Sustainable use of recycled soot (carbon black) for the cleaner production of value-added products: A compendium

Uttaravalli, Appala Naidu; Dinda, Srikanta; Kakara, Vighneswara Rao; Rao, A. V. Raghavendra; Daida, Tejaswini; Gidla, Bhanu Radhika

doi:10.1016/j.ceja.2022.100324

Cited by 8 publications

(4 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The carbon resulting from the burning of paraffin wax in candles is known as candle soot carbon. This carbon exhibits a unique nanostructure consisting primarily of nanospheres with varied internal structures of concentrically wrapped and graphene-like layers of carbon [ 18 ]. These carbon nanostructures have a high surface area, a mesoporous structure, and favorable electrical conductivity [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

Candle Soot as a Novel Support for Nickel Nanoparticles in the Electrocatalytic Ethanol Oxidation

Mansor,

Budiman,

Zainoodin

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

The enhancement of carbon-supported components is a crucial factor in augmenting the interplay between carbon-supported and metal-active components in the utilization of catalysts for direct ethanol fuel cells (DEFCs). Here, we propose a strategy for designing a catalyst by modifying candle soot (CS) and loading nickel onto ordered carbon soot. The present study aimed to investigate the effect of the Ni nanoparticles content on the electrocatalytic performance of Ni–CS, ultimately leading to the identification of a maximum composition. The presence of an excessive quantity of nickel particles leads to a decrease in the number of active sites within the material, resulting in sluggishness of the electron transfer pathway. The electrocatalyst composed of nickel and carbon support, with a nickel content of 20 wt%, has demonstrated a noteworthy current activity of 18.43 mA/cm2, which is three times that of the electrocatalyst with a higher nickel content of 25 wt%. For example, the 20 wt% Ni–CS electrocatalytic activity was found to be good, and it was approximately four times higher than that of 20 wt% Ni–CB (nickel–carbon black). Moreover, the chronoamperometry (CA) test demonstrated a reduction in current activity of merely 65.80% for a 20 wt% Ni–CS electrocatalyst, indicating electrochemical stability. In addition, this demonstrates the great potential of candle soot with Ni nanoparticles to be used as a catalyst in practical applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Candle Soot as a Novel Support for Nickel Nanoparticles in the Electrocatalytic Ethanol Oxidation

Mansor,

Budiman,

Zainoodin

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

show abstract

“…A comparative study on the impact of TPW and OLCs as lubricant fillers in a base oil (BO) (G-2 N500) was conducted, and their impact on the rheological and tribological characteristics of the lubricating medium is discussed with experimental evidence. Surprisingly, thorough characterization and testing revealed that TPW could also be used as a very low-cost additive in lubricants with no stringent restrictions on the presence of minor impurities and several other engineering applications …”

Section: Introductionmentioning

confidence: 99%

“…Surprisingly, thorough characterization and testing revealed that TPW could also be used as a very low-cost additive in lubricants with no stringent restrictions on the presence of minor impurities and several other engineering applications. 40 ■ EXPERIMENTAL SECTION Kilogram-Scale Conversion of TPW into OLCs. TPW was procured from a local tire pyrolysis plant at 3 per kg (∼US$0.038/ kg).…”

Section: ■ Introductionmentioning

confidence: 99%

Sustainable Kilogram-Scale Conversion of Tire Pyrolysis Waste into Nanosized Onion-like Carbons with Extraordinary Lubricant-Additive Properties

Ravikiran,

Padya,

Junaid

et al. 2023

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Tire pyrolysis waste (TPW) is converted into highly crystalline and nanosized onion-like carbons (OLCs) on a kilogram scale using an easy and controlled heat treatment. An OLC-dispersed additive-free group-II N500 base oil (BO) sample exhibited increased density, lower viscosity, and reduced internal fluid shear stress compared to BO. The nanoscale of OLC induced a change in the dispersing medium's conformation and free volume, resulting in a non-Einstein-like decrease of viscosity. When used as a lubricant in the four-ball wear test, the OLC-added BO sample caused nanoscale sliding and rolling effects at the points of contact, considerably reducing the coefficient of friction and wear. Surprisingly, TPW also showed similar behavior to OLC. Here, it is elucidated that OLC and TPW are anti-friction and anti-wear nanoadditives in lubricants that reduce friction and wear substantially. TPW could also be used as a low-cost additive in lubricants with no stringent restrictions on the presence of minor impurities and in several other applications. This is expected to ease the economics involved and facilitate the liberal use of OLC in various applications, as discussed in brief in this work.

show abstract

“…Although soot (as carbon black) has been widely used as a component in inks since ancient times [16], a recent review focused on the currently known applications of recycled soot [17] suggests the enormous, still-untapped potential of this abundant waste material. To the soot applications discussed by Uttaravalli et al [17], some other studies on soot as a material for anti-bio-adhesion behavior coatings [18], as super hydrophobic coatings [19], and also some experimental attempts for soot to be used as supercapacitor electrodes [10,20,21] should be added. Functionalized candle soot is used to improve Raman sensing properties for active SERS (surface-enhanced Raman scattering) substrates [22].…”

Section: Introductionmentioning

confidence: 99%

Transforming Chimney Soot via Stochastic Polymerization for Active Electrode Coating

et al. 2023

View full text Add to dashboard Cite

A polymerization procedure is presented to increase the molecular weight of hydrocarbons in household chimney soot without thermal treatment at high temperatures. Pristine soot was subject to chlorination, with half of it treated with magnesium (Mg-plates) to create random-type Grignard reagents (R-Mg-Cl) in diethyl ether media. Mixing the Grignard reagent and the rest of the halogenated soot material created new C-C bonds, thus increasing the molecular weight of the final product. The obtained stochastically polymerized soot (SPS) was investigated using Raman spectroscopy, FTIR spectroscopy and XPS and was subjected to electrochemical testing as an assembled supercapacitor with a KOH electrolyte. Results show significant carbon structure differences due to the chemical procedures and newly created functional groups in the soot. Such functional groups could increase the capacity of supercapacitors, creating pseudo-capacitance by participating in redox reactions. The results also unveiled removing any random contaminations in the pristine soot and obtaining a more uniform final product containing hydrocarbons with longer chains, thus increasing the molecular weight.

show abstract

Sustainable use of recycled soot (carbon black) for the cleaner production of value-added products: A compendium

Cited by 8 publications

References 37 publications

Candle Soot as a Novel Support for Nickel Nanoparticles in the Electrocatalytic Ethanol Oxidation

Candle Soot as a Novel Support for Nickel Nanoparticles in the Electrocatalytic Ethanol Oxidation

Sustainable Kilogram-Scale Conversion of Tire Pyrolysis Waste into Nanosized Onion-like Carbons with Extraordinary Lubricant-Additive Properties

Transforming Chimney Soot via Stochastic Polymerization for Active Electrode Coating

Contact Info

Product

Resources

About