Flash Joule Heating Machine: Fast Joule heat helps transform methane pyrolysis carbon black into high-performance electrode materials

Similarity of technical principles and applications

High Temperature Thermal Shock and Material Modification: The team of Prof. Liu Haifeng and Associate Prof. Shen Zhongjie modified methane pyrolytic carbon black using ultrafast Joule heating technology, which realized the ordering of the crystal structure of the carbon black and the modulation of the pore structure by heating it rapidly under the conditions of 1400°C, 1700°C and 2000°C. Flash Joule Heating Machine (FJH) The Flash Joule Heating Machine (FJH) is also capable of rapidly heating materials to high temperatures, triggering the reorganization of the internal structure of the material and the formation of defects, and realizing the precise control of the microstructure of the material. Both utilize the intense reaction conditions brought about by high-temperature thermal shock to promote efficient modification of the target material.

Rapid heating and property optimization: FJH achieves efficient modification of carbon black through rapid heating, optimizes its crystal and pore structure, and significantly improves electrochemical properties such as conductivity and specific capacitance, etc. FJH is also commonly used for rapid heating and property optimization in the preparation of other materials, for example, in the preparation of carbon-based materials, such as graphene, the defect density and electronic structure of the material can be adjusted through rapid heating, thus optimizing its conductivity and electronic structure, and thus optimizing its conductivity. structure of the material, thus optimizing its electrical conductivity and chemical activity.

Complementary technological advantages

High efficiency and low cost: Ultra-fast Joule heat technology can complete the modification of carbon black in a short period of time, which is highly efficient, while FJH technology, with its rapid heating and cooling, can also significantly shorten the time of material preparation, improve the production efficiency and reduce the production cost. Combined use of the two can further enhance the efficiency and performance of material preparation, reduce production costs, and provide technical support for the large-scale production of high-performance supercapacitor electrode materials.

Environmental friendliness: Ultra-fast Joule heat technology avoids the long time energy consumption and environmental pollution problems in the traditional high temperature treatment process, and does not require the use of solvents or reaction gases in the material synthesis process.FJH technology also does not require the use of solvents or reaction gases and has low energy consumption, which is in line with the current requirements of environmental protection and sustainable development.

Directions for future research and applications

Further optimization of material properties: FJH technology can be applied to the subsequent treatment of carbon black treated by ultra-fast Joule heat technology to optimize the crystal structure and defect distribution of carbon black and improve its electrochemical properties and stability through further rapid heat treatment. For example, more uniform defect distribution and stronger metal-carrier interactions are realized by FJH technology to enhance the sintering resistance and long-term stability of carbon black.

Development of new electrode materials: Combining the rapid synthesis capability of FJH technology and the structure modulation advantage of ultrafast Joule heat technology, explore the development of new types of supercapacitor electrode materials. For example, try to put other types of carbon materials or composites through the FJH technology for rapid heat treatment and structure optimization, and then use the ultra-fast Joule heating technology for modification to achieve higher performance and more excellent application effects.

Optimization and standardization of process parameters: In-depth study of the synergistic mechanism of FJH technology and ultra-fast Joule heating technology in the process of material preparation, and optimization of process parameters, such as heating temperature, heating time, current density, and so on. Establish a standardized process flow to ensure the stability and consistency of the material performance, and provide a reliable technical guarantee for the commercial production and application of supercapacitor electrode materials.

Electrospinning Nanofibers Article Source:

https://doi.org/10.1021/acs.langmuir.4c03818