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High-temperature thermal shock and material modification: Prof. Yang Li's team synthesized ruthenium-doped copper oxide catalysts (RuSA@Cu₂₊₁O) by fast Joule heating method, which realized rapid preparation of copper oxides and ruthenium doping through instantaneous high-temperature thermal shock, and optimized the local electronic structure and distribution of oxygen vacancies of the catalysts.Flash Joule Heating The Flash Joule Heating Machine (FJH) technology also rapidly heats the material to high temperatures, triggering the reorganization of the internal structure 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 performance optimization: rapid Joule heating achieves efficient synthesis of catalysts through rapid heating, optimizes their electronic structure and oxygen vacancy distribution, and significantly improves the catalytic performance of nitrate reduction (NO3RR).FJH technology is also commonly used for rapid heating and performance optimization in other material preparation, for example, in the preparation of carbon-based materials, such as graphene, through rapid heating, it is possible to regulate the material's defect density and electronic structure, thus optimizing its conductivity and chemical activity.
High efficiency and low cost: Fast Joule Heating can complete the preparation of catalysts in a very short time, which is highly efficient, while FJH technology, with its rapid heating and cooling, also significantly shortens the material preparation time, improves the production efficiency and reduces the production cost. The combination of the two can further enhance the efficiency and performance of material preparation, reduce production costs, and provide technical support for large-scale production of high-performance catalysts.
Environmental friendliness: Fast Joule Heating avoids the long time energy consumption and environmental pollution problems in the traditional high temperature treatment process.FJH technology does not need to use solvents or reaction gases in the material synthesis process and has low energy consumption, which is in line with the current requirements of environmental protection and sustainable development.
Further optimization of material properties: FJH technology can be applied to the subsequent treatment of catalysts treated by the fast Joule heating method to optimize the crystal structure and defect distribution of catalysts and improve their catalytic activity and stability through further fast heat treatment. For example, more uniform defect distribution and stronger metal-carrier interactions are achieved by FJH technology, enhancing the catalyst's sintering resistance and long-term stability.
Development of novel catalysts: Combining the rapid synthesis capability of FJH technology and the structure modulation advantage of fast Joule heating method, explore the development of novel catalysts. For example, try to put other types of metal oxides or composite materials through FJH technology for rapid heat treatment and structure optimization, and then synthesize them using fast Joule heating method to achieve higher performance and better application effect.
Optimization and standardization of process parameters: In-depth study of the synergistic mechanism between FJH technology and fast Joule heating method in the process of material preparation, and optimization of process parameters, such as heating temperature, heating time and current density. A standardized process flow is established to ensure the stability and consistency of the material properties and provide a reliable technical guarantee for the commercial production and application of catalysts.
Electrospinning Nanofibers Article Source:
https://doi.org/10.1002/adfm.202417486
