Electric power generation using paper materials

Gao, Xin; Xu, Tong; Shao, Changxiang; Han, Yuanfei; Lü, Bing; Zhang, Zhipan; Qu, Liangti

doi:10.1039/c9ta08264f

Cited by 110 publications

(83 citation statements)

References 25 publications

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“…It has been found that commercial printing paper, pure cellulose films, and filler-free filter paper have abundant polarized oxygen groups that can release free protons allowing them to be used to generate electricity in moist conditions. [95,164] These MEGs are based on the ionic diffusion gradient mechanism, but the gradient in ion concentration and the electric field readily collapse, yielding transient voltage pulses when exposed to moisture (Figure 12). It is relevant that paper incorporating power generation units can also be assembled into various shapes and structures such as books, origami, and Chinese traditional paper fans (Figure 12a), with capabilities of harvesting energy from ambient moisture.…”

Section: Biofiber-based Megs For Transient Electricity Outputmentioning

confidence: 99%

Section: Selection Of Materials For Harvesting Energy From Moisturementioning

confidence: 99%

Section: Selection Of Materials For Harvesting Energy From Moisturementioning

confidence: 99%

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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: Biofiber-based Megs For Transient Electricity Outputmentioning

confidence: 99%

Section: Selection Of Materials For Harvesting Energy From Moisturementioning

confidence: 99%

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

et al. 2020

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“…However, the observed voltage was only microvolts/cm and the fabrication and handling of CNTs is incompatible with large-scale applications. Similarly, it has been observed that a few millivolts can be generated by using carbon black 20 , graphene oxide 27,28 , monolayer graphene 29,30 , as well as carbon-based hybrid systems grown on oxide nanowire networks 31 or cellulose-based lter paper printed with multi-walled CNTs 32,33 . However, most of these carbon-based materials adhere only weakly to substrates, making devices rather fragile and hard to scale up, and the output voltage was below 100 mV/cm 2 range at the largest 22,27,29,30,34,35 .…”

Section: Introductionmentioning

confidence: 98%

WITHDRAWN: Power Generation by Water Transpiration from Microporous Alumina

Kaur¹,

Ishii²,

Nozaki³

et al. 2021

Preprint

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Hydropower generation has been the most developed sustainable energy source that is based on the electromagnetic transduction of the gravitational potential energy but is only realized through elaborate construction of water dam and not yet suitable for small-scale energy harvesters. Here, we report that wetting and evaporation of water from a small block of porous alumina can generate electrical current in the direction of water transpiration. This induced current in microporous alumina is associated with the mass transport of water accompanying the accumulated charge near the negatively charged surface of the alumina pore. Without any pre-treatment or additives, once water evaporation commences, a 3×3 cm2 piece of alumina generates an open-circuit voltage of up to 0.27 V. Possible influence on power generation of the water-insulator interface and naturally available protons in water are discussed with respect to experimental results. Total output of this novel microporous ceramic electric generator can be scaled up and could be used for stand-alone energy harvesters or power generators in self-powered off-grid agricultural/ industrial sensors.

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“…直到2017年, 周军和郭万林团队 [20] . 中国科学院苏州纳米技术与纳米仿生研究所张挺研究组 [23] [33] . 除了碳基材料, 大连理工大学边继明研究组 [34] 和东莞理工学院高峰研究组 [25] 将Ni-Al层状氢氧化物涂 .…”

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Research progress of power generation device drivenby water evaporation

Niu¹,

Li²

2020

Chin. Sci. Bull.

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Electric power generation using paper materials

Abstract: Paper materials are utilized in moist-electric power generation, and a ‘power’ book that harvests moist-electricity is demonstrated.

Cited by 110 publications

References 25 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

WITHDRAWN: Power Generation by Water Transpiration from Microporous Alumina

Research progress of power generation device drivenby water evaporation

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