Synthesis of Nickel Hexacyanoferrate Nanoparticles and Their Potential as Heterogeneous Catalysts for the Solvent-Free Oxidation of Benzyl Alcohol

Ali, Shah Raj; Chandra, Prakash; Latwal, Mamta; Jain, Shalabh; Bansal, Vipin; Singh, Sudhanshu P.

doi:10.1016/s1872-2067(10)60292-6

Cited by 46 publications

(9 citation statements)

References 38 publications

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“…No significant change in the oxidation of benzyl alcohol was observed when running the reaction for 300 min. Similar results were reported earlier by Ali et al [49]. Therefore, the catalytic activity of CuFe 2 O 4 -MHM is higher than other samples, due to that with very smaller particle size distribution would be a potentially efficient catalyst [50].…”

Section: Catalytic Oxidation Of Benzylic Alcoholssupporting

confidence: 90%

“…Figure 12 shows the influence of the catalyst amount on the conversion and selectivity towards the oxidation of benzylic alcohols into carbonyls. The conversion is gradually increased with increase in the amount of catalyst from 0.1 to 0.5 g, (Reaction conditions: Catalyst (CuFe 2 O 4 -MHM), 0.1-0.8 g; benzylic alcohols (4-methyl benzyl alcohol and 4-methoxy benzyl alcohol), 5 mmol; Acetonitrile, 5 mmol; H 2 O 2 , 5 mmol; temperature, 80°C, time, 5 h), and further increase the catalyst amount (0.6-0.8 g), the conversion and yield remain nearly the same, which suggests that large amount of catalyst, is not needed to improve the reaction product [49]. However, it is found that with the increase of catalyst amount the conversion and yield increases up to 0.5 g and this may apparently due to the availability of more active sites of the catalyst.…”

Section: Catalytic Oxidation Of Benzylic Alcoholsmentioning

confidence: 98%

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Hibiscus rosa-sinensis Leaf Extracted Green Methods, Magneto-Optical and Catalytic Properties of Spinel CuFe2O4 Nano- and Microstructures

Manikandan

Durka²,

Antony

2015

J Inorg Organomet Polym

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Spinel CuFe 2 O 4 nano-and microstructures were synthesized by a simple, economical and eco-friendly microwave heating (MHM) and modified sol-gel methods (SGM) using metal nitrates and Hibiscus rosa-sinensis leaf extracted solution, instead of toxic inorganic/organic catalyst, template and surfactant. Powder XRD, FT-IR, EDX and SAED results were confirmed that the as-synthesized products have a single-phase spinel structure with high crystallinity and without the presence of any other secondary phase impurities. The morphology of the samples was revealed by HR-SEM and HR-TEM techniques show that the MHM and SGM products consist of nano-and microstructures, respectively, and their possible formation mechanisms were also proposed. The optical band gap (E g ) was measured using Kubelka-Munk model and it shows higher value (2.35 eV) for CuFe 2 O 4 -MHM than CuFe 2 O 4 -SGM (2.18 eV), due to the smaller particle size of CuFe 2 O 4 -MHM. The magnetic property of the samples showed a ferromagnetic behavior and the magnetization (M s ) value of CuFe 2 O 4 -MHM is higher i.e. 61.13 emu/g than CuFe 2 O 4 -SGM (57.25 emu/g). Both the samples were successfully tested as catalysts for the conversion of benzylic alcohols to respective carbonyls using H 2 O 2 (as oxidant) and acetonitrile (as a solvent) catalytic system. It was found that the CuFe 2 O 4 -MHM catalyst show best performance of conversion of aromatic alcohols into aldehydes than that of CuFe 2 O 4 -SGM. Spinel CuFe 2 O 4 catalyst is magnetically recyclable and could be reused with no significant loss in catalytic activity as proved for five consecutive cycles.

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Section: Catalytic Oxidation Of Benzylic Alcoholssupporting

confidence: 90%

Section: Catalytic Oxidation Of Benzylic Alcoholsmentioning

confidence: 98%

Hibiscus rosa-sinensis Leaf Extracted Green Methods, Magneto-Optical and Catalytic Properties of Spinel CuFe2O4 Nano- and Microstructures

Manikandan

Durka²,

Antony

2015

J Inorg Organomet Polym

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“…Beside their high costs, these precious metals also have serious toxicity issues and difficulty in preparation and rarity of these noble metals makes these catalysts 2 Journal of Chemistry impractical for industrial applications [29,30]. Therefore, huge efforts have been made in order to replace these expensive noble metal catalysts with cheaper and plentiful nonnoble metals, for example, copper [31,32], cobalt [33,34], nickel [35][36][37], iron [38,39], vanadium [40], silver [41,42], chromium [43], molybdenum [44,45], rhenium [46], and zirconium [47], for selective oxidation of alcohols. The metal, metal oxide, and mixed metal oxide nanoparticles catalysts were also found to be highly effective for the catalytic oxidation of alcohols.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Relative Study on the Catalytic Activity of Zinc Oxide Nanoparticles Doped MnCO₃, –MnO₂, and –Mn₂O₃ Nanocomposites for Aerial Oxidation of Alcohols

Assal

Kuniyil

Shaik

et al. 2017

Journal of Chemistry

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Zinc oxide nanoparticles doped manganese carbonate catalysts [ % ZnO x -MnCO 3 ] (where = 0-7) were prepared via a facile and straightforward coprecipitation procedure, which upon different calcination treatments yields different manganese oxides, that is, [ % ZnO x -MnO 2 ] and [ % ZnO x -Mn 2 O 3 ]. A comparative catalytic study was conducted to evaluate the catalytic efficiency between carbonates and oxides for the selective oxidation of secondary alcohols to corresponding ketones using molecular oxygen as a green oxidizing agent without using any additives or bases. The prepared catalysts were characterized by different techniques such as SEM, EDX, XRD, TEM, TGA, BET, and FTIR spectroscopy. The 1% ZnO x -MnCO 3 calcined at 300 ∘ C exhibited the best catalytic performance and possessed highest surface area, suggesting that the calcination temperature and surface area play a significant role in the alcohol oxidation. The 1% ZnO x -MnCO 3 catalyst exhibited superior catalytic performance and selectivity in the aerial oxidation of 1-phenylethanol, where 100% alcohol conversion and more than 99% product selectivity were obtained in only 5 min with superior specific activity (48 mmol⋅g −1 ⋅h −1 ) and 390.6 turnover frequency (TOF). The specific activity obtained is the highest so far (to the best of our knowledge) compared to the catalysts already reported in the literatures used for the oxidation of 1-phenylethanol. It was found that ZnO x nanoparticles play an essential role in enhancing the catalytic efficiency for the selective oxidation of alcohols. The scope of the oxidation process is extended to different types of alcohols. A variety of primary, benzylic, aliphatic, allylic, and heteroaromatic alcohols were selectively oxidized into their corresponding carbonyls with 100% convertibility without overoxidation to the carboxylic acids under base-free conditions.

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“…Furthermore, there are many oxidation catalysts prepared by employing noble metals, such as gold [16][17][18][19][20][21], palladium [22][23][24][25], platinum [26,27], rhodium [28,29], and ruthenium [30,31], which have been extensively utilized for the aerial oxidation of alcohols with high catalytic performances. Consequently, a significant effort has been made in order to explore eco-friendly and low cost catalysts 2 Advances in Materials Science and Engineering such as nonnoble metals like copper [32][33][34], cobalt [35][36][37], nickel [38][39][40], iron [41,42], vanadium [43], silver [44], chromium [45,46], molybdenum [47,48], rhenium [49], and zinc [50][51][52] for aerobic oxidation of alcohols. In addition, it has been extensively reported that the catalytic activity of mixed metal oxide nanoparticles catalysts enhanced remarkably upon doping with other metals probably due to the extremely high surface area of metal nanoparticles [53,54].…”

Section: Introductionmentioning

confidence: 99%

Comparative Catalytic Evaluation of Nano-ZrO_x Promoted Manganese Catalysts: Kinetic Study and the Effect of Dopant on the Aerobic Oxidation of Secondary Alcohols

Assal

Kuniyil

Khan

et al. 2017

Advances in Materials Science and Engineering

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This work reports the zirconia (ZrO x ) nanoparticles doped MnCO 3 catalysts prepared by facile and simple coprecipitation technique and the synthesis of zirconia-manganese carbonate [X% ZrO x -MnCO 3 ] (where % = 0-7%) catalyst which upon calcination at 400 ∘ C is converted to zirconia-manganese dioxide [1% ZrO x -MnO 2 ] and when calcined at 500 ∘ C is converted to zirconiamanganic trioxide [1% ZrO x -Mn 2 O 3 ]. A comparative catalytic study was performed to investigate the catalytic efficiency between carbonate and oxides for the selective oxidation of 1-phenylethanol by using molecular O 2 as a clean oxidant. The influence of several parameters such as w/w% of ZrO x , reaction time, calcination temperature, catalyst amount, and reaction temperature has been thoroughly examined using oxidation of 1-phenylethanol as a model substrate. The 1% ZrO x -MnCO 3 precalcined at 300 ∘ C exhibited the best catalytic efficiency. It was found that ZrO x nanoparticles also play an essential role in enhancing the effectiveness of the catalytic system for the aerobic oxidation of alcohols. Furthermore, the physical and chemical properties of synthesized catalysts were evaluated by microscopic and spectroscopic techniques. An extremely high specific activity of 40 mmol⋅g −1 ⋅h −1 with a 100% conversion of oxidation product and selectivity of >99% was achieved within extremely short reaction time (6 min).

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Synthesis of Nickel Hexacyanoferrate Nanoparticles and Their Potential as Heterogeneous Catalysts for the Solvent-Free Oxidation of Benzyl Alcohol

Cited by 46 publications

References 38 publications

Hibiscus rosa-sinensis Leaf Extracted Green Methods, Magneto-Optical and Catalytic Properties of Spinel CuFe2O4 Nano- and Microstructures

Hibiscus rosa-sinensis Leaf Extracted Green Methods, Magneto-Optical and Catalytic Properties of Spinel CuFe2O4 Nano- and Microstructures

Synthesis, Characterization, and Relative Study on the Catalytic Activity of Zinc Oxide Nanoparticles Doped MnCO₃, –MnO₂, and –Mn₂O₃ Nanocomposites for Aerial Oxidation of Alcohols

Comparative Catalytic Evaluation of Nano-ZrO_x Promoted Manganese Catalysts: Kinetic Study and the Effect of Dopant on the Aerobic Oxidation of Secondary Alcohols

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Synthesis of Nickel Hexacyanoferrate Nanoparticles and Their Potential as Heterogeneous Catalysts for the Solvent-Free Oxidation of Benzyl Alcohol

Cited by 46 publications

References 38 publications

Hibiscus rosa-sinensis Leaf Extracted Green Methods, Magneto-Optical and Catalytic Properties of Spinel CuFe2O4 Nano- and Microstructures

Hibiscus rosa-sinensis Leaf Extracted Green Methods, Magneto-Optical and Catalytic Properties of Spinel CuFe2O4 Nano- and Microstructures

Synthesis, Characterization, and Relative Study on the Catalytic Activity of Zinc Oxide Nanoparticles Doped MnCO3, –MnO2, and –Mn2O3 Nanocomposites for Aerial Oxidation of Alcohols

Comparative Catalytic Evaluation of Nano-ZrOx Promoted Manganese Catalysts: Kinetic Study and the Effect of Dopant on the Aerobic Oxidation of Secondary Alcohols

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Synthesis, Characterization, and Relative Study on the Catalytic Activity of Zinc Oxide Nanoparticles Doped MnCO₃, –MnO₂, and –Mn₂O₃ Nanocomposites for Aerial Oxidation of Alcohols

Comparative Catalytic Evaluation of Nano-ZrO_x Promoted Manganese Catalysts: Kinetic Study and the Effect of Dopant on the Aerobic Oxidation of Secondary Alcohols