Sustainable functionalization of carbon black <i>via</i> dry ball milling

Kiani, Aida; Sozio, Nicolas; Acocella, Maria Rosaria

doi:10.1039/d3me00042g

Cited by 8 publications

(7 citation statements)

References 40 publications

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“…In particular, harsh conditions like those required from the Hummers oxidation were needed to provide the carboxyl functionalities essential for the cation exchange. 27…”

Section: Resultsmentioning

confidence: 99%

“…Then, to verify the ability of B1 to be ionically functionalized by using the mechanochemical approach, the first reaction was performed in the conditions already optimized for oxidized carbon black. 27…”

Section: Resultsmentioning

confidence: 99%

“…In particular, harsh conditions like those required from the Hummers oxidation were needed to provide the carboxyl functionalities essential for the cation exchange. 27 Conversely, in the presence of a starting material such as B1, the extensive presence of hydroxyl groups suitable for cation exchange, could avoid the additional step of oxidation providing a completely green functionalization. Then, to verify the ability of B1 to be ionically functionalized by using the mechanochemical approach, the first reaction was performed in the conditions already optimized for oxidized carbon black.…”

Section: Materials Advances Papermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…An easy chemical modification on carbon surface was recently reported by using an eco-friendly procedure, where the ability of carbon black to form an ionic bond with quaternary phosphonium salt using a dry planetary ball milling was investigated. 27 The reaction takes place in 30 minutes without solvent and any additional reagent, through the breaking or building of chemical bonds by applying both impact and shear forces to particles that collide with the milling balls. First elastic forces and then irreversible plastic deformations generate new surfaces of the reactant easier to contact and react.…”

Section: Introductionmentioning

confidence: 99%

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Eco-friendly one-shot approach for producing a functionalized nano-torrefied biomass: a new application of ball milling technology

Kiani,

Lamberti,

Viscusi

et al. 2024

Mater. Adv.

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“…In particular, harsh conditions like those required from the Hummers oxidation were needed to provide the carboxyl functionalities essential for the cation exchange. 27…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Materials Advances Papermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Eco-friendly one-shot approach for producing a functionalized nano-torrefied biomass: a new application of ball milling technology

Kiani,

Lamberti,

Viscusi

et al. 2024

Mater. Adv.

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Surface modification of commercial carbon black by silane coupling agents for improving dispersibility in rubber compounds

Jaberi Mofrad,

Ostad Movahed,

Ahmadpour

2024

J of Applied Polymer Sci

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The dispersion of a filler in a rubber matrix is a crucial parameter affecting the mechanical and dynamical properties of a rubber compound. It is the current issue of the rubber compounding industry because, most fillers are categorized as a mineral, while the rubber is an organic material. The surface modification of the filler has been accepted as an effective technique for the improvement of the abovementioned parameter. First, the surface premodification of commercial carbon black with a grade of N660 (CB) was implemented by four different oxidation methods. After that, among of used methods, the oxidation method using citric acid was selected to produce modified carbon black (CB‐Oxi) for further treatment. Subsequently, the coupling agent, Bis[3‐(triethoxysilyl)propyl] tetrasulfide (TESPT) was functionalized on the surface of CB‐Oxi to produce modified‐CB‐Oxi. Also, for comparison purposes, the TESPT functionalization was accomplished on untreated CB to form modified‐CB. The FTIR spectra of CB‐Oxi showed using the premodification method introduced the hydroxyl and carboxyl groups on the surface of CB. The correspondent spectra for modified‐CB‐Oxi confirmed the existence of silane groups on the surface of the carbon black. However, the mentioned silane groups were not observed on the surface of modified‐CB. The findings were strengthened by several characteristic techniques including, FESEM, XRD, EDS, CHNS elemental analysis, and RAMAN spectra. The FESEM graphs and elemental mapping showed homogeneous dispersion and uniform distribution of sulfur and silicon elements on the modified‐CB‐Oxi surface. According to RAMAN spectra, the disturbance in the structure of carbon black graphite was reduced after surface modification. modified‐CB‐Oxi is proposed as a potential substitute filler for current commercial carbon black in rubber compounding.

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Solid‐State Reaction of Alkylamines with CO₂ in Ambient Air

Kiani,

Rosaria Acocella,

Auriemma

et al. 2024

ChemSusChem

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This paper explores possible procedures to accelerate CO2 capture from ambient air by a crystalline alkylamine surfactant (octadecylamine), leading to the corresponding crystalline ammonium‐carbamate. Conversion of the amine to the carbamate, in different conditions, is studied by four different techniques: WAXD, FTIR, TGA, and DSC. The WAXD study also gives relevant information on the crystal structures of both amine and derived carbamate. Kinetics of reactions of the crystalline amine are mainly studied by DSC scans, by evaluating melting enthalpies of residual amine. The kinetics of conversion of the amine in ambient CO2 is strongly accelerated by ball milling with full conversion achieved after only 4h, while the reaction kinetics of amine powder simply exposed to ambient CO2 is complete only after nearly 103 h. A substantial increase in kinetics of the solid‐state amine reaction with ambient CO2 can be also achieved by increasing the temperature up to 50°C, i.e. at a temperature slightly lower than amine melting. However, the time for full conversion remains much higher than for room‐temperature ball‐milled amine (roughly 102h vs 4h). Hence, suitable ball‐milling procedures can lead to complete and relatively fast conversion of the crystalline amine to the crystalline ammonium‐carbamate, even with ambient CO2

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Sustainable functionalization of carbon black via dry ball milling

Abstract: Here, a green and sustainable functionalization of oxidized Carbon Black by dry ball milling with tetraphenyl phosphonium bromide (TPPBr) is reported. The reaction proceeds efficiently in solvent-free conditions, absence of...

Cited by 8 publications

References 40 publications

Eco-friendly one-shot approach for producing a functionalized nano-torrefied biomass: a new application of ball milling technology

Eco-friendly one-shot approach for producing a functionalized nano-torrefied biomass: a new application of ball milling technology

Surface modification of commercial carbon black by silane coupling agents for improving dispersibility in rubber compounds

Solid‐State Reaction of Alkylamines with CO₂ in Ambient Air

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Sustainable functionalization of carbon black via dry ball milling

Abstract: Here, a green and sustainable functionalization of oxidized Carbon Black by dry ball milling with tetraphenyl phosphonium bromide (TPPBr) is reported. The reaction proceeds efficiently in solvent-free conditions, absence of...

Cited by 8 publications

References 40 publications

Eco-friendly one-shot approach for producing a functionalized nano-torrefied biomass: a new application of ball milling technology

Eco-friendly one-shot approach for producing a functionalized nano-torrefied biomass: a new application of ball milling technology

Surface modification of commercial carbon black by silane coupling agents for improving dispersibility in rubber compounds

Solid‐State Reaction of Alkylamines with CO2 in Ambient Air

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Product

Resources

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Solid‐State Reaction of Alkylamines with CO₂ in Ambient Air