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Flash Joule heating for synthesis, upcycling and remediation
Electric heating methods are being developed and used to electrify industrial applications and lower their carbon emissions. Direct Joule resistive heating is an energy-efficient electric heating technique that has been widely tested at the bench scale and could replace some energy-intensive and carbon-intensive processes. In this Review, we discuss the use of flash Joule heating (FJH) in processes that are traditionally energy-intensive or carbon-intensive. FJH uses pulse current discharge to rapidly heat materials directly to a desired temperature; it has high-temperature capabilities (>3,000 °C), fast heating and cooling rates (>102 °C s−1), short duration (milliseconds to seconds) and high energy efficiency (~100%). Carbon materials and metastable inorganic materials can be synthesized using FJH from virgin materials and waste feedstocks. FJH is also applied in resource recovery (such as from e-waste) and waste upcycling. An emerging application is in environmental remediation, where FJH can be used to rapidly degrade perfluoroalkyl and polyfluoroalkyl substances and to remove or immobilize heavy metals in soil and solid wastes. Life-cycle and technoeconomic analyses suggest that FJH can reduce energy consumption and carbon emissions and be cost-efficient compared with existing methods. Bringing FJH to industrially relevant scales requires further equipment and engineering development.
Flash Joule heating is an energy-efficient electric heating method that is applied to materials synthesis, waste upcycling and environmental remediation. This Review discusses the fundamentals and use of flash Joule heating, its scalability and its sustainability compared with industrially used processes.
Flash Joule heating (FJH) uses pulsed intense electric discharge to rapidly and directly heat materials for a short duration.
Carbon materials, such as graphene, and inorganic materials can be synthesized using FJH and a variety of feedstocks.
Waste can be managed and upcycled using FJH techniques, which are more energy efficient than conventional methods such as furnace-based heating.
Remediation of soil contaminated with heavy metals and organic pollutants is feasible at laboratory scales with FJH.
Life-cycle assessments suggest that compared with various other synthesis and waste management methods, FJH has reduced energy consumption and carbon emissions, especially when using waste feedstocks; FJH also appears to be cost-effective based on preliminary technoeconomic analyses.
FJH is largely demonstrated at the bench scale, but scale-up of FJH is now being demonstrated on an industrial scale for materials production.
Flash Joule heating for synthesis, upcycling and remediation
Electric heating methods are being developed and used to electrify industrial applications and lower their carbon emissions. Direct Joule resistive heating is an energy-efficient electric heating technique that has been widely tested at the bench scale and could replace some energy-intensive and carbon-intensive processes. In this Review, we discuss the use of flash Joule heating (FJH) in processes that are traditionally energy-intensive or carbon-intensive. FJH uses pulse current discharge to rapidly heat materials directly to a desired temperature; it has high-temperature capabilities (>3,000 °C), fast heating and cooling rates (>102 °C s−1), short duration (milliseconds to seconds) and high energy efficiency (~100%). Carbon materials and metastable inorganic materials can be synthesized using FJH from virgin materials and waste feedstocks. FJH is also applied in resource recovery (such as from e-waste) and waste upcycling. An emerging application is in environmental remediation, where FJH can be used to rapidly degrade perfluoroalkyl and polyfluoroalkyl substances and to remove or immobilize heavy metals in soil and solid wastes. Life-cycle and technoeconomic analyses suggest that FJH can reduce energy consumption and carbon emissions and be cost-efficient compared with existing methods. Bringing FJH to industrially relevant scales requires further equipment and engineering development.
Flash Joule heating is an energy-efficient electric heating method that is applied to materials synthesis, waste upcycling and environmental remediation. This Review discusses the fundamentals and use of flash Joule heating, its scalability and its sustainability compared with industrially used processes.
Flash Joule heating (FJH) uses pulsed intense electric discharge to rapidly and directly heat materials for a short duration.
Carbon materials, such as graphene, and inorganic materials can be synthesized using FJH and a variety of feedstocks.
Waste can be managed and upcycled using FJH techniques, which are more energy efficient than conventional methods such as furnace-based heating.
Remediation of soil contaminated with heavy metals and organic pollutants is feasible at laboratory scales with FJH.
Life-cycle assessments suggest that compared with various other synthesis and waste management methods, FJH has reduced energy consumption and carbon emissions, especially when using waste feedstocks; FJH also appears to be cost-effective based on preliminary technoeconomic analyses.
FJH is largely demonstrated at the bench scale, but scale-up of FJH is now being demonstrated on an industrial scale for materials production.
Flash Joule heating for synthesis, upcycling and remediation
Nat. Rev. Clean Technol.
Eddy, Lucas (author) / Wyss, Kevin M. (author) / Tiwary, Chandra Sekhar (author) / Tour, James M. (author)
Nature Reviews Clean Technology ; 1 ; 32-54
2025-01-01
23 pages
Article (Journal)
Electronic Resource
English
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