Niobic acid nanoparticle catalysts for the aqueous phase transformation of glucose and fructose to 5-hydroxymethylfurfural

Reche, Mariano Tapia; Osatiashtiani, Amin; Durndell, Lee J.; Isaacs, Mark A.; Silva, Ângela; Lee, Adam F.; Wilson, Karen

doi:10.1039/c6cy01129b

Cited by 32 publications

(20 citation statements)

References 49 publications

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“…As an another line of our experiment, sustainable low temperature conversion of renewable fructose into platform chemical, LA, was explored owing to its high importance and handful of reports available for utilization of nanomaterials in such conversion reactions. The temperature dependent, aqueous phase reaction of fructose was first tested from 60 °C to 90 °C, since the melting point of D‐fructose is at 103–105° C plus undesirable side‐reactions are favourable at higher temperature ,. Figure (a) presented absorbance vs wavelength plot for the reactions carried out at different temperature after an hour.…”

Section: Resultsmentioning

confidence: 99%

Biosynthesized Quantum Dot Size Cu Nanocatalyst: Peroxidase Mimetic and Aqueous Phase Conversion of Fructose

et al. 2018

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Environmentally benign, stable quantum dot size spherical Cu particles with an average size of ∼ 4.5 nm, as measured via transmission electron microscope, were coherently tailored exploiting renewable ethno‐pharmacological Oxalis corniculata plant extract as both reducing plus capping agent. The reliable green aqueous synthesis approach completely excluded the usage of inert atmosphere and harmful chemicals including organic solvents. The ensuing cost effective Cu nanoparticles exhibited excellent intrinsic peroxidase like activity and superior nanozyme behaviour compare to earlier reports with Km value of 0.01426 M and rmax equal to 0.1399 Mmin−1 toward the oxidation of peroxidase substrate H2O2 in presence of o‐phenylenediamine, a paradigm reaction. Significantly, the as‐prepared Cu particles have been proven to be a novel catalyst for feasible selective aqueous phase conversion of fructose to levulinic acid with a maximum yield of ∼ 22.38% at 90°C in the absenteeism of prominent side product(s), auxiliaries and high temperature reaction condition. Lewis acid property and large surface area of the generated nanoscale particles attributed to their excellent catalytic potential introducing a new avenue in the continuous demand for better sensing, biomedical applications and cleaner energy production.

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Section: Resultsmentioning

confidence: 99%

Biosynthesized Quantum Dot Size Cu Nanocatalyst: Peroxidase Mimetic and Aqueous Phase Conversion of Fructose

et al. 2018

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“…5–8), (3) dehydration reactions of alcohols and polyols (No. 9–16),, (4) nucleophilic substitution reactions of carboxylic acids (and their derivatives),, and (6) selective oxidation/dehydrogenation reactions …”

Section: Introductionmentioning

confidence: 99%

“…9), have led to the new research area Nb 2 O 5 ‐catalyzed dehydration of biomass‐derived polyols (No. 10–16) . The hitherto reported Nb 2 O 5 ‐catalyzed dehydrative transformations of polyols are concerned with the dehydration of glycerol to acrolein (No.…”

Section: Introductionmentioning

confidence: 99%

“…[5][6][7][8], [12][13][14][15][16][17] (3) dehydration reactions of alcohols and polyols (No. [9][10][11][12][13][14][15][16], [15,[18][19][20][21][22][23][24][25][26][27][28][29] (4) nucleophilic substitution reactions of carboxylic acids (and their derivatives), [15,[30][31][32][33][34][35][36][37][38] and (6) selective oxidation/ dehydrogenation reactions. [39][40][41][42][43][44] The hydration reactions of alkenes (No.…”

Section: Introductionmentioning

confidence: 99%

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Lewis Acid Catalysis of Nb₂O₅ for Reactions of Carboxylic Acid Derivatives in the Presence of Basic Inhibitors

et al. 2018

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This review focuses on catalytic applications of niobium pentoxide (Nb2O5) and niobic acid (Nb2O5 ⋅ nH2O). These materials serve as heterogeneous acid catalysts that show excellent activity and selectivity for various types of reactions including hydrations, dehydrations, and oxidations. Most recently, they have been used for dehydration reactions of polyols and nucleophilic substitution reactions of carboxylic acid derivatives. A special focus is placed on the latter reactions, where superficial Nb5+ cations act as Lewis‐acidic sites that activate oxygen‐containing functional groups of substrates even in the presence of basic inhibitors such as water or amines. This unique behavior of Nb‐oxide‐based catalysts is a consequence of their Lewis acidity, which is characterized by their ability to simultaneously activate C=O bonds but not to engage in strong competitive adsorption of base molecules. Both experimental and theoretical investigations are presented in order to assess the characteristic features of the Nb‐oxide‐based catalysts together with their structural features.

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“…Since the first report by Tanabe [1], niobic acid (NA) has been recognized to be an effective catalyst for several reactions involved with participation or liberation of water molecules [2,3]. It is an insoluble polymeric oxide with different amounts of hydrated water depending on a preparation method [1].…”

Section: Introductionmentioning

confidence: 99%

Catalytic performance of surface modified-niobic acid

Dwiatmoko

2018

MATEC Web Conf.

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Abstract. Surface modification of niobic acid with phosphoric acid and its catalytic performance in the hydrolysis reaction has been studied. A series of catalysts, surface-modified with different concentration of phosphoric acid, have been prepared and characterized. It was found that the catalyst selectivity to glucose increased with the increase of acid concentration used for the surface modification. The extent of selectivity enhancement of the modified catalysts showed a good relationship with the atomic ratio of phosphorous and niobium on the surface.

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Niobic acid nanoparticle catalysts for the aqueous phase transformation of glucose and fructose to 5-hydroxymethylfurfural

Abstract: The first catalytic application of a nanoparticulate niobia solid acid prepared from a high area peroxo niobic acid sol, and its SBA-15 supported analogue, is demonstrated for the heterogeneously catalysed aqueous phase conversion of glucose and fructose to 5-HMF.

Cited by 32 publications

References 49 publications

Biosynthesized Quantum Dot Size Cu Nanocatalyst: Peroxidase Mimetic and Aqueous Phase Conversion of Fructose

Biosynthesized Quantum Dot Size Cu Nanocatalyst: Peroxidase Mimetic and Aqueous Phase Conversion of Fructose

Lewis Acid Catalysis of Nb₂O₅ for Reactions of Carboxylic Acid Derivatives in the Presence of Basic Inhibitors

Catalytic performance of surface modified-niobic acid

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Niobic acid nanoparticle catalysts for the aqueous phase transformation of glucose and fructose to 5-hydroxymethylfurfural

Abstract: The first catalytic application of a nanoparticulate niobia solid acid prepared from a high area peroxo niobic acid sol, and its SBA-15 supported analogue, is demonstrated for the heterogeneously catalysed aqueous phase conversion of glucose and fructose to 5-HMF.

Cited by 32 publications

References 49 publications

Biosynthesized Quantum Dot Size Cu Nanocatalyst: Peroxidase Mimetic and Aqueous Phase Conversion of Fructose

Biosynthesized Quantum Dot Size Cu Nanocatalyst: Peroxidase Mimetic and Aqueous Phase Conversion of Fructose

Lewis Acid Catalysis of Nb2O5 for Reactions of Carboxylic Acid Derivatives in the Presence of Basic Inhibitors

Catalytic performance of surface modified-niobic acid

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Product

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Lewis Acid Catalysis of Nb₂O₅ for Reactions of Carboxylic Acid Derivatives in the Presence of Basic Inhibitors