Electrochemical Synthesis of 3D Porous Co(OH)2/ErGO Nanoflake for High-Performance Supercapacitor and Non-Enzymatic Glucose Sensor
- https://doi.org/10.2991/iceesd-18.2018.76How to use a DOI?
- supercapacitors; graphene; Co(OH)2; glucose sensor
Co(OH)2 is a promising electrochemical material owing to its high theoretical specific capacitance, low cost and eco-friendliness. However, the poor conductivity hinders its application. In this work, 3D porous Co(OH)2/ErGO nanoflake vertically grown on the surface of Ni foam (NF) through a facile two-step electrodeposition approach, avoiding the need for binders and conducting agents. When used for supercapacitors (SCs), the Co(OH)2/ErGO/NF electrode exhibits a high specific capacitance of 857.1 F g-1 at a current density of 2 A g-1, and a favorable cycling stability with 85.0% retention even at 12 A g-1 after 2000 cycles. Additionally, serving as a non-enzymatic sensor, the 3D Co(OH)2/ErGO/NF electrode exhibits remarkable electrocatalytic activity towards glucose oxidation with a high sensitivity of 10.2 mA mM-1 cm-2. Owing to its favorable electrochemical performance, the 3D Co(OH)2/ErGO/NF electrode with porous structure has great potential applications in the fields of electrochemical SCs and non-enzymatic glucose sensors.
- © 2018, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Yu Yang AU - Lei Wang PY - 2018/05 DA - 2018/05 TI - Electrochemical Synthesis of 3D Porous Co(OH)2/ErGO Nanoflake for High-Performance Supercapacitor and Non-Enzymatic Glucose Sensor BT - Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018) PB - Atlantis Press SP - 428 EP - 434 SN - 2352-5401 UR - https://doi.org/10.2991/iceesd-18.2018.76 DO - https://doi.org/10.2991/iceesd-18.2018.76 ID - Yang2018/05 ER -