Synthesis of graphene aerogel/carbon nanotube/thiourea composite by mild chemical reduction method in order to enhance the electrochemical properties
Source abstract
Abstract
Recent advancements in assembling graphene into 3D structures have attracted significant attention due to their high surface area, excellent conductivity, and remarkable specific capacitance for energy storage applications. This study presents the synthesis of a novel graphene aerogel (GA)/carbon nanotube (CNT)/thiourea (Tu) composite via a mild chemical reduction method using ascorbic acid as a green reducing agent. In this composite, Tu acts as both a co-reducingandN/S co-doping agent, while CNTs function as cross-linking and conductivity-enhancing components. The optimized mass ratio of GO:CNT:Tu at 4:1:2 yields a high specific capacitance of 339 F·g⁻1at 0.5 A·g⁻1and a minimal IR drop of 0.02 V. Furthermore, the composite exhibits excellent cycling stability, with 82% capacitance retention after 5000 charge–discharge cycles at 2 A·g⁻1. This novel synthesis strategy and material design offer a promising, sustainable approach for developing high-performance supercapacitor electrodes.Graphical abstract
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Supercapacitor Materials and Fabrication · Graphene research and applications · Advancements in Battery Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (60)
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