2023
DOI: 10.1002/advs.202300750
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An Efficient Ambient‐Moisture–Driven Wearable Electrical Power Generator

Abstract: Existing devices for generating electrical power from water vapor in ambient air require high levels of relative humidity (RH), cannot operate for prolonged periods, and provide insufficient output for most practical applications. Here a heterogeneous moisture-driven electrical power generator (MODEG) is developed in the form of a free-standing bilayer of polyelectrolyte films, one consisting of a hygroscopic matrix of graphene oxide(GO)/polyaniline(PANI) [(GO)PANI] and the other consisting of poly(diallyldime… Show more

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Cited by 17 publications
(6 citation statements)
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“…Moreover, the HMX@PANI composite is slightly positively charged through friction with the stainless steel chute, which could be attributed to the presence of PANI with a strong electron donor [ 32 , 48 ]. In this context, HMX@PANI composites possess a lower electrostatic accumulation capacity, which could be attributed to two factors: on the one hand, the overlapping orbitals along the polymer backbone contribute to the delocalization of electrons that present twisted polymer chains around the injected charge carriers, leading to the formation of polaritons and their directional movement and resulting in the excellent electrical conductivity of product [ 21 , 49 ]; on the other hand, a continuous conductive matrix might be formed by PANI chains into these powders and enhance the electrostatic transfer process further [ 50 ].…”
Section: Resultsmentioning
confidence: 99%
“…Moreover, the HMX@PANI composite is slightly positively charged through friction with the stainless steel chute, which could be attributed to the presence of PANI with a strong electron donor [ 32 , 48 ]. In this context, HMX@PANI composites possess a lower electrostatic accumulation capacity, which could be attributed to two factors: on the one hand, the overlapping orbitals along the polymer backbone contribute to the delocalization of electrons that present twisted polymer chains around the injected charge carriers, leading to the formation of polaritons and their directional movement and resulting in the excellent electrical conductivity of product [ 21 , 49 ]; on the other hand, a continuous conductive matrix might be formed by PANI chains into these powders and enhance the electrostatic transfer process further [ 50 ].…”
Section: Resultsmentioning
confidence: 99%
“…Moist-electric nanogenerators can convert humidity variations into electrical energy output without the requirement of external energy input, making them suitable for selfpowered moist-electric humidity sensors (MEHS) [112,113]. Tai et al prepared the MEHS by using MXene/NbC/sodium alginate composite films via the electrospinning method [110].…”
Section: Fiber-based Respiratory Gas Sensormentioning
confidence: 99%
“…The development of new, green, and sustainable energy sources is in demand with the decline of fossil fuels and the increase of environmental pollution. Moisture-enabled electric generators (MEGs), a class of green-energy generators, convert moisture from the air into electricity and have attracted immense attention. , MEGs were first reported in 2015 and have made significant progress since then. , The MEGs that are produced, such as graphene, metal oxide nanomaterials, biofibers, and polymers, have excellent properties. , The massively integrated design allows the MEGs to achieve output voltages of up to 1000 V . It can be used to drive off-the-shelf electronic devices such as calculators, LEDs, watches, and more. …”
Section: Introductionmentioning
confidence: 99%