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Carboxyl Multi Walled Carbon Nanotube

  • Purity: >95wt%;
  • -COOH content: 2.56wt%;
  • Inner diameter: 3-5nm;
  • Outer Diameter: 8-15nm;
  • Length: 50um; Specific Surface Area: >233 m2/g;
  • ASH:<1.5wt%;
  • Bulk Density: 0.15g/cm3;
  • True Density: 2.1g/cm3;
  • EC: >100S/cm;
  • Black powder.

Product Overview

Hiyka's Carboxyl Multi-Walled Carbon Nanotubes, Variant 2, represent a breakthrough in nanomaterial engineering, optimized for exceptional performance in a diverse array of applications. This variant is distinguished by its precise carboxyl (–COOH) functionalization, designed to enhance dispersion, chemical reactivity, and material compatibility. Suited for cutting-edge developments in composite materials, electronics, energy technologies, and more, Variant 2 MWCNTs are engineered to meet the stringent demands of both industry and research, driving innovation with their unique combination of mechanical strength, electrical conductivity, and functional surface chemistry.

Key factor

  • Optimized Carboxyl Functionalization: Variant 2 features an enhanced level of carboxyl groups, ensuring superior dispersion in various solvents and matrices for uniform application.
  • Increased Chemical Reactivity: Facilitates covalent bonding and functionalization, allowing for customization and integration into complex material systems.
  • Exceptional Mechanical Strength: Preserves the intrinsic high tensile strength and durability of MWCNTs, vital for reinforcing advanced composite materials.
  • High Electrical Conductivity: Maintains outstanding electrical properties, making it ideal for conductive applications in electronics and energy storage.


  • Composite Material Enhancement: Boosts the performance of polymers, resins, and ceramics, providing increased strength, conductivity, and thermal resistance.
  • Electronics & Conductive Inks: Ideal for enhancing the conductivity of electronic circuits, sensors, and flexible electronics, alongside use in advanced conductive inks.
  • Energy Storage Innovations: Improves the efficiency and capacity of batteries and supercapacitors, contributing to more sustainable energy solutions.
  • Biomedical Applications: Supports advancements in drug delivery, tissue engineering, and biosensors, leveraging the carboxyl functionalization for biological compatibility.


  • Enhanced Performance: Delivers a combination of mechanical, electrical, and thermal properties optimized for high-performance applications.

  • Material Compatibility: Improved dispersion and reactivity make Variant 2 MWCNTs easy to integrate into a wide range of materials and composites.

  • Customization and Innovation: The functionalized surface supports extensive modifications, enabling new possibilities in material science and engineering.

  • Quality and Consistency: Manufactured under stringent conditions to ensure high purity, consistent functionality, and reliable performance.

  • Eco-Friendly Potential: Supports the development of sustainable materials and technologies, contributing to environmental protection efforts.


  • Shen J., Huang W., Wu L., Hu Y. and Ye M. 2007 Study on amino-functionalized multiwalled carbon nanotubes 464 151-156
  • Osler K., Twala N., Oluwasina O. O. and Daramola M. O. 2017 Synthesis and Performance Evaluation of Chitosan / Carbon nanotube ( Chitosan / MWCNT ) Composite Adsorbent for Post- combustion Carbon Dioxide Capture Energy Procedia 114 2330-2335 November 2016
  • Rosca I. D. 2005 Oxidation of multiwalled carbon nanotubes by nitric acid 43 3124-3131
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