The Role of Temperature on Physical–Chemical Properties of Green Synthesized Porous Carbon Nanoparticles

Supriya, S.; Sriram, G.; Ngaini, Zainab; Kavitha, C.; Kurkuri, Mahaveer D.; Padova, Irene Paola De; Hegde, Gurumurthy

doi:10.1007/s12649-019-00675-0

Cited by 82 publications

(49 citation statements)

References 26 publications

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“…The peaks at these regions were specific to nanocarbon and indicate (002) and (100) lattice planes, respectively. The occurrence of broad peaks hinted at the formation of amorphous and porous carbon . Further, the XRD pattern of Pd/CNS confirmed the distribution of Pd particles on porous carbon.…”

Section: Resultsmentioning

confidence: 99%

“…The precursor is a biorenewable resource, areca nut kernel, and CNSs are produced by a catalyst‐free, one‐pot pyrolysis technique, ensuring cost‐effective carbon source and synthetic procedure. This work is a continuation of our previous studies on waste‐to‐wealth approach . The bio‐derived CNSs are directly used as catalytic support to Pd without any further activation, unlike the activated carbon materials that are currently in use .…”

Section: Introductionmentioning

confidence: 99%

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Cost‐effective bio‐derived mesoporous carbon nanoparticles‐supported palladium catalyst for nitroarene reduction and Suzuki–Miyaura coupling by microwave approach

Supriya¹,

Ananthnag²,

Shetti

et al. 2020

Applied Organom Chemis

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A new heterogeneous catalyst was synthesized by immobilizing Pd on areca nut kernel‐derived carbon nanospheres (CNSs). The CNSs, without any further activation processes, accommodated 3% of Pd on their surface. The new Pd/CNS material was used for the reduction of nitroarenes and Suzuki–Miyaura coupling of bromoarenes with aryl boronic acids. The reactions were conducted under microwave irradiation at 160 °C using 12 mol% of Pd/CNS (0.36% actual Pd content). The reduction of nitroarenes into their respective amino compounds was achieved in 10–20 min (conversion up to 100%); by contrast, the Suzuki–Miyaura reactions yielded up to 98% at 150 °C with 10 mol% of Pd/CNS catalyst. The products were identified using gas chromatography and nuclear magnetic resonance spectroscopy. The catalyst was isolated from reaction mixture and reused without any significant loss in the activity. Thus, the present work introduces one‐pot‐derived porous CNSs as efficient catalytic support to Pd, establishing an alternative to existing Pd/C in terms of cost and efficiency.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cost‐effective bio‐derived mesoporous carbon nanoparticles‐supported palladium catalyst for nitroarene reduction and Suzuki–Miyaura coupling by microwave approach

Supriya¹,

Ananthnag²,

Shetti

et al. 2020

Applied Organom Chemis

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“…After pyrolysis, the carbonized material was rinsed with dil. HCl, followed by washing with distilled water and dried at 80°C in oven for overnight [17]. The technique involved no usage of catalysts and activation agents, thereby producing CNSs by one-pot, environmental friendly procedure.…”

Section: Sample Preparationmentioning

confidence: 99%

“…Accordingly, the porous materials zeolites, silica, carbonaceous materials, molecular sieves, metal organic frameworks, nanoporous polymers, etc [12][13][14] have been investigated for their efficiency as potential CO 2 adsorbents. In recent years, the carbon-based materials having porous nature are extensively recommended as they exhibit diverse attractive features as listed; the pores in carbon materials ensure faster diffusion and extremely high permeability gas molecules compared to other solid sorbents [15]; possess inherent affinity towards CO 2 [16]; provide structural stability over a large number of cycles with insensitive to moisture [17]; require less energy for regeneration [18]; display tunable textural properties [17,19]; and ensure low cost [20,21].…”

Section: Introductionmentioning

confidence: 99%

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Efficient CO₂ adsorption using mesoporous carbons from biowastes

Sriram

Supriya²,

Kurkuri

et al. 2019

Mater. Res. Express

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The mesoporous carbon nanomaterials obtained from waste onion peels confirmed the formation of mesoporous carbon nanospheres (CNSs) with an average pore diameter of 2 nm. The as obtained CNSs were studied to demonstrate their ability to adsorb the greenhouse gas CO 2 at different temperatures, 30, 40 and 50°C. The results showed that the CNSs have high potential to adsorb CO 2 at these temperatures. Present work demonstrates the formation of sustainable, porous adsorbents by a simple waste to wealth based approach that is effective for the adsorption of CO 2 .

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Development and characterization of groundnut shell‐derived biocarbon‐reinforced polylactic acid composite filaments for FDM

Mandala,

Prasad,

Akella

2024

J of Applied Polymer Sci

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Biochar, a carbon‐rich biomass material has emerged as promising reinforcement and offers versatile applications and potential benefits in various fields, especially in fused deposition modeling (FDM). This study focuses on the development and characterization of groundnut shell‐derived biocarbon (GNSC) reinforced polylactic acid (PLA) filaments for FDM. The GNSC was synthesized through pyrolysis using a tubular furnace at temperatures 700, 800, and 900°C. Synthesized carbon was characterized using Raman spectroscopy, XRD, and SEM analysis. The results showed that the synthesized carbon particles were graphitic, spherical, and nanosized with an average diameter of 40 nm. The preferred biocarbon material, GNSC800 was selected for its high carbon content (98.25%) observed through EDX analysis. Composite filaments were produced with different GNSC800 loadings of 0.25%, 0.5%, and 0.75% using solvent casting and extrusion techniques. Thermal stability was evaluated using TGA and DSC, which showed improved properties with the addition of biocarbon. The mechanical properties and electrical conductivity were enhanced with the inclusion of biocarbon. The data were also validated using ANOVA and Tukey's test. Filament with the 0.5 wt% loading showed the most favorable thermomechanical properties exhibiting a 39.8% increase in tensile strength and a 17.5% improvement in tensile modulus.

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The Role of Temperature on Physical–Chemical Properties of Green Synthesized Porous Carbon Nanoparticles

Cited by 82 publications

References 26 publications

Cost‐effective bio‐derived mesoporous carbon nanoparticles‐supported palladium catalyst for nitroarene reduction and Suzuki–Miyaura coupling by microwave approach

Cost‐effective bio‐derived mesoporous carbon nanoparticles‐supported palladium catalyst for nitroarene reduction and Suzuki–Miyaura coupling by microwave approach

Efficient CO₂ adsorption using mesoporous carbons from biowastes

Development and characterization of groundnut shell‐derived biocarbon‐reinforced polylactic acid composite filaments for FDM

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The Role of Temperature on Physical–Chemical Properties of Green Synthesized Porous Carbon Nanoparticles

Cited by 82 publications

References 26 publications

Cost‐effective bio‐derived mesoporous carbon nanoparticles‐supported palladium catalyst for nitroarene reduction and Suzuki–Miyaura coupling by microwave approach

Cost‐effective bio‐derived mesoporous carbon nanoparticles‐supported palladium catalyst for nitroarene reduction and Suzuki–Miyaura coupling by microwave approach

Efficient CO2 adsorption using mesoporous carbons from biowastes

Development and characterization of groundnut shell‐derived biocarbon‐reinforced polylactic acid composite filaments for FDM

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Product

Resources

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Efficient CO₂ adsorption using mesoporous carbons from biowastes