Rapid preparation of a self-adhesive PAA ionic hydrogel using lignin sulfonate–Al³⁺ composite systems for flexible moisture-electric generators

Abstract

Hydrogels have great potential in flexible moisture-induced electricity generators (MEGs) due to their excellent water-capturing capability and ionic conductivity. However, conventional hydrogels face challenges in prolonged heating for preparation, the...

Moisture-Enabled Electric Generators Based on Electrospinning Silk Fibroin/Poly(ethylene oxide) Film Impregnated with Gradient-Structured Sericin

“…(I) The degree of ionization of SS-MEG changes and the rate of ion migration accelerates with increased water absorption. (II) Ions exhibit directional movement when subjected to a humidity gradient. , The resultant increase in the H + movement is significantly elevated in the short-circuit current of the device. An excessive content of grafted sericin resulted in low porosity, decreasing the rate of H + migration. , …”

High‐Performance Fully Stretchable Moist‐Electric Generator

“…e) A comparison of the output performance and stretchable performance of the SMEG with report MEGs. [ 24,28,36–43 ]…”

“…e) A comparison of the output performance and stretchable performance of the SMEG with report MEGs. [24,28,[36][37][38][39][40][41][42][43] hydrogel was first investigated (Figure S7, Supporting Information). As shown in Figure 2e, without adding any LiCl, a pure hydrogel can generate a voltage and current of ≈0.1 V and 3 μA, this could be attributed to the migration of protons dissociated from agarose (AG) induced by water evaporation, and the current output was increased with the increase of ion concentration because of the higher charge density and the lower resistance.…”

“…d) A continuous recording of open-circuit voltage and short-circuit current of an FSMENG for 9000 s (25 ± 2 °C, RH 40 ± 5%). e) A comparison of the output performance and stretchable performance of the SMEG with report MEGs [24,28,[36][37][38][39][40][41][42][43].…”

Easy hydrogel preparation with high-purity lignin separated from DES pretreatment with excellent performance for moisture-electric generators and motion sensors

“…Moisture-induced electricity generators (MEGs) harness atmospheric moisture to generate renewable electric energy anytime, anywhere. [11][12][13] These green energy harvesters use hygroscopic materials containing polar and dissociable groups. By adsorbing and interacting with water molecules, they create mobile ions within the polar groups.…”