Photocatalytic Hydrogen Production from Aqueous Solutions of Glucose and Xylose over Layered Perovskite-like Oxides HCa2Nb3O10, H2La2Ti3O10 and Their Inorganic-Organic Derivatives

Kurnosenko, Sergei A.; Voytovich, Vladimir V.; Silyukov, Oleg I.; Rodionov, Ivan A.; Zvereva, Irina A.

doi:10.3390/nano12152717

Cited by 9 publications

(9 citation statements)

References 85 publications

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“…Functionalization of HCa 2 Nb 3 O 10 and H 2 La 2 Ti 3 O 10 perovskites by ethanol, ethylamine, methylamine, or n-butylamine was recently reported for the aqueous phase, photocatalytic production of hydrogen production from C6 carbohydrates (Dglucose and D-xylose) using a 1 wt % Pt cocatalyst. 332 The perovskites were >8 times as active for photocatalytic reforming of carbohydrates to hydrogen than their unmodified counterparts. Interlayer voids within certain perovskites can provide additional reaction zones, whose chemistry is controlled by the steric properties of sacrificial agents (e.g., hole scavengers), which contribute to the higher activity of the functionalized perovskite photocatalysts (Figure 26).…”

Section: Esterification and Transesterificationmentioning

confidence: 99%

“… Photophysical properties of such perovskites can also be modified by anchoring of organic moieties on oxygen vertices of octahedra to create functional inorganic–organic hybrid photocatalysts. Functionalization of HCa 2 Nb 3 O 10 and H 2 La 2 Ti 3 O 10 perovskites by ethanol, ethylamine, methylamine, or n -butylamine was recently reported for the aqueous phase, photocatalytic production of hydrogen production from C6 carbohydrates ( d -glucose and d -xylose) using a 1 wt % Pt cocatalyst . The organic-modified perovskites were >8 times as active for photocatalytic reforming of carbohydrates to hydrogen than their unmodified counterparts.…”

Section: Perovskite Catalyzed Biomass Valorizationmentioning

confidence: 99%

Section: Perovskite Catalyzed Biomass Valorizationmentioning

confidence: 99%

“…331 Perovskites, especially those comprising ionexchangeable layers with corresponding protonated forms, contain octahedral BO 6 structures that enable efficient separation of photogenerated charge carriers, a desirable property for photocatalytic reactions (Figure 26). 332 Photophysical properties of such perovskites can also be modified by anchoring of organic moieties on oxygen vertices of octahedra to create functional inorganic−organic hybrid photocatalysts. Functionalization of HCa 2 Nb 3 O 10 and H 2 La 2 Ti 3 O 10 perovskites by ethanol, ethylamine, methylamine, or n-butylamine was recently reported for the aqueous phase, photocatalytic production of hydrogen production from C6 carbohydrates (Dglucose and D-xylose) using a 1 wt % Pt cocatalyst.…”

Section: Photocatalytic Conversion Of Biomass Usingmentioning

confidence: 99%

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Perovskite Catalysts for Biomass Valorization

et al. 2023

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Biomass is a widely used renewable energy source, whose uptake is growing due to concerns about the impact of anthropogenic fossil fuel combustion on climate change. Waste biomass-derived fuels and chemicals offer a partial solution to reducing global reliance on fossil fuels in pursuit of Net Zero 2050 CO2 emissions, in concert with environmental, health, and economic benefits. Biorefineries aim to convert biomass resources such as forestry and agricultural waste into diverse product streams, akin to the processing of nonrenewable fossil fuels by petrochemical refineries. However, realizing this ambition requires design of hydrothermally stable catalysts with tunable redox properties and acid–base character to promote molecular deoxygenation or the interconversion of oxygen functionalities. Perovskite oxides of general formula ABO3 (where A = rare or alkaline earth cations and B = transition metal cations) exhibit structural flexibility and diverse surface chemistry; ∼90% of all metals can be introduced to perovskite oxides. Here, we review recent developments in the use of perovskite oxide catalysts for biomass valorization, focusing on structure–reactivity relationships in hydroprocessing, oxidation, steam reforming, and acid–base reactions. Prospects and challenges for the broader application of perovskite oxide catalysts to biomass valorization are also highlighted.

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Section: Esterification and Transesterificationmentioning

confidence: 99%

Section: Perovskite Catalyzed Biomass Valorizationmentioning

confidence: 99%

Section: Perovskite Catalyzed Biomass Valorizationmentioning

confidence: 99%

Section: Photocatalytic Conversion Of Biomass Usingmentioning

confidence: 99%

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Perovskite Catalysts for Biomass Valorization

et al. 2023

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“…Currently, the reactivity of the protonated niobate HSr 2 Nb 3 O 10 ∙yH 2 O with organic substances has not been sufficiently studied, except for some of the papers presented above. However, the formation of its organically modified derivatives deserves special attention since the inorganic–organic hybrids based on layered perovskite-like oxides are of high interest as high-performance photocatalytic materials for hydrogen production and water purification, outperforming the initial compounds in the activity up to several orders of magnitude [ 38 , 39 , 40 , 41 , 42 , 43 , 44 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Inorganic-Organic Derivatives of Layered Perovskite-like Niobate HSr2Nb3O10 with n-Amines and n-Alcohols

et al. 2023

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A protonated and hydrated Dion-Jacobson-phase HSr2Nb3O10∙yH2O was used to prepare two series of inorganic–organic derivatives containing non-covalently intercalated n-alkylamines and covalently grafted n-alkoxy groups of different lengths, as they are promising hybrid materials for photocatalytic applications. Preparation of the derivatives was carried out both under the conditions of standard laboratory synthesis and by solvothermal methods. For all the hybrid compounds synthesized structure, quantitative composition, a type of bonding between inorganic and organic parts as well as light absorption range were discussed using powder XRD, Raman, IR and NMR spectroscopy, TG, elemental CHN analysis, and DRS. It was shown that the inorganic–organic samples obtained contain approximately one interlayer organic molecule or group per proton of the initial niobate, as well as some amount of intercalated water. In addition, the thermal stability of the hybrid compounds strongly depends on the nature of the organic component anchoring to the niobate matrix. Although non-covalent amine derivatives are stable only at low temperatures, covalent alkoxy ones can withstand heat up to 250 °C without perceptible decomposition. The fundamental absorption edge of both the initial niobate and the products of its organic modification lies in the near-ultraviolet region (370–385 nm).

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