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Updated: Jan 25, 2026

Towards Biomimicking Wood: Fabricated Free-standing Films of Nanocellulose, Lignin, and a Synthetic Polycation
Published on: June 17, 2014
Tailoring of Aqueous-Based Carbon Nanotube⁻Nanocellulose Films as Self-Standing Flexible Anodes for Lithium-Ion
Hoang Kha Nguyen1, Jaehan Bae2, Jaehyun Hur3
1Department of Chemical and Biological Engineering, Gachon University, Seongnam-si, Gyeonggi-do 13120, Korea. hoangkhahc11dk@gmail.com.
Abstract:
An easy and environmentally friendly method was developed for the preparation of a stabilized carbon nanotube-crystalline nanocellulose (CNT-CNC) dispersion and for its deposition to generate self-standing CNT-CNC composite films. The composite films were carbonized at different temperatures of 70 °C, 800 °C, and 1300 °C. Structural and morphological characteristics of the CNT-CNC films were investigated by X-ray diffraction (XRD), Raman spectroscopy, and scanning electron microscopy (SEM), which revealed that the sample annealed at 800 °C (CNT-CNC800) formed nano-tree networks of CNTs with a high surface area (1180 m2·g-1) and generated a conductive CNC matrix due to the effective carbonization. The carbonized composite films were applied as anodes for lithium-ion batteries, and the battery performance was evaluated in terms of initial voltage profile, cyclic voltammetry, capacity, cycling stability, and current rate efficiency. Among them, the CNT-CNC800 anode exhibited impressive electrochemical performance by showing a reversible capacity of 443 mAh·g-1 at a current density of 232 mA·g-1 after 120 cycles with the capacity retention of 89% and high rate capability.
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