Thermoenhanced osmotic power generator via lithium bromide and asymmetric sulfonated poly(ether ether ketone)/poly(ether sulfone) nanofluidic membrane

Abstract Osmotic energy, existing between solutions with different concentrations, is a sustainable and ecofriendly resource for solving energy issues. However, current membrane-based osmotic conversion technologies focus on electricity generation from an “open” system by directly mixing salt (NaCl) at room temperature. For the integrated utilization of thermal higher power output performance, we demonstrate thermoenhanced employing highly soluble lithium bromide (LiBr) solutions, asymmetric sulfonated poly(ether ether ketone)/poly(ether sulfone) (SPEEK/PES) membranes, LiMn 2 O 4 /carbon nanotube (LMO/CNT) electrodes. The thin top layer this heat-resistant membrane contains hydrophilic groups (i.e., in SPEEK) that are beneficial ion-selective transport. effect each solution investigated, can be improved regulating heat gradient. density ~16.50 W/m coupling temperature gradient (30 °C). This work step forward promoting performance assistance provides basis closed-loop regenerated other forms. Moreover, external field-osmotic hybrid shows powerful potential harvesting field.