Fabrication of composited electrode based on coconut activated carbon and MCNTs for ionic electrosorption

Authors

  • Huynh Le Thanh Nguyen
  • Tran Thanh Nhut
  • Ho Thi Thanh Nguyen
  • Le Viet Hai
  • Nguyen Thai Hoang

DOI:

https://doi.org/10.51316/jca.2023.010

Abstract

Activated carbon (AC) derived from coconut shells (Tra Bac Company, Vietnam) is a promising candidate material for the capacitance deionization (CDI) technology due to their low-cost, abundance and its high surface area. In our work, the composites AC/MCNTs electrodes were prepared using the polyvinyl alcohol (PVA) and glutaric anhydride (GA) as cross-linking binder. The morphological properties were investigated by scanning electron microscopy (SEM). The electrochemical properties were performed by electrochemical measurements such as: cyclic voltammetry (CV), cyclic charge – discharge (CDC). The composite electrode with 1% CNTs (wt.) showed encouragingly a specific capacitance of 94.0 F/g and a salt absorption capacity of 11.2 mg/g with stable performance.

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Published

30-03-2023

Issue

Vol. 12 No. 1 (2023): March