Functionalized wood with tunable tribopolarity for efficient triboelectric nanogenerators

Abstract

We describe a functional wood triboelectric nanogenerator (FW-TENG) made by modifying a wood scaffold respectively with ZIF-8 and PDMS. Our approach enables wood with a wide spectrum of triboelectric polarities while preserving its sustainability and aesthetic appearance. We demonstrate the application of our FW-TENG as an energy-harvesting wooden floor or panel, allowing it to power household lamps and other electronic devices when activated by walking or tapping.

Recent advances in stretchable, wearable and bio-compatible triboelectric nanogenerators

“…A summary of the effect of the abovementioned parameters on TENGs is shown in Table 1. With the increase of the distance between the skin and the triboelectric layer of the S-TENG (described in Section 3) from 1 to 20 mm, the voltage rises from À38 to À201 V. 27 In other research, the effect of PDMS thickness (25,50,100,200, and 300 mm) on the charge transfer of the SI-TENG 85 (described in Section 3) was investigated by applying a force of 8 N. The results showed that V OC , I SC , and Q SC increase initially and then reduce. They found that the SI-TENG with a PDMS thickness of 50 mm has the best output of V OC of 35 V, Q SC of 13 nC, and I SC of 0.08 mA.…”

“…Synthetic polymers like PTFE, polyvinylidene fluoride (PVDF), Kapton, PDMS, and polyethylene terephthalate (PET) as typical TENG materials 38,65,[93][94][95] can release dangerous chemicals to the environment due to their incomplete degradation. 96 Thus, recently, there has been a great deal of development of bio-based TENGs by employing eco-friendly, simple, low-cost, degradable, and renewable biomaterials such as wood, [97][98][99][100][101] silk, [102][103][104][105][106][107][108][109][110] cellulose, 101,[111][112][113][114][115][116][117][118][119][120][121] starch, 96,120,122,123 and chitosan [124][125][126] instead of non-renewable synthetic polymers.…”

Review of Wood Modification and Wood Functionalization Technologies

“…For example, wood was modified with metal organic frameworks and polydimethylsiloxane. This functionalized wood possess potential for the design of the next generation of sustainable power supplies in smart buildings [327].…”

Manufacturing Technics for Fabric/Fiber-Based Triboelectric Nanogenerators: From Yarns to Micro-Nanofibers

“…Collecting energy from the surrounding environment is one potential solution to this issue. As a revolutionary energy harvesting technology, triboelectric nanogenerators (TENGs) utilize simple construction and mechanisms to effectively harvest mechanical energy and play a crucial role in the construction of portable power sources or self-powered systems [ 15 , 16 , 17 ]. Moreover, compared to traditional power supply systems, TENGs have the advantages of light weight, simple structure, and strong material adaptability [ 18 , 19 ].…”