Self-Supported Carbon Electrodes with a Carbon Membrane and Co<sub>3</sub>O<sub>4</sub> Nanosheets for High-Performance Enzymeless Glucose Detection and Supercapacitors
Zhaohui Yin, Zhaohui Yin, Sisi He, Yuwei Li, Wenjing Dai, Hong Wang, Runhe He, Kui Tang, Yiming Xiao, Songbo Wang, Jian Gao, Lei Zhang, Jianxin Li, Na Tang, Zhen Yin, Zhen Yin
Abstract
Self-supported carbon electrodes have been intensively explored in the fields of materials chemistry, energy storage, and conversion due to the unique features of carbon materials. Herein, we report a facile strategy to construct a freestanding carbon membrane (CM) electrode consisting of a microfiltration CM and two-dimensional (2D) ultrathin Co 3 O 4 nanosheets (NSs), which is successfully applied as an efficient and binder-free carbon electrode in the electrochemical applications of enzyme-free glucose detection and supercapacitors. Owing to the inherent structural merits, including the three-dimensional (3D) interconnected porous network in the membrane, structural integrity, high conductivity, and the well-dispersed and in situ growth of 2D Co 3 O 4 NSs, the obtained Co 3 O 4 NSs/CM demonstrated superior electrochemical performances and excellent long-term operation stability. Our present work paves the path to fabricate low-cost and efficient carbon electrodes with a rational structure design for multifunctional materials.