Harvesting electricity from ubiquitous moisture offers the promise of clean power for self-sustained systems.Despite extensive efforts,achieving high-power electricity generation remains challenging.Existing studies m...Harvesting electricity from ubiquitous moisture offers the promise of clean power for self-sustained systems.Despite extensive efforts,achieving high-power electricity generation remains challenging.Existing studies mimicking electric eels’electrogenesis to enhance their electrical performance focused on the two-membrane structure that linearly adds up the voltage,but their current output was either transient or limited to microamperes,because of the large resistance for ion diffusing across material interfaces.Here,we report an electrocyte-inspired moisture-driven electricity generator(EMEG)made from an interphase-mediated Janus film.The continuous interphase significantly alleviates the ion migration resistance,boosting the current output to 150μA and sustaining the voltage of 0.8 V continuously for more than 1000 h.We also show that integrated EMEGs were easily assembled to self-powered smart watch for emergency rescue.Furthermore,the integrated EMEGs achieved selfsustained and moisture-powered water splitting with a steady hydrogen production.Our results provide a rational for bio-inspired designs toward green and sustained power generation.展开更多
基金National Key R&D Programof China,Grant/Award Number:2022YFB4602401National Natural Science Foundation of China,Grant/Award Numbers:52475294,52105174+2 种基金State Key Laboratory of High-Performance PrecisionManufacturing,Grant/Award Number:ZY202404Fundamental Research Funds for the Central Universities,Grant/Award Number:DUT24YG133Canada Research Chairs Program。
文摘Harvesting electricity from ubiquitous moisture offers the promise of clean power for self-sustained systems.Despite extensive efforts,achieving high-power electricity generation remains challenging.Existing studies mimicking electric eels’electrogenesis to enhance their electrical performance focused on the two-membrane structure that linearly adds up the voltage,but their current output was either transient or limited to microamperes,because of the large resistance for ion diffusing across material interfaces.Here,we report an electrocyte-inspired moisture-driven electricity generator(EMEG)made from an interphase-mediated Janus film.The continuous interphase significantly alleviates the ion migration resistance,boosting the current output to 150μA and sustaining the voltage of 0.8 V continuously for more than 1000 h.We also show that integrated EMEGs were easily assembled to self-powered smart watch for emergency rescue.Furthermore,the integrated EMEGs achieved selfsustained and moisture-powered water splitting with a steady hydrogen production.Our results provide a rational for bio-inspired designs toward green and sustained power generation.
