Some surface and catalytic studies on chromic-oxide gel

Cross, N. E.; Leach, H. F.

doi:10.1016/0021-9517(71)90142-4

Cited by 21 publications

(1 citation statement)

References 13 publications

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“…Ultrafine nanostructured chromium(III) oxide with high surface areas has attracted considerable interest because of a wide variety of applications such as in green pigments, coating materials for thermal protection and wear resistance, heterogeneous catalysts, solar energy collectors, and transparent colorants, etc. − In catalysis, both chromium oxide and supported chromium have been used in many reactions such as polymerization, dehydrogenation, − dehydrocyclization, , and selective catalytic reduction of NO x with ammonia. − Various techniques have been developed to synthesize Cr 2 O 3 nanoparticles such as precipitation, precipitation−gelation, − sol−gel, − mechanochemical reaction, and subsequent heat treatment, oxidation of chromium in oxygen, and sonochemical methods…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Structure Characterization of Chromium Oxide Prepared by Solid Thermal Decomposition Reaction

Yan

et al. 2005

J. Phys. Chem. B

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Mesoporous chromium oxide (Cr2O3) nanocrystals were first synthesized by the thermal decomposition reaction of Cr(NO3)3.9H2O using citric acid monohydrate (CA) as the mesoporous template agent. The texture and chemistry of chromium oxide nanocrystals were characterized by N2 adsorption-desorption isotherms, FTIR, X-ray diffraction (XRD), UV-vis, and thermoanalytical methods. It was shown that the hydrate water and CA are the crucial factors in influencing the formation of mesoporous Cr2O3 nanocrystals in the mixture system. The decomposition of CA results in the formation of a mesoporous structure with wormlike pores. The hydrate water of the mixture provides surface hydroxyls that act as binders, making the nanocrystals aggregate. The pore structures and phases of chromium oxide are affected by the ratio of precursor-to-CA, thermal temperature, and time.

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Section: Introductionmentioning

confidence: 99%

Synthesis and Structure Characterization of Chromium Oxide Prepared by Solid Thermal Decomposition Reaction

Yan

et al. 2005

J. Phys. Chem. B

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Transition Metal Oxides

Landau

2002

Handbook of Porous Solids

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Physiochemical properties and novel biological applications of Callistemon viminalis‐mediated α‐Cr₂O₃ nanoparticles

Hassan

Khalil

Solangi

et al. 2019

Applied Organom Chemis

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We report an eco-friendly synthesis of α-Cr 2 O 3 nanoparticles (NPs) using Callistemon viminalis (Bottle Brush) flower extracts as an efficient reducing and capping agent. NPs of sizes 15 nm and 17 nm were synthesized by annealing them at 400°C and 500°C, respectively, which were characterized by X-ray diffraction, UV-Vis, Fourier transform-infrared, high-resolution-transmission electron microscopy/scanning electron microscopy, SAED, energy-dispersive X-ray spectroscopy and SQUID. Microplate-based assay was used for examining antibacterial potential against 12 pathogenic bacterial strains, and their minimum inhibitory concentrations were calculated. MTT cytotoxic assay was accomplished on Leishmania tropica amastigotes and promastigotes, which revealed IC 50 values of 44 μg/ml and 10.56 μg/ml, respectively. An IC 50 value of 46.32 μg/ml was obtained for HepG2 cancer cells. Enzyme inhibition studies indicated good acetylcholinesterase, moderate butyrylcholinesterase and low alpha-glucosidase inhibition. Hemolytic assay indicated hemocompatibility at low concentration. In addition, good DPPH radical scavenging and moderate reducing power and total antioxidant potential was revealed by α-Cr 2 O 3 NPs.

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Some surface and catalytic studies on chromic-oxide gel

Cited by 21 publications

References 13 publications

Synthesis and Structure Characterization of Chromium Oxide Prepared by Solid Thermal Decomposition Reaction

Synthesis and Structure Characterization of Chromium Oxide Prepared by Solid Thermal Decomposition Reaction

Transition Metal Oxides

Physiochemical properties and novel biological applications of Callistemon viminalis‐mediated α‐Cr₂O₃ nanoparticles

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Some surface and catalytic studies on chromic-oxide gel

Cited by 21 publications

References 13 publications

Synthesis and Structure Characterization of Chromium Oxide Prepared by Solid Thermal Decomposition Reaction

Synthesis and Structure Characterization of Chromium Oxide Prepared by Solid Thermal Decomposition Reaction

Transition Metal Oxides

Physiochemical properties and novel biological applications of Callistemon viminalis‐mediated α‐Cr2O3 nanoparticles

Contact Info

Product

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About

Physiochemical properties and novel biological applications of Callistemon viminalis‐mediated α‐Cr₂O₃ nanoparticles