fig6

Figure 6. (A) Experimental setup for electrothermal desorption and cyclic adsorption-desorption of toluene. Reprinted with permission from Ref.^[39]. Copyright 2014, American Chemical Society; (B) Schematic structure of a flexible MnO₂-CC electrothermal heater with a Cu electrode and its effect on HCHO purification. Reprinted with permission from Ref.^[46]. Copyright 2019, Elsevier; (C) Sorbent-coated carbon fibers and WEDAC modules for direct air capture: CO₂ desorption performance during TSA and ETSA cycles and electrothermal heating behavior revealed by thermal imaging. Reprinted with permission from Ref.^[49]. Copyright 2023, Elsevier; (D) Schematic illustration of CO₂ capture from air using a CNF-based filter and its regeneration via Joule heating powered by renewable energy. Reprinted with permission from Ref.^[48]. Copyright 2025, The American Association for the Advancement of Science. WEDAC: Wind-driven electric adsorption capture; TSA: temperature swing adsorption; ETSA: electrically-driven temperature swing adsorption; CNF: carbon nanofiber; DC: direct current; IR: infrared; PV: photovoltaic.