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High-temperature thermal shock and material modification: the team of researcher Lei Zheng and Jun Zhang used the intra-volume Joule heating technology to realize efficient and uniform heating of non-precious-metal Ni-based particulate catalysts in SiSiC foams through direct Joule heating, which significantly improved the conversion rates of methane and CO₂. The Flash Joule Heating Machine (FJH) technology is similarly capable of rapidly heating the The Flash Joule Heating Machine (FJH) technology also rapidly heats materials to high temperatures, triggering the reorganization of the internal structure and the formation of defects, and realizing the precise regulation of the microstructure of materials. 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: Intra-volumetric Joule heating technology achieves efficient heating and optimization of the reaction performance of catalysts through rapid heating, optimizing their temperature distribution and reaction efficiency.FJH technology is also commonly used for rapid heating and performance 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 tuned through rapid heating, thus optimizing its conductivity and chemical activity.
High efficiency and low cost: Intra-volumetric Joule Heating (IVJH) technology can complete the heating of catalysts in a short period of time, which is highly efficient, while FJH technology, also characterized by its rapid heating and cooling, dramatically shortens the time of material preparation, 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: the volumetric internal Joule heating technology avoids the high energy consumption and environmental pollution problems in the traditional external combustion heating process. the FJH technology does not require the use of solvents or reaction gases during material synthesis 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 in-volume Joule heating technology to optimize the crystal structure and defect distribution of catalysts and improve their catalytic activity and stability through further rapid 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 in-volume Joule heating technology, explore the development of novel catalysts. For example, try to put other types of metal oxides or composites through the FJH technology for rapid heat treatment and structure optimization, and then use the in-volume Joule heating technology for heating, to achieve higher performance and more excellent application effects.
Optimization and standardization of process parameters: In-depth study of the synergistic mechanism between FJH technology and volumetric in-volume Joule heating technology 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 the catalysts.
Electrospinning Nanofibers Article Source:
https://doi.org/10.1016/j.cej.2024.158291
