scholarly journals Self-powered ammonia synthesis under ambient conditions via N2 discharge driven by Tesla turbine triboelectric nanogenerators

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Kai Han ◽  
Jianjun Luo ◽  
Jian Chen ◽  
Baodong Chen ◽  
Liang Xu ◽  
...  
Keyword(s):  
Large Scale ◽  
Ammonia Synthesis ◽  
High Energy ◽  
Triboelectric Nanogenerator ◽  
Ambient Conditions ◽  
Waste Gas ◽  
Simulated Waste ◽  
High Rotation Speed ◽  
Self Powered ◽  
Triboelectric Nanogenerators

AbstractAmmonia synthesis using low-power consumption and eco-friendly methods has attracted increasing attention. Here, based on the Tesla turbine triboelectric nanogenerator (TENG), we designed a simple and effective self-powered ammonia synthesis system by N2 discharge. Under the driving of the simulated waste gas, the Tesla turbine TENG showed high rotation speed and high output. In addition, the performance of two Tesla turbine TENGs with different gas path connections was systematically investigated and discussed. A controllable series-parallel connection with the control of gas supply time was also proposed. Taking advantage of the intrinsic high voltage, corona discharge in a N2 atmosphere was simply realized by a Tesla turbine TENG. With the flow of N2, the generated high-energy plasma can immediately react with water molecules to directly produce ammonia. The self-powered system achieved a yield of 2.14 μg h−1 (0.126 μmol h−1) under ambient conditions, showing great potential for large-scale synthesis.

scholarly journals Mesoporous Highly-Deformable Composite Polymer for a Gapless Triboelectric Nanogenerator via a One-Step Metal Oxidation Process

Micromachines ◽  
2018 ◽  
Vol 9 (12) ◽  
pp. 656 ◽  
Author(s):  
Hee Hwang ◽  
Younghoon Lee ◽  
Choongyeop Lee ◽  
Youngsuk Nam ◽  
Jinhyoung Park ◽  
...  
Keyword(s):  
Large Scale ◽  
Cost Effective ◽  
Triboelectric Nanogenerator ◽  
Pressure Sensitivity ◽  
Composite Polymer ◽  
Pdms Film ◽  
One Step ◽  
Self Powered ◽  
Triboelectric Nanogenerators ◽  
Flake Structure

The oxidation of metal microparticles (MPs) in a polymer film yields a mesoporous highly-deformable composite polymer for enhancing performance and creating a gapless structure of triboelectric nanogenerators (TENGs). This is a one-step scalable synthesis for developing large-scale, cost-effective, and light-weight mesoporous polymer composites. We demonstrate mesoporous aluminum oxide (Al2O3) polydimethylsiloxane (PDMS) composites with a nano-flake structure on the surface of Al2O3 MPs in pores. The porosity of mesoporous Al2O3-PDMS films reaches 71.35% as the concentration of Al MPs increases to 15%. As a result, the film capacitance is enhanced 1.8 times, and TENG output performance is 6.67-times greater at 33.3 kPa and 4 Hz. The pressure sensitivity of 6.71 V/kPa and 0.18 μA/kPa is determined under the pressure range of 5.5–33.3 kPa. Based on these structures, we apply mesoporous Al2O3-PDMS film to a gapless TENG structure and obtain a linear pressure sensitivity of 1.00 V/kPa and 0.02 μA/kPa, respectively. Finally, we demonstrate self-powered safety cushion sensors for monitoring human sitting position by using gapless TENGs, which are developed with a large-scale and highly-deformable mesoporous Al2O3-PDMS film with dimensions of 6 × 5 pixels (33 × 27 cm2).

Ultra High performance, lead free Bi2WO6: P(VDF-TrFE) based triboelectric nanogenerator for self-powered sensor and smart electronic applications

2022 ◽  
Author(s):  
Dhiraj Bharti ◽  
Sushmitha Veeralingam ◽  
Sushmee Badhulika
Keyword(s):  
Output Power ◽  
Power Supply ◽  
High Performance ◽  
Lead Free ◽  
Triboelectric Nanogenerator ◽  
High Output Power ◽  
Self Powered ◽  
Triboelectric Nanogenerators ◽  
High Output

Obtaining sustainable, high output power supply from triboelectric nanogenerators still remains a major issue which restricts their widespread use in self-powered electronic applications. In this work, an ultra-high performance, non-toxic,...

scholarly journals Rationally patterned electrode of direct-current triboelectric nanogenerators for ultrahigh effective surface charge density

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Zhihao Zhao ◽  
Yejing Dai ◽  
Di Liu ◽  
Linglin Zhou ◽  
Shaoxin Li ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Charge Density ◽  
Surface Charge ◽  
Direct Current ◽  
Surface Charge Density ◽  
Large Scale ◽  
Triboelectric Nanogenerator ◽  
Electrode Structure ◽  
Effective Surface ◽  
Self Powered

AbstractAs a new-era of energy harvesting technology, the enhancement of triboelectric charge density of triboelectric nanogenerator (TENG) is always crucial for its large-scale application on Internet of Things (IoTs) and artificial intelligence (AI). Here, a microstructure-designed direct-current TENG (MDC-TENG) with rationally patterned electrode structure is presented to enhance its effective surface charge density by increasing the efficiency of contact electrification. Thus, the MDC-TENG achieves a record high charge density of ~5.4 mC m−2, which is over 2-fold the state-of-art of AC-TENGs and over 10-fold compared to previous DC-TENGs. The MDC-TENG realizes both the miniaturized device and high output performance. Meanwhile, its effective charge density can be further improved as the device size increases. Our work not only provides a miniaturization strategy of TENG for the application in IoTs and AI as energy supply or self-powered sensor, but also presents a paradigm shift for large-scale energy harvesting by TENGs.

Self-powered electrocatalytic ammonia synthesis directly from air as driven by dual triboelectric nanogenerators

2020 ◽  
Vol 13 (8) ◽  
pp. 2450-2458 ◽  
Author(s):  
Kai Han ◽  
Jianjun Luo ◽  
Yawei Feng ◽  
Liang Xu ◽  
Wei Tang ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Ammonia Synthesis ◽  
Electrocatalytic Reduction ◽  
Self Powered ◽  
Triboelectric Nanogenerators

Driven by dual triboelectric nanogenerators, nitrogen fixation from the air can proceed simultaneously with electrocatalytic reduction for self-powered ammonia synthesis.

Alaska’s Renewables-Source Fuel Energy Storage Pilot Plant: Toward Community Energy Independence via Solid State Ammonia Synthesis (SSAS)

2013 ◽  
Author(s):  
William C. Leighty
Keyword(s):  
Energy Storage ◽  
Solid State ◽  
Large Scale ◽  
Ammonia Synthesis ◽  
Low Cost ◽  
High Energy ◽  
High Energy Density ◽  
Energy Needs ◽  
Steel Tanks ◽  
Energy Independence

Alaska village survival is threatened by the high cost of imported fuels for heating, electricity generation, and vehicles. During Winter 2007–8, the price per gallon of heating oil and diesel generation fuel exceeded $8 in many villages. Many villagers were forced to move to Anchorage or Fairbanks. Although indigenous renewable energy (RE) resources may be adequate to supply a community’s total annual energy needs, the innate intermittent and seasonal output of the renewables — except geothermal, where available, which may be considered “baseload” — requires large-scale, low-cost energy storage to provide an annually-firm energy supply. Anhydrous ammonia, NH3, is the most attractive, carbon-free fuel for this purpose at Alaska village scale, because of its 17.8% mass hydrogen content and its high energy density as a low-pressure liquid, suitable for storage in inexpensive mild steel tanks. NH3 may be synthesized directly from renewable-source electricity, water, and atmospheric nitrogen (N2) via solid state ammonia synthesis (SSAS), a new process to be pioneered in Alaska.

Powering Healthcare IoT Sensors-Based Triboelectric Nanogenerator

2020 ◽  
pp. 29-51
Author(s):  
Saeed Ahmed Khan ◽  
Shamsuddin Lakho ◽  
Ahmed Ali ◽  
Abdul Qadir Rahimoon ◽  
Izhar Hussain Memon ◽  
...  
Keyword(s):  
Human Body ◽  
Pressure Sensors ◽  
Wearable Devices ◽  
Temperature Sensors ◽  
The Body ◽  
Body Motion ◽  
Triboelectric Nanogenerator ◽  
Self Powered ◽  
Fitness Tracking ◽  
Triboelectric Nanogenerators

Most of the emerging electronic devices are wearable in nature. However, the frequent changing or charging the battery of all wearable devices is the big challenge. Interestingly, with those wearable devices that are directly associated with the human body, the body can be used in transferring or generating energy in a number of techniques. One technique is triboelectric nanogenerators (TENG). This chapter covers different applications where the human body is used as a triboelectric layer and as a sensor. Wearable TENG has been discussed in detail based on four basic modes that could be used to monitor the human health. In all the discussions, the main focus is to power the wearable healthcare internet of things (IoT) sensor through human body motion based on self-powered TENG. The IoT sensors-based wearable devices related to human body can be used to develop smart body temperature sensors, pressure sensors, smart textiles, and fitness tracking sensors.

scholarly journals Large Scale Triboelectric Nanogenerator and Self-Powered Flexible Sensor for Human Sleep Monitoring

Sensors ◽  
2018 ◽  
Vol 18 (6) ◽  
pp. 1713 ◽  
Author(s):  
Xiaoheng Ding ◽  
Hailin Cao ◽  
Xinghong Zhang ◽  
Mingyu Li ◽  
Yuntian Liu
Keyword(s):  
Large Scale ◽  
Triboelectric Nanogenerator ◽  
Sleep Monitoring ◽  
Flexible Sensor ◽  
Human Sleep ◽  
Self Powered

scholarly journals Triboelectric nanogenerator based on Teflon/vitamin B1 powder for self-powered humidity sensing

2020 ◽  
Vol 11 ◽  
pp. 1394-1401
Author(s):  
Liangyi Zhang ◽  
Huan Li ◽  
Yiyuan Xie ◽  
Jing Guo ◽  
Zhiyuan Zhu
Keyword(s):  
Relative Humidity ◽  
Mechanical Energy ◽  
Vitamin B1 ◽  
Cost Effective ◽  
Electrical Energy ◽  
Open Circuit ◽  
Triboelectric Nanogenerator ◽  
Cost Effective Method ◽  
Self Powered ◽  
Triboelectric Nanogenerators

Recently, there has been growing interest in triboelectric nanogenerators (TENGs) that can effectively convert various forms of mechanical energy input into electrical energy. In the present study, a novel Teflon/vitamin B1 powder based triboelectric nanogenerator (TVB-TENG) is proposed. Paper is utilized as a supporting platform for triboelectrification between a commercial Teflon tape and vitamin B1 powder. The measured open-circuit voltage was approximately 340 V. The TVB-TENG can be applied as a humidity sensor and exhibits a linear and reversible response to the relative humidity of the environment. Moreover, the change in relative humidity is also indicated by the change in luminosity of a set of light-emitting diodes (LEDs) integrated in the TVB-TENG system. The TVB-TENG proposed in this study illustrates a cost-effective method for portable power supply and sensing devices.

scholarly journals The Progress of PVDF as a Functional Material for Triboelectric Nanogenerators and Self-Powered Sensors

Micromachines ◽  
2018 ◽  
Vol 9 (10) ◽  
pp. 532 ◽  
Author(s):  
Jin Lee ◽  
Jae Lee ◽  
Jeong Baik
Keyword(s):  
Output Power ◽  
Polyvinylidene Fluoride ◽  
Rapid Development ◽  
Device Fabrication ◽  
Innovative Technology ◽  
Triboelectric Nanogenerator ◽  
New Energy ◽  
Piezoelectric Effects ◽  
Self Powered ◽  
Triboelectric Nanogenerators

Ever since a new energy harvesting technology, known as a triboelectric nanogenerator (TENG), was reported in 2012, the rapid development of device fabrication techniques and mechanical system designs have considerably made the instantaneous output power increase up to several tens of mW/cm2. With this innovative technology, a lot of researchers experimentally demonstrated that various portable/wearable devices could be operated without any external power. This article provides a comprehensive review of polyvinylidene fluoride (PVDF)-based polymers as effective dielectrics in TENGs for further increase of the output power to speed up commercialization of the TENGs, as well as the fundamental issues regarding the materials. In the end, we will also review PVDF-based sensors based on the triboelectric and piezoelectric effects of the PVDF polymers.

Highly porous composite aerogel based triboelectric nanogenerators for high performance energy generation and versatile self-powered sensing

Nanoscale ◽  
2018 ◽  
Vol 10 (48) ◽  
pp. 23131-23140 ◽  
Author(s):  
Hao-Yang Mi ◽  
Xin Jing ◽  
Zhiyong Cai ◽  
Yuejun Liu ◽  
Lih-Sheng Turng ◽  
...  
Keyword(s):  
High Performance ◽  
Energy Generation ◽  
Triboelectric Nanogenerator ◽  
Porous Composite ◽  
Composite Aerogel ◽  
Cellulose Aerogel ◽  
Self Powered ◽  
Triboelectric Nanogenerators ◽  
Highly Porous

A porous composite triboelectric nanogenerator (PCTENG) with excellent energy generation and sensing performances has been developed by introducing rabbit fur into a cellulose aerogel.

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