All day Limnobium laevigatum inspired nanogenerator self-driven via water evaporation

Dao, Van‐Duong; Vu, Ngoc Hung; Choi, Ho‐Suk

doi:10.1016/j.jpowsour.2019.227388

Cited by 122 publications

(67 citation statements)

References 22 publications

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“…A CNT film can also continuously generate electricity in a water flow with the assistance of irradiation of sunlight ( Figure 5f). [92,114] Other materials such as vertical silicon nanowire arrays can also generate electricity with impressive efficiency based on the streaming current effect (Figure 5g). [115]…”

Section: Carbon Nanoparticlesmentioning

confidence: 99%

Moisture‐Enabled Electricity Generation: From Physics and Materials to Self‐Powered Applications

et al. 2020

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Ongoing efforts to develop this energy have led to the creation of a variety of novel technologies based on photovoltaic, [12,13] piezoelectric, [14,15] triboelectric, [16,17] and thermoelectric principles. [18,19] Devices based on these technologies are readily incorporated into self-powered, battery-free electronic systems. This also acts to eliminate the harm to the environment caused by the use of conventional batteries. [20,21] As recyclable resource, water is not only indispensable to life but also constitutes the largest energy carrier on Earth (Figure 1a). As 71% of the Earth's surface is covered by water and 35% of solar energy incident on the Earth is absorbed by water, petawatts of energy are received in this way. [22] As the water resource is clean and sustainable, the energy contained in even a small fraction of the water on Earth can meet the current global energy demand if this energy can be efficiently harvested. Terrestrial water exists in vapor and liquid form including moisture, rain, clouds, lakes, rivers, and oceans. It also forms the basis for biological systems. Even though there is a long history of electricity generation from running water, most technologies only utilize the gravitational and kinetic energy in liquid water. [23] Such systems are inherently incompatible with the development of self-powered devices. The development of nanomaterials has enabled technology for the extraction of electrical energy from moisture, leading to The exploration of the utilization of sustainable, green energy represents one way in which it is possible to ameliorate the growing threat of the global environmental issues and the crisis in energy. Moisture, which is ubiquitous on Earth, contains a vast reservoir of low-grade energy in the form of gaseous water molecules and water droplets. It has now been found that a number of functionalized materials can generate electricity directly from their interaction with moisture. This suggests that electrical energy can be harvested from atmospheric moisture and enables the creation of a new range of self-powered devices. Herein, the basic mechanisms of moisture-induced electricity generation are discussed, the recent advances in materials (including carbon nanoparticles, graphene materials, metal oxide nanomaterials, biofibers, and polymers) for harvesting electrical energy from moisture are summarized, and some strategies for improving energy conversion efficiency and output power in these devices are provided. The potential applications of moisture electrical generators in self-powered electronics, healthcare, security, information storage, artificial intelligence, and Internet-of-things are also discussed. Some remaining challenges are also considered, together with a number of suggestions for potential new developments of this emerging technology.

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Section: Carbon Nanoparticlesmentioning

confidence: 99%

Moisture‐Enabled Electricity Generation: From Physics and Materials to Self‐Powered Applications

et al. 2020

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“…When the load resistance reaches 4980 Ω, its loaded output power reaches a maximum of 61.85 μW. Compared with the average voltage per unit area of reported solar-driven TENGs (36 mV cm -2 ) [26][27][28][29][30][31][32][33][34] , our BLT-IENG (276 mV cm -2 ) is improved by a factor of 7.6~34.5 (average value~ smallest value) over that reported for solar-driven TENGs (Fig. 5c) 30 .…”

Section: Working Principle Induced By Interfacial Evaporation and Application Of The Blt-iengmentioning

confidence: 53%

A spontaneously sustainable bioinspired interfacial evaporation driven power generation strategy

Sun

Zhaoxin

Han

et al. 2021

Preprint

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In nature, liquid evaporation occurs everywhere all the time. This low-grade energy absorption to drive liquid evaporation is greatly potential for sustainable spontaneously power generation. Here, a natural liquid evaporation strategy of interfacial evaporation driven nanogenerator (IENG) is developed in this work. Coupled by the phonon wind and a fluctuating Coulomb field, an induced direct current is generated. Simultaneously, inspired by the light-trapping properties of moth eye, a simple and efficient BLT-IENG including a hierarchical surface of bionic light-trapping and electrospinning perovskite conductivity with an enhanced thermally insulating and water storage capability is designed. This enhancement of the output performance is greatly attributed to the improvement of the interfacial evaporation characteristics driven by natural solar and wind energies. Hence, our BLT-IENG achieves a breakthrough in the unit area open-circuit voltage in the marine environment, which is improved by a factor of 7.6 over the currently reported average value. This work provides an unexplored strategy for multi-energies inspired natural interfacial evaporation driven power generation.

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“…Because these nanogenerators acquire all required energy from the environment, it will find immediate applications in providing electricity and fresh-water for living and system maintenance in water-abundant isolated locations such as islands or wetlands. The findings of this work represent a significant step forward because they pointed out the concept of harvesting consistently electricity during evaporation the whole day and with any weather conditions 4 . Note that before presenting the harvesting fresh-water from a solar-driven water evaporation system, the invited speaker presented a new technology for synthesizing nanohybrid materials and their applications on next-generation solar cells, energy storage devices, solar to steam generation, and photocatalysis which is called dry plasma reduction 5 .…”

Section: Introductionmentioning

confidence: 81%

Enthusiastic discussions on solid physic and material science at SPMS2019

2020

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At 11th National Conference of Solid Physics and Material Science (SPMS2019), to which eminent scientists (5 plenary speakers and 16 invited speakers) were invited, most of the discussion focused on solid physic and material science. Around 300 researchers interested in the subject attended the conference and actively participate in the discussion. There were more than 200 reports with five specialized subcommittees: (A) Physics and magnetic materials, (B) Semiconductor and dielectric physics, (C) Materials - semiconductor components - dielectric, (D) Biomedical materials - agriculture, energy - environment, (E) Composite materials - metals - ceramics. Besides, numerous reports submitted to the Journal of Science and Technology (Vietnam Academy of Science and Technology), full-text reports sent to the Organizing Committee, after a critical review process, had been summarized and published in the Collection of conference reports.

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All day Limnobium laevigatum inspired nanogenerator self-driven via water evaporation

Cited by 122 publications

References 22 publications

Moisture‐Enabled Electricity Generation: From Physics and Materials to Self‐Powered Applications

Moisture‐Enabled Electricity Generation: From Physics and Materials to Self‐Powered Applications

A spontaneously sustainable bioinspired interfacial evaporation driven power generation strategy

Enthusiastic discussions on solid physic and material science at SPMS2019

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