Silver doped lanthanum chromites by microwave combustion method

Athawale, Anjali A.; Desai, P. A.

doi:10.1016/j.ceramint.2011.05.008

Cited by 33 publications

(17 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When solvent, renewable reactants, and microwave irradiation are put together, there is practical potential for the green chemical synthesis of metal nanoparticles with controlled shapes and sizes . Not only silver, but silver doped lanthanum chromites can also be synthesized with MW energy . Several characterization techniques were used to examine these particles: FTIR revealed the oxygen bands and bending modes of the particles, XRD analysis showed peaks that corresponded with lanthanum chromite, and thermogravimetric analysis (TGA) proved the product to be stable.…”

Section: Microwave-assisted Synthesismentioning

confidence: 99%

“…Several characterization techniques were used to examine these particles: FTIR revealed the oxygen bands and bending modes of the particles, XRD analysis showed peaks that corresponded with lanthanum chromite, and thermogravimetric analysis (TGA) proved the product to be stable. Particles ranged from 7–8 to 20–26 nm and were magnetic in nature . Another example is the synthesis of nanopowder catalysts of Ag–Fe oxide.…”

Section: Microwave-assisted Synthesismentioning

confidence: 99%

See 1 more Smart Citation

Greener Techniques for the Synthesis of Silver Nanoparticles Using Plant Extracts, Enzymes, Bacteria, Biodegradable Polymers, and Microwaves

Hebbalalu

Lalley

Nadagouda

et al. 2013

ACS Sustainable Chem. Eng.

363

175

View full text Add to dashboard Cite

The use of silver nanoparticles (AgNPs) is gaining in popularity due to silver's antibacterial properties. Conventional methods for AgNP synthesis require dangerous chemicals and large quantities of energy (heat) and can result in formation of hazardous byproducts. This article summarizes recent activity in this general area where environmentally friendly synthetic techniques are currently being explored for the synthesis of "greener" AgNPs including the use of plant extracts, biodegradable polymers, and enzymes/bacteria and alternative energy input systems, such as microwave irradiation. Microwave heating enables efficient formation of nanostructures of uniform small sizes in shorter reaction times with reduced energy consumption; preventing agglomeration of ensuing nanoparticles is an additional attribute.

show abstract

Section: Microwave-assisted Synthesismentioning

confidence: 99%

Section: Microwave-assisted Synthesismentioning

confidence: 99%

Greener Techniques for the Synthesis of Silver Nanoparticles Using Plant Extracts, Enzymes, Bacteria, Biodegradable Polymers, and Microwaves

Hebbalalu

Lalley

Nadagouda

et al. 2013

ACS Sustainable Chem. Eng.

363

175

View full text Add to dashboard Cite

show abstract

“…In other studies, the particle size of LaCrO 3 prepared using hydrothermal method was determined by PSA method. The result proved that the average size of particle is in the range of micron [54] and 57 nm [55].…”

Section: Particle Size Distribution Analysismentioning

confidence: 82%

Pectins as Emulsifying Agent on the Preparation, Characterization, and Photocatalysis of Nano-LaCrO₃

Situmeang¹

2020

Pectins - Extraction, Purification, Characterization and Applications

View full text Add to dashboard Cite

The use of environmentally friendly chemicals as the emulsifying agent in the preparation of the advanced materials is a focus and is very interesting to do. Although the focus is important, the advanced material that is made remains a top priority regarding characterization and its activity. One of the chemicals for making advanced and environmentally friendly materials such as LaCrO 3 perovskite is pectin functioning as the emulsifying agent. In general, perovskite compounds are materials with very wide applications such as fuel cells, electronic equipment, sensors, magnetic materials, photoluminescent materials, thermic catalysts, and photocatalysts. Furthermore, the use of various solvents to produce perovskite compounds with the aim of getting good applications has been done a lot such as water, alcohols, or other organic solvents, respectively, in mixing precursors directly, precipitation and coprecipitation, microwave, auto-combustion, sol-gel, and hydrothermal methods. In this chapter, preparation of LaCrO 3 using pectin as an emulsifying agent will be discussed in advance together with characterization and application of LaCrO 3 in the photocatalytic reaction of dyes and cellulose conversion.

show abstract

“…The two absorption bands correspond to the bending vibration of OCrO bond and the stretching vibration of CrO bond in the octahedral CrO 6 , respectively. [ 35 ] The peak shape of the absorption band at 606 cm −1 becomes wider and wider, and the relative intensity decreases with increasing doping concentration of Ca 2+ (Figure 5a). The average ion radius and the tolerance factor decrease after Ca 2+ doping as the ion radius of Ca 2+ is smaller than that of La 3+ , resulting in tilting and twisting of the octahedral CrO 6 , which causes the decrease in O–Cr–O bond angle and Cr–O bond length in turn.…”

Section: Resultsmentioning

confidence: 99%

High‐Performance Reticular Porous Perovskite Coating with Wide‐Spectrum Absorption for Photothermal Conversion

Zhang

Liu

et al. 2021

Solar RRL

View full text Add to dashboard Cite

Good thermal shock resistance and high absorptivity in a wide spectral range, as the two key aspects of photothermal coating in high‐temperature applications, are seldom realized simultaneously. Herein, it is reported that a reticular porous Ca‐doped LaCrO3 perovskite photothermal coating fabricated by a simple process presents excellent thermal shock resistance between 1200 °C and room temperature and optical absorptivity of ≈94% in the wavelength range of 0.3–14 μm. The high‐temperature sintering after screen printing triggers significant variations in the microchemistry and microstructure of the Ca‐doped LaCrO3 coatings, and the experimental analyses and the first‐principles calculation demonstrate that the appropriate doping of Ca2+ causes lattice distortion, decreases the lattice parameters and bandgap, and effectively enhances interactions between the photon and carrier, resulting in the high optical absorptivity in the visible, near‐, and mid‐infrared ranges. The reticular porous microstructure and interfacial diffusion bonding between the coating and Al2O3 substrate with a gradient transition layer contribute to the high‐temperature thermal shock resistance. Herein, a novel way to fabricate a high‐performance and low‐cost photothermal conversion coating is provided, which presents a broad application prospect in energy harvesters and sensors.

show abstract

Silver doped lanthanum chromites by microwave combustion method

Cited by 33 publications

References 39 publications

Greener Techniques for the Synthesis of Silver Nanoparticles Using Plant Extracts, Enzymes, Bacteria, Biodegradable Polymers, and Microwaves

Greener Techniques for the Synthesis of Silver Nanoparticles Using Plant Extracts, Enzymes, Bacteria, Biodegradable Polymers, and Microwaves

Pectins as Emulsifying Agent on the Preparation, Characterization, and Photocatalysis of Nano-LaCrO₃

High‐Performance Reticular Porous Perovskite Coating with Wide‐Spectrum Absorption for Photothermal Conversion

Contact Info

Product

Resources

About

Silver doped lanthanum chromites by microwave combustion method

Cited by 33 publications

References 39 publications

Greener Techniques for the Synthesis of Silver Nanoparticles Using Plant Extracts, Enzymes, Bacteria, Biodegradable Polymers, and Microwaves

Greener Techniques for the Synthesis of Silver Nanoparticles Using Plant Extracts, Enzymes, Bacteria, Biodegradable Polymers, and Microwaves

Pectins as Emulsifying Agent on the Preparation, Characterization, and Photocatalysis of Nano-LaCrO3

High‐Performance Reticular Porous Perovskite Coating with Wide‐Spectrum Absorption for Photothermal Conversion

Contact Info

Product

Resources

About

Pectins as Emulsifying Agent on the Preparation, Characterization, and Photocatalysis of Nano-LaCrO₃