TY - JOUR TI - High-performance hydrogel membranes with superior environmental stability for harvesting osmotic energy AU - Wu, C AU - Wu, R AU - Zeng, H AU - Yao, C AU - Zhou, J AU - Li, G AU - Wang, J T2 - Chemical Engineering Journal AB - A collection of innovative nanofluidic systems has been developed to harness Gibbs free energy and convert it into osmotic energy. Nevertheless, these systems frequently encounter challenges such as low output power density, inadequate mechanical stability, and diminished performance in extreme conditions. In this work, we utilized a simple thermal polymerization method to fabricate a charged phytic acid (PA)–acrylic acid (AA)–3-sulfopropyl acrylate potassium salt (SPAK) hydrogel (PASH) membrane with anti-drying and anti-freezing properties, alongside mechanical stability. Using a silicon window with a testing area of 3 × 10−8 m2, a high power density of 30.94 W/m2 was achieved in artificial seawater and river water environments (0.5/0.01 M NaCl). Notably, an even higher power density of 103.9 W/m2 was attained in artificial saline lake and river water environments (5/0.01 M NaCl). Meanwhile, the PASH membrane demonstrated outstanding performance in low temperatures and various acidic and alkaline environments, offering the potential for osmotic power generation in extreme conditions. This work provides essential theoretical foundations and experimental evidence for the development of sustainable osmotic energy conversion technologies, contributing to the advancement and innovation in the field of blue osmotic energy. DA - 2024/11// PY - 2024 PB - Elsevier VL - 499 SP - 156681 UR - https://www.sciencedirect.com/science/article/pii/S1385894724081725 DO - 10.1016/j.cej.2024.156681 LA - English KW - Salinity Gradient KW - Lab Data KW - Materials KW - Performance ER -