Article
Materials Science, Multidisciplinary
Zhijun Zhou, Qingbao Guan, Shuopu Zhong, Qi Wang, Yiyan Xu, Zheng Cao, Hongli Xu
Summary: This article presents a fire-resistant and self-extinguishing TENG using liquid-crystalline polyarylate copolymerized with poly(ethylene terephthalate). It shows excellent electrical output performance even after 15 seconds of combustion at high temperatures, making it a promising device for lifesaving wearable applications.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Physical
Hong Chen, Jianyu Zhou, Shuai Liu, Sheng Wang, Xinglong Gong
Summary: A novel triboelectric nanogenerator (TENG) device with energy-harvesting and safeguarding properties was developed based on anti-impact and flame retardant elastomers. The TENG showed excellent fire retardancy and good energy-harvesting capabilities, serving as a wearable power source for electronic devices. Additionally, it demonstrated remarkable safeguarding performance and self-healing property.
Article
Chemistry, Physical
Qingshan Duan, Zhijun Zhang, Jiamin Zhao, Juanxia He, Weiqing Peng, Ye Zhang, Tao Liu, Shuangfei Wang, Shuangxi Nie
Summary: Fire accidents pose significant threats to public safety, property, and the environment. Traditional rescue and sensing devices are prone to failure or explosions in high-temperature and open-fire environments. This study develops fire-retardant cellulosic triboelectric materials as a potential solution.
Article
Nanoscience & Nanotechnology
Teklebrahan Gebrekrstos Weldemhret, Dong-Woo Lee, M. N. Prabhakar, Yong Tae Park, Jung Il Song
Summary: A phosphorus-doped mesoporous carbon-filled coating was successfully deposited on polyurethane foam using a layer-by-layer assembly method. The coated foam exhibited self-extinguishing properties and reduced heat release and smoke production. The coating also enabled the fabrication of a high-performance self-powered sensor.
ACS APPLIED NANO MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Jianjun Luo, Xue Shi, Pengfei Chen, Kai Han, Xunjia Li, Xia Cao, Zhong Lin Wang
Summary: In this study, a strong and flame-retardant wood-based self-powered building fire protection device was developed. By improving the mechanical strength and flame retardancy of the wood, the performance of the device was greatly enhanced. The device not only increased the strength of the flame-retardant wood and reduced the peak heat release rate, but also had the property of self-extinguishing. The device was further used to develop a self-powered intelligent wireless fire monitoring and escape route guidance system.
MATERIALS TODAY PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Jiaqing Zhu, Yu Cheng, Saifei Hao, Zhong Lin Wang, Ning Wang, Xia Cao
Summary: F-STENG utilizes feathers as a natural material, with environmental friendliness and high durability. It has high sensitivity to temperature, humidity, and wind speed, providing an effective solution for energy problems.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Engineering, Environmental
Ran Wang, Jinming Ma, Shuai Ma, Qiran Zhang, Na Li, Miaomiao Ji, Tifeng Jiao, Xia Cao
Summary: Researchers have demonstrated a flexible, biodegradable, single electrode cellulose-based triboelectric nanogenerator (FR-TENG) with high sensitivity temperature response and fire warning capabilities. The FR-TENG, fabricated using biocompatible flame retardants, reduces heat release rate and increases limiting oxygen index, while exhibiting high resistance response and thermal index, making it suitable for wearable electronics.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Xiuju Cui, An Li, Zongni Zheng, Hanguang Wu, Rui Wang
Summary: With the rapid development of textile-based triboelectric nanogenerators (T-TENGs), a simple and cheap fabrication strategy for flame-retardant T-TENGs (FRT-TENGs) with reliable electrical performance in fire disasters is highly desired. In this work, a flame-retardant triboelectric yarn is successfully developed through a simple and continuous high-speed braiding process. The FRT-TENG exhibits excellent comprehensive performances, including good energy harvesting ability, long-term durability, excellent flame retardancy, and high comfortability.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Huiyuan Wu, Jian Wang, Wencong He, Chuncai Shan, Shaoke Fu, Gui Li, Qionghua Zhao, Wenlin Liu, Chenguo Hu
Summary: Charge density is crucial for evaluating the output performance of a TENG. The CE strategy is a preferred method for boosting charge density, but it can lead to air breakdown. Understanding the physical behaviors behind air breakdown is essential for achieving higher charge density using the CE strategy.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Multidisciplinary Sciences
Chaojie Chen, Shilong Zhao, Caofeng Pan, Yunlong Zi, Fangcheng Wang, Cheng Yang, Zhong Lin Wang
Summary: A simple and effective method is proposed to quantitatively identify and extract the piezoelectric charge from hybrid signals, elucidating the true performance of piezoelectric devices.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Qixin Lu, Hong Chen, Yuanming Zeng, Jiehui Xue, Xia Cao, Ning Wang, Zhonglin Wang
Summary: This paper presents a smart facemask with respiratory monitoring function, which utilizes RS-TENG technology to achieve high-sensitivity monitoring of respiratory flow and timely alarm for apnea. Additionally, RS-TENG can also control household appliances, bringing convenience to the lives of disabled individuals.
Review
Chemistry, Physical
Jianfeng Sun, Lingjun Zhang, Siqi Gong, Jie Chen, Hengyu Guo
Summary: Triboelectric nanogenerator (TENG) is a promising renewable energy technology that converts mechanical energy into electrical energy. With its high voltage, low current and controllable output, TENG has revolutionized various disciplines including biology, chemistry, physics, and medicine. This review provides an overview of the fundamental theory, physical device models, and high voltage output characteristics of TENG, as well as methods to enhance its performance and comparisons with conventional high voltage sources. The applications of TENG are categorized into four domains: therapeutic electrical stimulation, environmental governance, force-electricity-optical information coupling, and biochemical analysis. The review also highlights key challenges and future research priorities for the advancement of TENG as a high voltage power source.
Article
Nanoscience & Nanotechnology
Tianci Huang, Yong Long, Bingqi Zhao, Qilin Hua, Zhong Lin Wang, Weiguo Hu
Summary: By preparing a barium titanate (BaTiO3)-based hybrid aerogel (BTO HA), high electrical output performances can be achieved due to the synergistic effect of solid-solid contact electrifications, gas-solid contact electrifications, and the piezoelectricity of the doped BaTiO3 nanoparticles. The BTO HA-TENG exhibited excellent fatigue resistance and structural stability, and can be used for stable power supply, driving electronic devices, and monitoring human motion signals. Compared to traditional TENGs, the BTO HA-TENG has the unique advantage of generating and transferring triboelectric charges in a 3D volume, thereby boosting its electrical output performances.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Long Jin, Steven L. Zhang, Sixing Xu, Hengyu Guo, Weiqing Yang, Zhong Lin Wang
Summary: The innovative design of free-fixed TENG utilizes magnets to fix the stator, without causing serious negative impact on the wheel, while generating high short-circuit current and open-circuit voltage. Additionally, it demonstrates superior robustness in vibration environment.
ADVANCED MATERIALS TECHNOLOGIES
(2021)
Review
Chemistry, Physical
Yansong Gai, Yonggang Jiang, Zhou Li
Summary: Timely information feedback and active therapeutic schedule can shorten the rehabilitation period and reduce patient pain. Intelligent wearable and implantable medical electronic devices have potential for health information monitoring and disease treatment. Triboelectric nanogenerator (TENG) is a cost-effective, flexible, and self-powered technology with great application potential in personalized healthcare and mobile therapy.
Article
Engineering, Electrical & Electronic
Jose Sanchez del Rio, Cristina Pascual-Gonzalez, Vanesa Martinez, Jose Luis Jimenez, Carlos Gonzalez
Summary: This study explores novel resin frontal flow monitoring electrically resistive sensors made of reinforced continuous carbon fibers and manufactured by composite additive manufacturing. By optimizing the thickness of the sensors and the distance between conductive carbon filaments, the proper monitoring of resin flow can be achieved.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Chemistry, Physical
Xiaosui Chen, Fanchang Peng, Can Wang, Hongfu Zhou, Xuebao Lin, Wei Liu, Aiqing Zhang
Summary: By in situ polymerizing a reactive hyperbranched polyphosphoramide (HBPPA) on the surface of carbon nanotubes (CNT), a novel CNT hybrid (HBPPA@CNT) was created with excellent flame retardancy and mechanical performance at a low loading. The hybrid showed enhanced properties such as increased tensile and impact strength, reduced heat release rates, and a continuous char layer for effective heat and mass transfer blocking. The synergistic effect between HBPPA and CNT led to improved mechanical performance and fire safety in epoxy composites.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Environmental
Wenliang Feng, Jing Zhang, Abdulmalik Yusuf, Xiang Ao, Dongfeng Shi, Vinodkumar Etacheri, De-Yi Wang
Summary: This study successfully addresses the limitations in energy density and fire safety issues of sodium-ion hybrid capacitors by rational design of metal-organic frameworks (MOFs, UiO-66) modified PVDF-HFP separator. The MCC test demonstrates good fire-resistant performance of the separator, and the quasi-solid-state electrolyte prepared also shows enhanced ionic conductivity for the capacitor.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Abdulmalik Yusuf, De-Yi Wang
Summary: Growing concerns over fire incidents involving lithium-ion batteries have prompted a search for safer alternatives. By incorporating flame retardant additives into the liquid electrolyte, the flammability of the electrolyte can be reduced effectively. This study demonstrates that the modified technology shows promise in diagnosing the fire resistance and hazards of flame retarded liquid electrolytes.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Review
Chemistry, Physical
Abdulmalik Yusuf, Zhi Li, Xiaoya Yuan, De-Yi Wang
Summary: Replacing flammable materials with fire retardant materials is recognized as a critical solution to the safety issues caused by fire accidents and explosions in energy storage devices. This review summarizes the progress achieved in the field of fire retardant materials for energy storage devices and provides a future outlook for their development.
Article
Engineering, Environmental
Xiaolu Li, Jose Sanchez del Rio Saez, Xiao Ao, Abdulmalik Yusuf, De-Yi Wang
Summary: This study presents the design of a highly sensitive fire alarm using flame-retardant cellulose paper, graphene oxide (GO), and two-dimensional titanium carbide (Ti3C2, MXene). The fire alarm can detect fire incidents quickly and wirelessly transmit warning signals.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Nicola Boaretto, Beatriz Davila, Sonia Sevilla, Guzman Garcia, Anastasiia Mikhalchan, Moumita Rana, Abdulmalik Yusuf, Lucio Ubierna Martinez, Marta Castillo Garcia, Jesus Palma, De-Yi Wang, Rebeca Marcilla, Juan Jose Vilatela
Summary: This work presents a scalable method for fabricating flexible, thermoconformable lithium-ion batteries for vehicle interiors. The use of composite electrodes with carbon nanotube fabric current collector and gel polymer electrolyte improves charge capacity, durability, safety, and thermal stability. The batteries demonstrate high cyclability and can operate in a wide temperature range.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Chemistry, Physical
Jose Sanchez del Rio, Abdulmalik Yusuf, Xiang Ao, Ignacio Astarloa Olaizola, Lucia Urbelz Lopez-Puertas, Maria Yolanda Ballesteros, Romano Giannetti, Vanesa Martinez, Jose Luis Jimenez, Jose Benito Bravo Monge, Xiaosui Chen, De-Yi Wang
Summary: Scientists are making great efforts to use green and free energy to protect humanity from natural disasters. A new study proposes using TENGs as self-powered seismic sensors to detect seismic waves and connect to the global Internet of Things. Various TENGs with different characteristics have been fabricated, some of which are low cost and easy to manufacture. The results show that these SEIS-TENGs have high sensitivity and similar response to commercial accelerometers. This study demonstrates the great potential of SEIS-TENGs in a global IoT seismic network to measure ground oscillations and prevent earthquake-related catastrophes.
Article
Polymer Science
Xiaosui Chen, Xuebao Lin, Wen Ye, Baoyun Xu, De-Yi Wang
Summary: A polyelectrolyte complex (PPA-PEI) was synthesized and added to epoxy resin (EP) to improve its flame retardancy and mechanical properties. The results showed that the EP/4 wt% PPA-PEI composite exhibited satisfactory flame retardancy, with reduced heat release and smoke production. The good flame retardancy was mainly attributed to the char residue with good barrier and thermal insulation properties, as well as the dilution and free radical scavenging effects in the gaseous phase. Additionally, the addition of PPA-PEI did not significantly affect the tensile strength and glass transition temperature of the EP composite, but improved its Young's modulus and storage modulus.
POLYMER DEGRADATION AND STABILITY
(2022)
Article
Polymer Science
Xiaosui Chen, Can Wang, Shuzheng Liu, Aiqing Zhang, Wei Liu, Lijun Qian
Summary: By coating HBPPA and GO on the surface of glass fibers, GF@HBPPA@GO fibers were prepared to improve the flame retardancy of polymer composites without affecting their mechanical properties.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
Article
Chemistry, Physical
Abdulmalik Yusuf, Jose Sanchez del Rio, Xiang Ao, Ignacio Astarloa Olaizola, De-Yi Wang
Summary: Thermal and fire hazards cause significant damage to human life and property. Developing a self-powered thermal and fire hazard sensor is of great importance. This sensor utilizes gravitational potential energy and triboelectric effect to generate electric signals, and has an instantaneous response within the temperature range of 80 to 89 degrees Celsius.
Article
Engineering, Environmental
Abdulmalik Yusuf, Venkata Sai Avvaru, Jimena De la Vega, Mingyang Zhang, Javier Garcia Molleja, De-Yi Wang
Summary: The safety risks associated with the liquid electrolytes of lithium-ion batteries have become a major concern due to an increase in fires related to these electrolytes in electric vehicles and portable devices. Efforts to address the fire safety of electrolytes have primarily focused on incorporating flame retardant additives, which often result in poor electrochemical properties. However, studies have shown that the addition of low amounts (around 5 vol%) of fluorinated phosphazene-based flame retardants can yield non-flammable electrolytes while also improving electrochemical properties. This research utilizes advanced testing methods to analyze a model electrolyte, revealing that a fluorinated phosphazene-based flame retardant electrolyte with up to 6 vol% only delays ignition, contrary to widely believed non-flammable behavior. Additionally, for the first time, the chemistry and structure of a flame retardant-derived cathode electrolyte interphase (CEI) layer formed on the LiFePO4 cathode surface are clarified, demonstrating that the CEI layer, characterized by a phosphorus and nitrogen-rich composition, inhibits the formation of a thick parasitic LiF layer and improves the electrochemical integrity of cells.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Sirinya Ukasi, Paritta Jutapukti, Chiranicha Ninthub, Nattapong Pinpru, Phakkhananan Pakawanit, Wanwilai Vittayakorn, Satana Pongampai, Naratip Vittayakorn, Thitirat Charoonsuk
Summary: This study explores the enhancement of electrical output of flexible hybrid piezoelectric-triboelectric nanogenerators by incorporating gamma-glycine into fully organic composites. The research demonstrates the importance of optimized concentrations of gamma-glycine and chitosan in achieving superior performance. The study identifies the critical content of gamma-glycine that leads to the highest output signal, and provides theoretical explanations for this observation.
Article
Chemistry, Physical
Yoonsang Ra, Yu-seop Kim, Seonmo Yang, Namgyu Kang, Gyuwon Oh, Chungyeon Cho, Sangmin Lee, Dongwhi Choi
Summary: In this study, a portable energy harvester (STEP) was proposed to drive various functional LEDs using biomechanical energy. The roles and functionalities of a triboelectric nanogenerator (TENG) and electromagnetic generator (EMG) in the hybrid energy harvester were experimentally demonstrated, and the necessity of hybridization for LED-involved devices was described. The STEP showed promising potential as an effective energy supply strategy for various functional LEDs in related industries.
Article
Chemistry, Physical
Dae Sol Kong, Kyung Hoon Kim, Ying Chieh Hu, Jong Hun Kim, Inseo Kim, Jeongwan Lee, Joonhyuk Lee, Won Hyuk Shon, Hanjin Yoo, Chul-Un Ro, Seungsu Lee, Hyoungjeen Jeen, Minbaek Lee, Minseok Choi, Jong Hoon Jung
Summary: With the rapid development of the Internet of Things and artificial intelligence, smart home has emerged to fulfill the security, convenience, and energy-saving issues of modern life. A flexoelectric mica crystal is used to augment the finger touch-driven triboelectric output for operating a wireless and multichannel smart home controller. This work provides important ingredients for enhancing triboelectric output and realizing a convenient, multifunctional, cost-effective, and adaptable smart home control system without batteries.
Article
Chemistry, Physical
Yi Han, Fang Wu, Xiaozhen Du, Zihao Li, Haixiang Chen, Dongxing Guo, Junlei Wang, Hong Yu
Summary: This paper presents a novel type of triboelectric nanogenerator that utilizes wind energy, with a Y-type bluff body to enhance vibration and output power. The application of this generator successfully provides power for a wireless temperature and humidity sensor.
Article
Chemistry, Physical
Wen Zhang, Fangyuan Cheng, Miao Chang, Yue Xu, Yuyu Li, Shixiong Sun, Liang Wang, Leimin Xu, Qing Li, Chun Fang, Meng Wang, Yuhao Lu, Jiantao Han, Yunhui Huang
Summary: This study successfully induced the formation of a uniform and robust CEI by constructing ZrO2 nano-rivets on the surface of LCO, stabilizing the surface of high-voltage LCO and facilitating lithium-ion diffusion.
Article
Chemistry, Physical
Karl P. Olson, Laurence D. Marks
Summary: This paper investigates the role of contacting shapes in triboelectricity and provides scaling rules for designing energy harvesting devices.
Article
Chemistry, Physical
Jong-An Choi, Jingu Jeong, Mingyu Kang, Hee-Jin Ko, Taehoon Kim, Keun Park, Jongbaeg Kim, Soonjae Pyo
Summary: Wind-driven triboelectric nanogenerators (WTENGs) are a promising emerging technology for sustainable wind energy harvesting, offering high output performance, lightweight design, and compact dimensions. This study introduces an innovative WTENG design that leverages a rolling-based mechanism to achieve efficient omnidirectional wind energy harvesting.
Article
Chemistry, Physical
Liwei Dong, Qian Tang, Chaoyang Zhao, Guobiao Hu, Shuai Qu, Zicheng Liu, Yaowen Yang
Summary: This paper proposes a novel hybrid scheme for flag-type nanogenerators (FNGs) that enhances their performance and broadens their operational wind speed ranges by harnessing the synergistic potential of two aerodynamic behaviors. The proposed flag-type triboelectric-piezoelectric hybrid nanogenerator (FTPNG) integrates flapping piezoelectric flags (PEFs) and a fluttering triboelectric flag (TEF). The FTPNG achieves significant power generation and a broad wind speed range, surpassing other FNGs, making it suitable for various self-powered systems and Internet of Things applications.
Review
Chemistry, Physical
Yunmeng Li, Xin Liu, Zewei Ren, Jianjun Luo, Chi Zhang, Changyong (Chase) Cao, Hua Yuan, Yaokun Pang
Summary: The demand for green and eco-friendly materials is growing due to increasing environmental concerns related to traditional petroleum-based products. Marine biomaterials have emerged as a promising alternative, thanks to their abundant availability, biocompatibility, biodegradability, and low toxicity. In this review, we discuss the development and applications of triboelectric nanogenerators (TENGs) based on marine biomaterials. The operational modes, foundational principles, intrinsic qualities, and advantages of marine biomaterials commonly used in TENG designs are highlighted. Approaches to enhance the efficacy of TENGs derived from marine biomaterials are also discussed, along with documented applications from existing literature. Furthermore, the existing challenges and future directions in marine biomaterial-inspired TENGs are explored.
Article
Chemistry, Physical
Matthew P. Wells, Adam J. Lovett, Yizhi Zhang, Zhongxia Shang, Kosova Kreka, Babak Bakhit, Haiyan Wang, Albert Tarancon, Judith L. MacManus-Driscoll
Summary: Reversible solid oxide cells (rSOCs) offer a promising solution to efficient energy conversion, but have been limited in portable power and electrolysis applications due to excessive polarisation resistance of the oxygen electrode at low temperatures. This study demonstrates the growth of symmetric and complete rSOC structures with reduced polarisation resistance by tuning oxygen vacancy through annealing, providing a promising route towards high-performance rSOC devices for portable power applications.
Article
Chemistry, Physical
Kangkang Bao, Minghui Wang, Yue Zheng, Panpan Wang, Liwen Yang, Yang Jin, Hui Wu, Bin Sun
Summary: This study utilizes ethanol as an electrolyte additive to modulate the migration of zinc ions and the surface structure of zinc anodes, resulting in improved capacity retention and cycle life of zinc-based aqueous batteries.
Article
Chemistry, Physical
Haichao Yang, Wensi Cai, Ming Wang, Saif M. H. Qaid, Zhiyuan Xu, Huaxin Wang
Summary: The introduction of sodium alginate (SA) into perovskite solar cells improves the carrier dynamics, stability, and performance by inhibiting nonradiative recombination and retarded charge dynamics.
Article
Chemistry, Physical
Cuirong Zhang, Mingyuan Wei, Zihan Chen, Wansheng Lin, Shifan Yu, Yijing Xu, Chao Wei, Jinwei Zhang, Ziquan Guo, Yuanjin Zheng, Qingliang Liao, Xinqin Liao, Zhong Chen
Summary: Artificial Intelligence of Things (AIoT) aims to establish smart and informative interactions between humans and devices. However, common pixelated sensing arrays in AIoT applications present problems such as hard and brittle devices, complex structures, and low precision. This article introduces an innovative solution called the all-in-one intelligent semitransparent interactive nerve patch (AISI nerve patch), which integrates sensing, recognition, and transmission functionalities into a thin and flexible patch. The AISI nerve patch is semitransparent, allowing for accurate identification without affecting aesthetics, and it can be attached to any curved surface for intelligent and interactive applications. With rapid response time and high precision recognition, it enables the integration of artificial intelligence and achieves high recognition accuracy for further development of AIoT.
Article
Chemistry, Physical
Youcun Bai, Heng Zhang, Huijun Song, Chong Zhu, Lijin Yan, Qin Hu, Chang Ming Li
Summary: A novel stainless-steel supported lattice-mismatched V-S-Se layered compound with high selenium vacancy was synthesized by adjusting the molar ratio of sulfur to selenium. The introduction of selenium vacancies created additional redox peaks of sulfur, providing more mass transport channels and active sites for zinc ions. The specific capacity and cycle stability of the electrode were significantly improved, demonstrating great potential for practical applications and providing insights into the effects of defects on battery performance.
Article
Chemistry, Physical
Yao Xiao, Puxian Xiong, Yakun Le, Zhenjie Lun, Kang Chen, Zhiduo Wang, Peishan Shao, Zhicong Chen, Dongdan Chen, Zhongmin Yang
Summary: This study successfully synthesized a material with multi-stimulus-responsive luminescence and confirmed the internal relationship between luminescence and defects by regulating the distribution and depth of defects. The dynamic process of multi-stimulus-responsive luminescence was validated by experimental and calculation results.
