ArticleNanomaterials (Basel, Switzerland)2021
Effects of Functionalization in Different Conditions and Ball Milling on the Dispersion and Thermal and Electrical Conductivity of MWCNTs in Aqueous Solution.
Article in Nanomaterials (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed.
- Fabrication of methotrexate conjugated multi-walled carbon nanotubes for the evaluation of cytotoxic potential at biochemical and molecular level modulatingRSC advances · 2026Article
- Advances and Outlooks for Carbon Nanotube-Based Thermoelectric Materials and Devices.Advanced materials (Deerfield Beach, Fla.) · 2025Review
- Facile development of carbon nanotube (CNT)-based flexible thermoelectric materials for energy-harvesting applications.RSC advances · 2025Article
- Boosting thermoelectric performance of single-walled carbon nanotubes-based films through rational triple treatments.Nature communications · 2024Article
- A Multifunctional Cementitious Composite for Pavement Subgrade.Materials (Basel, Switzerland) · 2024Article
- Study on the Characteristics of the Dispersion and Conductivity of Surfactants for the Nanofluids.Nanomaterials (Basel, Switzerland) · 2022Article
- Article
- Multiscale Innovative Materials and Structures (MIMS).Nanomaterials (Basel, Switzerland) · 2021Article
- Effect of MWCNTs Functionalization on Thermal, Electrical, and Ammonia-Sensing Properties of MWCNTs/PMMA and PHB/MWCNTs/PMMA Thin Films Nanocomposites.Nanomaterials (Basel, Switzerland) · 2021Article
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5 authors.
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Abstract
In this work, the effects of a functionalization method involving different conditions and milling processes on the dispersion and thermal and electrical conductivity of multiwalled carbon nanotubes were studied. The surfaces of MWCNTs were modified using a mixture of sulfuric and nitric acid as an acid treatment and potassium persulfate and sodium hydroxide as an alkaline treatment to achieve more hydrophilic MWCNTs. The morphological and structural investigations were carried out using transmission electron microscopy and Fourier transform infrared spectroscopy. Furthermore, the dispersion characteristics and thermal and electrical conductivity of the as-prepared water-based nanofluids were measured. As a result, the dispersion characteristics revealed that the best dispersion and stability results were obtained for alkaline-treated MWCNTs using potassium persulfate and sodium hydroxide. The thermophysical study using a thermal conductivity analyzer exhibited that the thermal conductivity of the pristine MWCNT nanofluid (0.1 wt%) was enhanced from 603.5 to 610.4 mW/m·K and the electrical conductivity of the raw MWCNT nanofluid was increased from 16.2 to 125.8 μS/cm at 25 °C after alkaline treatment and milling processes, which were performed using planetary ball milling. Regarding the overall results, the milling process and mild alkaline oxidation process are more environmentally friendly, effective, and convenient for the functionalization of CNTs, without requiring any organic solvents or strong acids.
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