A Forest‐Based Triboelectric Energy Harvester

Edberg, Jesper; Mulla, Mohammad Yusuf; Hosseinaei, Omid; Alvi, Naveed ul Hassan; Beni, Valerio

doi:10.1002/gch2.202200058

Cited by 6 publications

(7 citation statements)

References 57 publications

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“…The field, therefore, should consider developing TENGs from biodegradable or recyclable polymer surfaces, which will mitigate the environmental impact from polymer waste. Currently, TENGs engineered from biodegradable polymers are promising, [164][165][166][167] yet still perform worse than PDMS-based systems. By combining these biodegradable TENGs with the emerging mechanistic understandings described herein, the performance can be dramatically improved while preventing further microplastic environmental pollution.…”

Section: Environmentally Responsible Tengsmentioning

confidence: 99%

Engineering Polymer Interfaces: A Review toward Controlling Triboelectric Surface Charge

Šutka

Lapčinskis

et al. 2023

Adv Materials Inter

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Contact electrification and triboelectric charging are areas of intense research. Despite their low ability to accept or donate electrons, polymer insulator based triboelectric nanogenerators have emerged as highly efficient mechanical‐to‐electrical conversion devices. Here, it is reviewed the structure–property–performance of polymer insulators in triboelectric nanogenerators and focus on tools that can be used to directly enhance charge generation, via altering a polymer's mechanical, thermal, chemical, and topographical properties. In addition to the discussion of these fundamental properties, the use of additives to locally manipulate the polymer surface structure is discussed. The link between each property and the underlying charging mechanism is discussed, in the context of both increasing surface charge and predicting the polarity of surface charge, and pathways to engineer triboelectric charging are highlighted. Key questions facing the field surrounding data reporting, the role of water, and synergy between mass, electron, and ion transfer mechanisms are highlighted with aspirational goals of a holistic model for triboelectric charging proposed.

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Section: Environmentally Responsible Tengsmentioning

confidence: 99%

Engineering Polymer Interfaces: A Review toward Controlling Triboelectric Surface Charge

Šutka

Lapčinskis

et al. 2023

Adv Materials Inter

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“…[38,39] Subsequently, in this work cellulose was replaced with nitrocellulose (NC), which is more electronegative and hence has a position lower down in the triboelectric series (Figure 1c). [40,41] This separation is enough to generate a voltage large enough to be useful for sensing applications while being not too large to damage the low-power electronics employed for readout.…”

Section: Sensor Structure and Signal-to-noise Ratiomentioning

confidence: 99%

A Paper‐Based Triboelectric Touch Interface: Toward Fully Green and Recyclable Internet of Things

Edberg

Boda

Mulla

et al. 2022

Advanced Sensor Research

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The transition to a sustainable society is driving the development of green electronic solutions designed to have a minimal environmental impact. One promising route to achieve this goal is to construct electronics from biobased materials like cellulose, which is carbon neutral, non-toxic, and recyclable. This is especially true for internet-of-things devices, which are rapidly growing in number and are becoming embedded in every aspect of our lives. Here, paper-based sensor circuits are demonstrated, which use triboelectric pressure sensors to help elderly people communicate with the digital world using an interface in the form of an electronic "book", which is more intuitive to them. The sensors are manufactured by screen printing onto flexible paper substrates, using in-house developed cellulose-based inks with non-hazardous solvents. The triboelectric sensor signal, generated by the contact between a finger and chemically modified cellulose, can reach several volts, which can be registered by a portable microcontroller card and transmitted by Bluetooth to any device with an internet connection. Apart from the microcontroller (which can be easily removed), the whole system can be recycled at the end of life.

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“…Table 3 summarises the exemplar material combinations from the literature from such biopolymer‐biopolymer contact pairs. [ 66–69 ] Pan et al. [ 66 ] and Edberg et al.…”

Section: Resultsmentioning

confidence: 99%

High Performance Triboelectric Nanogenerators from Compostable Cellulose‐Biodegradable Poly(Butylene Succinate) Composites

Lapčinskis,

Ģērmane,

Platnieks

et al. 2023

Advanced Sustainable Systems

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Triboelectric nanogenerator (TENG) devices are exemplar systems for mechanical‐to‐electrical energy conversion due to their simplicity and promising performance. However, little attention has been paid to recycling or reusing TENG devices. Indeed, most TENG devices are based on non‐biodegradable polymers, and thus end up in a landfill. Developing biodegradable triboelectric materials is crucial to mitigate negative environmental impacts from their growing use, however, it is challenging to identify such a materials that generate an applicable charge. Herein, such a biodegradable polymer triboelectric pair is demonstrated, by combining poly(butylene succinate) (PBS) films with microcrystalline cellulose (MCC) filler. A power density of 143 mW m−2 and a charge density of 1.36 nC cm−2 is measured when contacting pristine PBS with 70 wt% MCC/PBS composite film, which is comparable to polydimethylsiloxane‐based TENGs under identical testing conditions. These devices are shown to degrade via composting at 58 °C over 70 days, enabling long‐term (>10 000 cycle) performance and degradation upon disposal. It is suggested that this approach can be extended to control triboelectric properties for other biodegradable polymers. The technology and concepts developed herein directly address the United Nations Sustainable Development Goals for Responsible Consumption & Production and Affordable and Clean Energy.

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A Forest‐Based Triboelectric Energy Harvester

Cited by 6 publications

References 57 publications

Engineering Polymer Interfaces: A Review toward Controlling Triboelectric Surface Charge

Engineering Polymer Interfaces: A Review toward Controlling Triboelectric Surface Charge

A Paper‐Based Triboelectric Touch Interface: Toward Fully Green and Recyclable Internet of Things

High Performance Triboelectric Nanogenerators from Compostable Cellulose‐Biodegradable Poly(Butylene Succinate) Composites

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