012-0875-4.

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10

Luo, Lan, Tingting Zhang, Xin Zhang, Rongping Yun, Yanjun Lin, Bing Zhang et Xu Xiang. « Enhanced Hydrogen Production from Ethanol Photoreforming by Site-Specific Deposition of Au on Cu2O/TiO2 p-n Junction ». Catalysts 10, no 5 (13 mai 2020) : 539. http://dx.doi.org/10.3390/catal10050539.

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Hydrogen production by photoreforming of biomass-derived ethanol is a renewable way of obtaining clean fuel. We developed a site-specific deposition strategy to construct supported Au catalysts by rationally constructing Ti3+ defects inTiO2 nanorods and Cu2O-TiO2 p-n junction across the interface of two components. The Au nanoparticles (~2.5 nm) were selectively anchored onto either TiO2 nanorods (Au@TiO2/Cu2O) or Cu2O nanocubes (Au@Cu2O/TiO2) or both TiO2 and Cu2O (Au@TiO2/Cu2O@Au) with the same Au loading. The electronic structure of supported Au species was changed by forming Au@TiO2 interface due to the adjacent Ti3+ defects and the associated oxygen vacancies while unchanged in Au@Cu2O/TiO2 catalyst. The p-n junction of TiO2/Cu2O promoted charge separation and transfer across the junction. During ethanol photoreforming, Au@TiO2/Cu2O catalyst possessing both the Au@TiO2 interface and the p-n junction showed the highest H2 production rate of 8548 μmol gcat−1 h−1 under simulated solar light, apparently superior to both Au@TiO2 and Au@Cu2O/TiO2 catalyst. The acetaldehyde was produced in liquid phase at an almost stoichiometric rate, and C−C cleavage of ethanol molecules to form CH4 or CO2 was greatly inhibited. Extensive spectroscopic results support the claim that Au adjacent to surface Ti3+ defects could be active sites for H2 production and p-n junction of TiO2/Cu2O facilitates photo-generated charge transfer and further dehydrogenation of ethanol to acetaldehyde during the photoreforming.
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11

Uddin, Md T., Y. Nicolas, C. Olivier, W. Jaegermann, N. Rockstroh, H. Junge et T. Toupance. « Band alignment investigations of heterostructure NiO/TiO2 nanomaterials used as efficient heterojunction earth-abundant metal oxide photocatalysts for hydrogen production ». Physical Chemistry Chemical Physics 19, no 29 (2017) : 19279–88. http://dx.doi.org/10.1039/c7cp01300k.

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Earth-abundant NiO/TiO2 heterostructures lead to enhanced H2 production by methanol photoreforming due to favorable band bending at the interface of the NiO/anatase TiO2 p–n heterojunction.
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12

Rossetti, Ilenia, Elnaz Bahadori, Alberto Villa, Laura Prati et Gianguido Ramis. « Hydrogen Production by Photoreforming of Organic Compounds ». Journal of Technology Innovations in Renewable Energy 7 (29 novembre 2018) : 55–59. http://dx.doi.org/10.6000/1929-6002.2018.07.07.

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13

Venzlaff, Julian, et Claudia Bohrmann-Linde. « Photoreforming of Biomass - Producing Hydrogen from Sugar ». World Journal of Chemical Education 9, no 4 (29 novembre 2021) : 130–35. http://dx.doi.org/10.12691/wjce-9-4-5.

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14

Segovia-Guzmán, Miguel O., Manuel Román-Aguirre, José Y. Verde-Gomez, Virginia H. Collins-Martínez, Gerardo Zaragoza-Galán et Víctor H. Ramos-Sánchez. « Green Cu2O/TiO2 heterojunction for glycerol photoreforming ». Catalysis Today 349 (juin 2020) : 88–97. http://dx.doi.org/10.1016/j.cattod.2018.05.031.

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15

Marin, Graciane, Muhammad I. Qadir, Jesum A. Fernandes, Marcus V. Castegnaro, Jonder Morais, Daniel L. Baptista et Jairton Dupont. « Photoreforming driven by indium hydroxide/oxide nano-objects ». International Journal of Hydrogen Energy 44, no 47 (octobre 2019) : 25695–705. http://dx.doi.org/10.1016/j.ijhydene.2019.08.060.

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16

Puga, Alberto V., Amparo Forneli, Hermenegildo García et Avelino Corma. « Production of H2by Ethanol Photoreforming on Au/TiO2 ». Advanced Functional Materials 24, no 2 (1 août 2013) : 241–48. http://dx.doi.org/10.1002/adfm.201301907.

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17

Barreca, Davide, Lorenzo Bigiani, Matteo Monai, Giorgio Carraro, Alberto Gasparotto, Cinzia Sada, Sara Martí-Sanchez et al. « Supported Mn3O4 Nanosystems for Hydrogen Production through Ethanol Photoreforming ». Langmuir 34, no 15 (6 avril 2018) : 4568–74. http://dx.doi.org/10.1021/acs.langmuir.8b00642.

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18

Sanwald, Kai E., Tobias F. Berto, Wolfgang Eisenreich, Oliver Y. Gutiérrez et Johannes A. Lercher. « Catalytic routes and oxidation mechanisms in photoreforming of polyols ». Journal of Catalysis 344 (décembre 2016) : 806–16. http://dx.doi.org/10.1016/j.jcat.2016.08.009.

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19

Zhong, Na, Xinti Yu, Heng Zhao, Jinguang Hu et Ian D. Gates. « Biomass Photoreforming for Hydrogen Production over Hierarchical 3DOM TiO2-Au-CdS ». Catalysts 12, no 8 (26 juillet 2022) : 819. http://dx.doi.org/10.3390/catal12080819.

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Photocatalytic hydrogen production is a promising route to the provision of sustainable and green energy. However, the excess addition of traditional electron donors as the sacrificial agents to consume photogenerated holes greatly reduces the feasibility of this approach for commercialization. Herein, considering the abundant hydroxyl groups in cellulose, the major component of biomass, we adopted glucose (a component unit of cellulose), cellobiose (a structure unit of cellulose) and dissolving pulp (a pretreated cellulose) as electron donors for photocatalytic hydrogen production over a TiO2-Au-CdS material. The well-designed ternary TiO2-Au-CdS possesses a hierarchical three-dimensional ordered macroporous (3DOM) structure, which not only benefits light harvesting but can also facilitate mass diffusion to boost the reaction kinetics. As expected, the fabricated photocatalyst exhibits considerable hydrogen production from glucose (645.1 μmol·h−1·g−1), while the hydrogen production rates gradually decrease with the increased complexity in structure from cellobiose (273.9 μmol·h−1·g−1) to dissolving pulp (79.7 μmol·h−1·g−1). Other gaseous components such as CO and CH4 are also produced, indicating the partial conversion of biomass during the photoreforming process. This work demonstrates the feasibility of sustainable hydrogen production from biomass by photoreforming with a rational photocatalyst design.
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20

Samage, Anita, Pooja Gupta, Mahaveer A. Halakarni, Sanna Kotrappanavar Nataraj et Apurba Sinhamahapatra. « Progress in the Photoreforming of Carboxylic Acids for Hydrogen Production ». Photochem 2, no 3 (29 juillet 2022) : 580–605. http://dx.doi.org/10.3390/photochem2030040.

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Photoreforming is a process that connects the redox capability of photocatalysts upon light illumination to simultaneously drive the reduction of protons into hydrogen and the oxidation of organic substrates. Over the past few decades, researchers have devoted substantial efforts to enhancing the photocatalytic activity of the catalyst in hydrogen production. Currently, the realization of the potential of photocatalysts for simultaneous hydrogen production with value-added organics has motivated the research field to use the photo-oxidation path. As a distinct benefit, the less energetically demanding organic reforming is highly favorable compared to the slow kinetics of oxygen evolution, negating the need for expensive and/or harmful hole scavengers. Photocatalyst modifications, such as secondary component deposition, doping, defect, phase and morphology engineering, have been the main strategies adopted to tune the photo-oxidation pathways and oxidation products. The effect of the reaction parameters, including temperature, pH, reactant concentration and promising reactor strategies, can further enhance selectivity toward desired outcomes. This review provides a critical overview of photocatalysts in hydrogen production, including chemical reactions occurring with semiconductors and co-catalysts. The use of various oxygenates as sacrificial agents for hydrogen production is outlined in view of the transition of fossil fuels to clean energy. This review mainly focuses on recent development in the photoreforming of carboxylic acids, produced from the primary source, lignocellulose, through pyrolysis. The photo-oxidation of different carboxylic acids, e.g., formic acid, acetic acid and lactic acid, over different photocatalysts for hydrogen production is reviewed.
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21

Rumayor, M., J. Corredor, M. J. Rivero et I. Ortiz. « Prospective life cycle assessment of hydrogen production by waste photoreforming ». Journal of Cleaner Production 336 (février 2022) : 130430. http://dx.doi.org/10.1016/j.jclepro.2022.130430.

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22

Kollmannsberger, Sebastian L., Constantin A. Walenta, Carla Courtois, Martin Tschurl et Ueli Heiz. « Thermal Control of Selectivity in Photocatalytic, Water-Free Alcohol Photoreforming ». ACS Catalysis 8, no 12 (17 octobre 2018) : 11076–84. http://dx.doi.org/10.1021/acscatal.8b03479.

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23

Berto, Tobias F., Kai E. Sanwald, Wolfgang Eisenreich, Oliver Y. Gutiérrez et Johannes A. Lercher. « Photoreforming of ethylene glycol over Rh/TiO2 and Rh/GaN:ZnO ». Journal of Catalysis 338 (juin 2016) : 68–81. http://dx.doi.org/10.1016/j.jcat.2016.02.021.

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24

Bahadori, Elnaz, Antonio Tripodi, Alberto Villa, Carlo Pirola, Laura Prati, Gianguido Ramis et Ilenia Rossetti. « High Pressure Photoreduction of CO2 : Effect of Catalyst Formulation, Hole Scavenger Addition and Operating Conditions ». Catalysts 8, no 10 (30 septembre 2018) : 430. http://dx.doi.org/10.3390/catal8100430.

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The photoreduction of CO2 is an intriguing process which allows the synthesis of fuels and chemicals. One of the limitations for CO2 photoreduction in the liquid phase is its low solubility in water. This point has been here addressed by designing a fully innovative pressurized photoreactor, allowing operation up to 20 bar and applied to improve the productivity of this very challenging process. The photoreduction of CO2 in the liquid phase was performed using commercial TiO2 (Evonink P25), TiO2 obtained by flame spray pyrolysis (FSP) and gold doped P25 (0.2 wt% Au-P25) in the presence of Na2SO3 as hole scavenger (HS). The different reaction parameters (catalyst concentration, pH and amount of HS) have been addressed. The products in liquid phase were mainly formic acid and formaldehyde. Moreover, for longer reaction time and with total consumption of HS, gas phase products formed (H2 and CO) after accumulation of significant number of organic compounds in the liquid phase, due to their consecutive photoreforming. Enhanced CO2 solubility in water was achieved by adding a base (pH = 12–14). In basic environment, CO2 formed carbonates which further reduced to formaldehyde and formic acid and consequently formed CO/CO2 + H2 in the gas phase through photoreforming. The deposition of small Au nanoparticles (3–5 nm) (NPs) onto TiO2 was found to quantitatively influence the products distribution and increase the selectivity towards gas phase products. Significant energy storage in form of different products has been achieved with respect to literature results.
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Imizcoz, Mikel, et Alberto V. Puga. « Assessment of Photocatalytic Hydrogen Production from Biomass or Wastewaters Depending on the Metal Co-Catalyst and Its Deposition Method on TiO2 ». Catalysts 9, no 7 (3 juillet 2019) : 584. http://dx.doi.org/10.3390/catal9070584.

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A systematic study on the solar photocatalytic hydrogen production (photoreforming) performance of M/TiO2 (M = Au, Ag, Cu or Pt) using glucose as a model substrate, and further extended to lignocellulose hydrolysates and wastewaters, is herein presented. Three metal (M) co-catalyst loading methods were tested. Variation of the type of metal results in significantly dissimilar H2 production rates, albeit the loading method exerts an even greater effect in most cases. Deposition-precipitation (followed by hydrogenation) or photodeposition provided better results than classical impregnation (followed by calcination). Interestingly, copper as a co-catalyst performed satisfactorily as compared to Au, and slightly below Pt, thus representing a realistic inexpensive alternative to noble metals. Hydrolysates of either α-cellulose or rice husks, obtained under mild conditions (short thermal cycles at 160 °C), were rich in saccharides and thus suitable as feedstocks. Nonetheless, the presence of inhibiting byproducts hindered H2 production. A novel photocatalytic UV pre-treatment method was successful to initially remove the most recalcitrant portion of these minor products along with H2 production (17 µmol gcat−1 h−1 on Cu/TiO2). After a short UV step, simulated sunlight photoreforming was orders of magnitude more efficient than without the pre-treatment. Hydrogen production was also directly tested on two different wastewater streams, that is, a municipal influent and samples from operations in a fruit juice producing plant, with remarkable results obtained for the latter (up to 115 µmol gcat−1 h−1 using Au/TiO2).
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Nwosu, Ugochukwu, Aiguo Wang, Bruna Palma, Heng Zhao, Mohd Adnan Khan, Md Kibria et Jinguang Hu. « Selective biomass photoreforming for valuable chemicals and fuels : A critical review ». Renewable and Sustainable Energy Reviews 148 (septembre 2021) : 111266. http://dx.doi.org/10.1016/j.rser.2021.111266.

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27

Imizcoz, Mikel, et Alberto V. Puga. « Optimising hydrogen production via solar acetic acid photoreforming on Cu/TiO2 ». Catalysis Science & ; Technology 9, no 5 (2019) : 1098–102. http://dx.doi.org/10.1039/c8cy02349b.

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28

Sanwald, Kai E., Tobias F. Berto, Andreas Jentys, Donald M. Camaioni, Oliver Y. Gutiérrez et Johannes A. Lercher. « Kinetic Coupling of Water Splitting and Photoreforming on SrTiO3-Based Photocatalysts ». ACS Catalysis 8, no 4 (26 février 2018) : 2902–13. http://dx.doi.org/10.1021/acscatal.7b03192.

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29

Jung, Minsu, Judy N. Hart, Dominic Boensch, Jason Scott, Yun Hau Ng et Rose Amal. « Hydrogen evolution via glycerol photoreforming over Cu–Pt nanoalloys on TiO2 ». Applied Catalysis A : General 518 (mai 2016) : 221–30. http://dx.doi.org/10.1016/j.apcata.2015.10.040.

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30

Carraro, Giorgio, Chiara Maccato, Alberto Gasparotto, Tiziano Montini, Stuart Turner, Oleg I. Lebedev, Valentina Gombac et al. « Enhanced Hydrogen Production by Photoreforming of Renewable Oxygenates Through Nanostructured Fe2O3Polymorphs ». Advanced Functional Materials 24, no 3 (16 septembre 2013) : 372–78. http://dx.doi.org/10.1002/adfm.201302043.

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31

Asencios, Yvan J. O., et Vanessa A. Machado. « Photodegradation of Organic Pollutants in Seawater and Hydrogen Production via Methanol Photoreforming with Hydrated Niobium Pentoxide Catalysts ». Sustainable Chemistry 3, no 2 (18 avril 2022) : 172–91. http://dx.doi.org/10.3390/suschem3020012.

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In this work, the photocatalytic activity of Hydrated Niobium Pentoxide (synthesized by a simple and inexpensive method) was explored in two unknown reactions reported for this catalyst: the photodegradation of phenol in seawater and the photoreforming of methanol. The Hydrated Niobium Pentoxide (Nb1) was synthesized from the reaction of niobium ammoniacal oxalate NH4[NbO(C2O4)2·H2O]•XH2O with a strong base (NaOH). Further treatment of this catalyst with H2O2 led to a light-sensitive Hydrated Niobium Pentoxide (Nb2). The photocatalysts were characterized by XRD, DRS, SEM Microscopy, FTIR-ATR, EDX, and specific surface area (SBET). The characterization results demonstrate that the treatment of Hydrated Niobium Pentoxide sensitized the material, increased the surface area of the material, diminished the average particle size, and modified its surface charge, and formed peroxo groups on the catalytic surface. Although both photocatalysts (Nb1 and Nb2) were active for both proposed reactions, the sensitization of the photocatalyst was beneficial in distinct situations. In the photocatalytic degradation of phenol in seawater, the sensitization of the photocatalyst did not enhance the photocatalytic activity. In both photoreactions studied, the addition of the Pt° promoter readily increased the photocatalytic performance of both photocatalysts; in this case, the sensitized photocatalyst recorded the best results. The presence of OH• radicals was confirmed, and the great contribution of the Pt° promoter was in the increase in OH• radical generation; this increase was more effective in the sensitized photocatalyst. Our work demonstrated a simple and inexpensive way to synthesize niobium photocatalysts that can effectively be used in the photodegradation of phenol in seawater and in the photoreforming of methanol to produce hydrogen.
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Uekert, Taylor, Hatice Kasap et Erwin Reisner. « Photoreforming of Nonrecyclable Plastic Waste over a Carbon Nitride/Nickel Phosphide Catalyst ». Journal of the American Chemical Society 141, no 38 (29 août 2019) : 15201–10. http://dx.doi.org/10.1021/jacs.9b06872.

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Kasap, Hatice, Demetra S. Achilleos, Ailun Huang et Erwin Reisner. « Photoreforming of Lignocellulose into H2 Using Nanoengineered Carbon Nitride under Benign Conditions ». Journal of the American Chemical Society 140, no 37 (28 août 2018) : 11604–7. http://dx.doi.org/10.1021/jacs.8b07853.

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Zhao, Heng, Xinti Yu, Chao-Fan Li, Wenbei Yu, Aiguo Wang, Zhi-Yi Hu, Steve Larter, Yu Li, Md Golam Kibria et Jinguang Hu. « Carbon quantum dots modified TiO2 composites for hydrogen production and selective glucose photoreforming ». Journal of Energy Chemistry 64 (janvier 2022) : 201–8. http://dx.doi.org/10.1016/j.jechem.2021.04.033.

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Uekert, Taylor, Florian Dorchies, Christian M. Pichler et Erwin Reisner. « Photoreforming of food waste into value-added products over visible-light-absorbing catalysts ». Green Chemistry 22, no 10 (2020) : 3262–71. http://dx.doi.org/10.1039/d0gc01240h.

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Sanwald, Kai E., Tobias F. Berto, Wolfgang Eisenreich, Andreas Jentys, Oliver Y. Gutiérrez et Johannes A. Lercher. « Overcoming the Rate-Limiting Reaction during Photoreforming of Sugar Aldoses for H2-Generation ». ACS Catalysis 7, no 5 (4 avril 2017) : 3236–44. http://dx.doi.org/10.1021/acscatal.7b00508.

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Wang, Chao, Enqi Bu, Ying Chen, Zhengdong Cheng, Jingtao Zhang, Riyang Shu et Qingbin Song. « Enhanced photoreforming hydrogen production : Pickering interfacial catalysis from a bio-derived biphasic system ». Renewable Energy 134 (avril 2019) : 113–24. http://dx.doi.org/10.1016/j.renene.2018.09.001.

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38

Muscetta, Marica, Roberto Andreozzi, Laura Clarizia, Ilaria Di Somma et Raffaele Marotta. « Hydrogen production through photoreforming processes over Cu2O/TiO2 composite materials : A mini-review ». International Journal of Hydrogen Energy 45, no 53 (octobre 2020) : 28531–52. http://dx.doi.org/10.1016/j.ijhydene.2020.07.225.

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Gallo, Alessandro, Tiziano Montini, Marcello Marelli, Alessandro Minguzzi, Valentina Gombac, Rinaldo Psaro, Paolo Fornasiero et Vladimiro Dal Santo. « H2 Production by Renewables Photoreforming on Pt-Au/TiO2 Catalysts Activated by Reduction ». ChemSusChem 5, no 9 (13 juin 2012) : 1800–1811. http://dx.doi.org/10.1002/cssc.201200085.

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Chang, L., S. T. Yong, S. P. Chai, L. K. Putri, L. L. Tan et A. R. Mohamed. « A review of methanol photoreforming : elucidating the mechanisms, photocatalysts and recent advancement strategies ». Materials Today Chemistry 27 (janvier 2023) : 101334. http://dx.doi.org/10.1016/j.mtchem.2022.101334.

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Balsamo, Stefano Andrea, Roberto Fiorenza, Maria Teresa Armeli Iapichino, Francisco Javier Lopez-Tenllado, Francisco José Urbano et Salvatore Sciré. « H2 production through glycerol photoreforming using one-pot prepared TiO2-rGO-Au photocatalysts ». Molecular Catalysis 547 (août 2023) : 113346. http://dx.doi.org/10.1016/j.mcat.2023.113346.

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42

Escamilla, Juan Carlos, Jesús Hidalgo-Carrillo, Juan Martín-Gómez, Rafael C. Estévez-Toledano, Vicente Montes, Daniel Cosano, Francisco J. Urbano et Alberto Marinas. « Hydrogen Production through Glycerol Photoreforming on TiO2/Mesoporous Carbon : Influence of the Synthetic Method ». Materials 13, no 17 (28 août 2020) : 3800. http://dx.doi.org/10.3390/ma13173800.

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This article explores the effect of the synthetic method of titanium dioxide (TiO2)/C composites (physical mixture and the water-assisted/unassisted sol-gel method) on their photocatalytic activity for hydrogen production through glycerol photoreforming. The article demonstrates that, apart from a high surface area of carbon and the previous activation of its surface to favor titania incorporation, the appropriate control of titania formation is crucial. In this sense, even though the amount of incorporated titania was limited by the saturation of carbon surface groups (in our case, ca. 10 wt.% TiO2), the sol-gel process without water addition seemed to be the best method, ensuring the formation of small homogeneously-distributed anatase crystals on mesoporous carbon. In this way, a ca. 110-fold increase in catalyst activity compared to Evonik P25 (expressed as hydrogen micromole per grams of titania) was achieved.
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Martínez, Fabián M., Elim Albiter, Salvador Alfaro, Ana L. Luna, Christophe Colbeau-Justin, José M. Barrera-Andrade, Hynd Remita et Miguel A. Valenzuela. « Hydrogen Production from Glycerol Photoreforming on TiO2/HKUST-1 Composites : Effect of Preparation Method ». Catalysts 9, no 4 (4 avril 2019) : 338. http://dx.doi.org/10.3390/catal9040338.

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Coupling metal-organic frameworks (MOFs) with inorganic semiconductors has been successfully tested in a variety of photocatalytic reactions. In this work we present the synthesis of TiO2/HKUST-1 composites by grinding, solvothermal, and chemical methods, using different TiO2 loadings. These composites were used as photocatalysts for hydrogen production by the photoreforming of a glycerol-water mixture under simulated solar light. Several characterization techniques were employed, including X-ray diffraction (XRD), UV-Vis diffuse reflectance spectroscopy (DRS), infrared spectroscopy (FTIR), and time-resolved microwave conductivity (TRMC). A synergetic effect was observed with all TiO2/HKUST-1 composites (mass ratio TiO2/MOF 1:1), which presented higher photocatalytic activity than that of individual components. These results were explained in terms of an inhibition of the charge carrier (hole-electron) recombination reaction after photoexcitation, favoring the electron transfer from TiO2 to the MOF and creating reversible Cu1+/Cu0 entities useful for hydrogen production.
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Kurenkova, Anna Y., Tatiana B. Medvedeva, Nikolay V. Gromov, Andrey V. Bukhtiyarov, Evgeny Y. Gerasimov, Svetlana V. Cherepanova et Ekaterina A. Kozlova. « Sustainable Hydrogen Production from Starch Aqueous Suspensions over a Cd0.7Zn0.3S-Based Photocatalyst ». Catalysts 11, no 7 (20 juillet 2021) : 870. http://dx.doi.org/10.3390/catal11070870.

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We explored the photoreforming of rice and corn starch with simultaneous hydrogen production over a Cd0.7Zn0.3S-based photocatalyst under visible light irradiation. The photocatalyst was characterized by UV–vis diffuse reflectance spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The influence of starch pretreatment conditions, such as hydrolysis temperature and alkaline concentration, on the reaction rate was studied. The maximum rate of H2 evolution was 730 μmol·h−1·g−1, with AQE = 1.8% at 450 nm, in the solution obtained after starch hydrolysis in 5 M NaOH at 70 °C. The composition of the aqueous phase of the suspension before and after the photocatalytic reaction was studied via high-performance liquid chromatography, and such products as glucose and sodium gluconate, acetate, formate, glycolate, and lactate were found after the photocatalytic reaction.
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Munusamy, Thurga Devi, Sim Yee Chin, Mostafa Tarek et Md Maksudur Rahman Khan. « Sustainable hydrogen production by CdO/exfoliated g-C3N4 via photoreforming of formaldehyde containing wastewater ». International Journal of Hydrogen Energy 46, no 60 (septembre 2021) : 30988–99. http://dx.doi.org/10.1016/j.ijhydene.2021.01.176.

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Kennedy, Julia, James Hayward, Philip R. Davies et Michael Bowker. « Hydrogen production by the photoreforming of methanol and the photocatalytic water–gas shift reaction ». Journal of Physics : Energy 3, no 2 (11 mars 2021) : 024007. http://dx.doi.org/10.1088/2515-7655/abdd82.

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Ordomsky, Vitaly V. « Generation of quantum dots at the semiconductor surface for photoreforming of biomass to CO ». Chem Catalysis 2, no 6 (juin 2022) : 1249–51. http://dx.doi.org/10.1016/j.checat.2022.05.007.

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Shams Ghamsari, Zahra, et Hadis Bashiri. « Hydrogen production through photoreforming of methanol by Cu(s)/TiO2 nanocatalyst : Optimization and simulation ». Surfaces and Interfaces 21 (décembre 2020) : 100709. http://dx.doi.org/10.1016/j.surfin.2020.100709.

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Clarizia, Laura, Danilo Spasiano, Ilaria Di Somma, Raffaele Marotta, Roberto Andreozzi et Dionysios D. Dionysiou. « Copper modified-TiO2 catalysts for hydrogen generation through photoreforming of organics. A short review ». International Journal of Hydrogen Energy 39, no 30 (octobre 2014) : 16812–31. http://dx.doi.org/10.1016/j.ijhydene.2014.08.037.

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Bowker, M., C. Morton, J. Kennedy, H. Bahruji, J. Greves, W. Jones, P. R. Davies, C. Brookes, P. P. Wells et N. Dimitratos. « Hydrogen production by photoreforming of biofuels using Au, Pd and Au–Pd/TiO2 photocatalysts ». Journal of Catalysis 310 (février 2014) : 10–15. http://dx.doi.org/10.1016/j.jcat.2013.04.005.

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