High performance MXene supported Gold Nanoparticles-based 3D Printed Anode for Non-Enzymatic Biofuel Cell

Abstract

3D printing is a facile processing technique applied towards developing bioelectrodes for electrochemical energy applications as well. However, 3DP is yet to be explored to fabricate non-enzymatic biofuel cells (NEBFC). In this work, a novel non-enzymatic 3DP anode has been fabricated by using gold nanoparticles as catalyst and MXene as support material to enhance the electron efficacy. The catalyst and support were electrodeposited on the 3DPG electrode using optimal parameters. The 3DPG/MXene/Au anode for NEBFC was successfully studied by electrochemical characterization for efficient biocatalysis of glucose producing a power density of $18.2\ \mu \mathrm{W}/\text{cm}^{2}$. The results show that the MXene support and gold catalyst enhanced the performance two-fold than anode with only metallic catalyst. These electrodes pave way for development of simple and functional anode for various electrochemical applications.