Review
Chemistry, Multidisciplinary
Guoli Du, Jinlong Wang, Yanhua Liu, Jinxia Yuan, Tao Liu, Chenchen Cai, Bin Luo, Siqiyuan Zhu, Zhiting Wei, Shuangfei Wang, Shuangxi Nie
Summary: In this review, the fabrication methods and performance enhancements of cellulosic triboelectric materials via dielectric modulation are comprehensively discussed. The advantages and progress in cellulosic materials are highlighted, and the challenges and future opportunities for cellulose dielectric modulation are summarized.
Article
Chemistry, Multidisciplinary
Huiyuan Wu, Shaoke Fu, Wencong He, Chuncai Shan, Jian Wang, Yan Du, Shihe Du, Bangxing Li, Chenguo Hu
Summary: This study reports a fast surface charge injection technique based on air breakdown effect, which allows for directional accumulation of charge and improves the output performance of triboelectric nanogenerator. A novel charge transfer mechanism is proposed, and a method for quantifying surface charge density is given.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Jihoon Chung, Seh-Hoon Chung, Zong-Hong Lin, Youngho Jin, Jinkee Hong, Sangmin Lee
Summary: TENG is a new type of generator that can collect mechanical energy, and the dielectric liquid-based self-operating switch triboelectric nanogenerator has a higher power generation efficiency, which can overcome the current limitation of air breakdown.
Article
Chemistry, Physical
Qionghua Zhao, Huiyuan Wu, Jian Wang, Shuyan Xu, Wencong He, Chuncai Shan, Shaoke Fu, Gui Li, Kaixian Li, Chenguo Hu
Summary: By utilizing the charge excitation technology of voltage-multiplying circuit, an ultrafast charge self-injection strategy is proposed, which can achieve saturation value within 22s for the surface of the dielectric layer in a contact-separation TENG. Moreover, the surface charge can be retained to the maximum value by the step-by-step discharge mitigation strategy. With a 7μm polyimide film, a super-high charge density of 1480μC/m² is achieved, which is currently the historical high by modification of single layer material series. This work is an important breakthrough in triboelectric layer modification and provides a systematic discussion on the physical mechanism related to surface charge density.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Qingbao Guan, Xiao Lu, Yuyao Chen, Haiyang Zhang, Yaxuan Zheng, Rasoul Esmaeely Neisiany, Zhengwei You
Summary: Flammability is a challenge for electronics, but triboelectric nanogenerators (TENGs) provide a safe way to convert environmental energy into power. Most polymeric materials for TENGs are easily flammable, limiting their applications in extreme conditions. This study presents a fire-resistant TENG based on a liquid crystalline polymer, offering outstanding anti-dripping, temperature- and fire-resistance properties.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Anas A. Ahmed, Hasan M. Abdullah, Talal F. Qahtan, Asan G. A. Muthalif, Marwan Nafea, Mohamed Sultan Mohamed Ali
Summary: This study proposes an enhanced distance-dependent electric field model to accurately predict the triboelectric characteristics of TENGs. The model has been validated under open-circuit and short-circuit conditions and provides a theoretical analysis of the air-breakdown boundary. The findings indicate that improving the TENG's performance by boosting the surface charge density is more effective at smaller sizes and shorter distances.
Article
Chemistry, Physical
Jin-ho Son, Deokjae Heo, Hyungseok Yong, Jiwoong Hur, Myunghwan Song, Moonhyun Choi, Heesoo Jung, Min-Kun Kim, Jinkee Hong, Sangmin Lee
Summary: This paper proposes a unidirectional charge-supplying flutter TENG (UCSF-TENG) that converts mechanical energy into electricity with high peak/RMS current output performance. The UCSF-TENG achieved a peak current of 5.9 A and an RMS current of 20 mA by using a rectifier diode and unique fluttering device design. The electrical output mechanism of the UCSF-TENG was analyzed based on mechanical fluttering motion analysis and achieved an average power of 109 mW through structural optimization. The UCSF-TENG can charge a supercapacitor, power commercial lamps, and operate sensor arrays continuously, demonstrating its potential for boosting TENG output current performance while maintaining integrability and portability.
Article
Chemistry, Physical
Guang Li, Shuying Wu, Zhao Sha, Yang Zhou, Chun-Hui Wang, Shuhua Peng
Summary: This study introduces a strategy to construct DC-TENGs using a dual-breakdown mechanism with dielectric tribo-materials, achieving direct conversion of mechanical energy to DC power with high efficiency.
Review
Chemistry, Physical
Di Liu, Jiayue Zhang, Shengnan Cui, Linglin Zhou, Yikui Gao, Zhong Lin Wang, Jie Wang
Summary: This review provides a systematic and comprehensive overview of advanced materials for TENGs, including their classifications, fabrication methods, and required properties for applications. The triboelectric, friction, and dielectric performance of these materials are analyzed, emphasizing their roles in TENG design. The recent progress of advanced materials in mechanical energy harvesting and self-powered sensors for TENGs is also summarized, along with an overview of the emerging challenges, strategies, and opportunities for further research and development.
Article
Materials Science, Multidisciplinary
Afaf M. Babeer, Abd El-razek Mahmoud
Summary: In this study, a new strategy called suppression ferroelectricity of KNN lead-free ceramics was proposed for enhancing energy storage properties and dielectric breakdown strength. The synthesis of KNN and NN-ABT ceramics using the solid reaction technique was conducted, and their crystal structure, dielectric, and ferroelectric properties were studied. The results showed that by inhibiting grain size and modifying the crystal structure, significant improvement in energy storage performance and dielectric breakdown strength could be achieved.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Wencong He, Chuncai Shan, Huiyuan Wu, Shaoke Fu, Qianying Li, Gui Li, Xuemei Zhang, Yan Du, Jian Wang, Xue Wang, Chenguo Hu
Summary: In this study, a novel strategy is proposed to capture dissipation charge for enhancing the output performance of sliding TENG. By designing DC output electrodes based on the coupling of triboelectrification and air-breakdown, the device achieves multichannel output and significantly increases the power density.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Qiwei Zheng, Lin Fang, Xiaolong Tang, Li Zheng, Hexing Li
Summary: Indoor air pollution is a significant threat to human health, but this dust removal system that utilizes high-voltage electrostatic adsorption provides a potential solution for improving indoor air quality and human health.
Article
Chemistry, Physical
Wenjian Li, Feng Yan, Yinyu Xiang, Wei Zhang, Katja Loos, Yutao Pei
Summary: This study proposes using 2D smectite clay (SC) nanosheets to enhance the surface charge density of traditional triboelectric-negative materials. By blending SC nanosheets with polyvinylidene fluoride (PVDF) at an optimal concentration of 5 wt%, the SC-TENG shows significantly improved output performance. The instantaneous output power density of the SC-TENG is increased from 15 mW/m(2) to 1450 mW/m(2).
Article
Chemistry, Multidisciplinary
Sooik Im, Ethan Frey, Daniel J. Lacks, Jan Genzer, Michael D. Dickey
Summary: This paper demonstrates that air-stable radicals enhance the stability of triboelectric charge on surfaces. The charge retention is shown to increase with hydrophobicity, but the most prolonged charge retention is observed in surfaces treated with TEMPO, which are more hydrophilic. The charge retention decreases with reducing radical density by etching the TEMPO-silane or scavenging the radicals.
Article
Chemistry, Physical
Dongchang Kim, Jihoon Chung, Deokjae Heo, Seh-Hoon Chung, Giuk Lee, Patrick T. J. Hwang, Min-Kun Kim, Heesoo Jung, Youngho Jin, Jinkee Hong, Sangmin Lee
Summary: As a valuable tool for harvesting energy, triboelectric nanogenerators (TENGs) have advantages over other energy-harvesting methods in terms of their low weight, low cost, and high-power density. To overcome limitations of TENGs, a mechanism that can produce both AC and DC outputs with amplified electrical current has been established. A miniaturized and portable variant of the TENG has also been designed for harvesting mechanical energy in daily-life activities.
ADVANCED ENERGY MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Peiyuan Yang, Linglin Zhou, Yikui Gao, Junfeng Xiao, Di Liu, Zhihao Zhao, Wenyan Qiao, Jiaqi Liu, Zhong Lin Wang, Jie Wang
Summary: A simple self-charge excitation technique is proposed to overcome the limitation of triboelectrification in high-performance TENG. By using this technique, the output performance of poor tribo-materials can be greatly enhanced.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Yingzhe Li, Chaoran Liu, Haiyang Zou, Lufeng Che, Peng Sun, Jiaming Yan, Wenzhu Liu, Zhenlong Xu, Weihuang Yang, Linxi Dong, Libo Zhao, Xucong Wang, Gaofeng Wang, Zhong Lin Wang
Summary: This is a summary of an integrated wearable and low-cost smart respiratory monitoring sensor system that assists in diagnosing respiratory abnormalities by detecting multiple parameters of human respiration. The system utilizes intelligent analysis and data mining algorithms to obtain real-time self-calibrated parameters with an accuracy rate of over 95.21%, including breathing frequency, apnea hypopnea index, vital capacity, peak expiratory flow, and other respiratory indexes. The data can be wirelessly transferred to the user's data cloud terminal, enabling comprehensive analysis of physiological parameters for auxiliary diagnosis and classification of diseases, as well as rehabilitation of COVID-19, and demonstrating the advantages of portable healthcare.
CELL REPORTS PHYSICAL SCIENCE
(2023)
Article
Multidisciplinary Sciences
Jiayue Zhang, Yikui Gao, Di Liu, Jing-Shan Zhao, Jie Wang
Summary: This study investigates the three discharge domains in DC triboelectric nanogenerators and develops a model to explain the relationship between ideal conditions and real outputs, resulting in an increase in output power.
NATURE COMMUNICATIONS
(2023)
Review
Chemistry, Physical
Chuguo Zhang, Yijun Hao, Jiayi Yang, Wei Su, Hongke Zhang, Jie Wang, Zhong Lin Wang, Xiuhan Li
Summary: The ocean is a crucial area for human production and living, with transportation, food production, and energy supply being among its significant roles. Developing advanced technologies for efficient and safe ocean exploitation and utilization is highly desired. The advanced triboelectric nanogenerator (TENG) is an important choice for developing the corresponding advanced technologies for marine exploitation, as it can transform mechanical motion into electric energy. This review comprehensively categorizes and summarizes the latest representative research works based on TENG technology for marine exploitation, and discusses the specific prospects of TENG in promoting future research.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Lixia He, Chuguo Zhang, Baofeng Zhang, Yikui Gao, Wei Yuan, Xinyuan Li, Linglin Zhou, Zhihao Zhao, Zhong Lin Wang, Jie Wang
Summary: This article presents a mulberry-silk based triboelectric nanogenerator (MS-TENG) with low-wear, humidity-resistant, and high-output characteristics, which efficiently and economically harvests energy. Due to the fluffy structure and good triboelectric performance of mulberry silk, it achieves a 10 times improvement in energy harvesting efficiency compared with previous works. Moreover, the MS-TENG exhibits stable output performance even after 1,500,000 cycles or under a relative humidity of up to 90%, thanks to the low friction force and hygroscopicity of mulberry silk. This work provides an efficient strategy for the long-term practical application of TENG in energy harvesting and powering IoTs.
Article
Chemistry, Physical
Taotao Zhan, Haiyang Zou, Hengfei Zhang, Peng He, Zhanlei Liu, Junshuai Chen, Maogang He, Ying Zhang, Zhong Lin Wang
Summary: It is highly desirable to measure fluid pressure and its pulsations through portable, handheld instruments and test kits for cheaper, faster, and smarter point-of-care testing. A portable self-powered smart fluid pressure sensor based on a liquid piston triboelectric nanogenerator has been proposed, which can accurately determine the fluid's pressure and flowing status. The sensor has high accuracy and resolution, making it suitable for real-time monitoring of fluid status and potential applications in healthcare, manufacturing, transportation, and civil service.
Article
Chemistry, Physical
Yuexiao Hu, Xinyuan Li, Yikui Gao, Zhihao Zhao, Baofeng Zhang, Chuguo Zhang, Lixia He, Jiaqi Liu, Linglin Zhou, Zhong Lin Wang, Jie Wang
Summary: This study proposes a noncontact constant-voltage triboelectric nanogenerator via charge excitation (ECV-TENG) to enhance output performance. The ECV-TENG achieves high power and long service life, as well as good humidity resistance. This research not only promotes the potential applications of TENGs as a distributed energy supply but also provides new insights toward large-scale energy harvesting by TENGs.
ACS ENERGY LETTERS
(2023)
Review
Chemistry, Physical
Di Liu, Jiayue Zhang, Shengnan Cui, Linglin Zhou, Yikui Gao, Zhong Lin Wang, Jie Wang
Summary: This review provides a systematic and comprehensive overview of advanced materials for TENGs, including their classifications, fabrication methods, and required properties for applications. The triboelectric, friction, and dielectric performance of these materials are analyzed, emphasizing their roles in TENG design. The recent progress of advanced materials in mechanical energy harvesting and self-powered sensors for TENGs is also summarized, along with an overview of the emerging challenges, strategies, and opportunities for further research and development.
Article
Chemistry, Multidisciplinary
Chuguo Zhang, Wei Yuan, Baofeng Zhang, Jiayi Yang, Yuexiao Hu, Lixia He, Xuejiao Zhao, Xiuhan Li, Zhong Lin Wang, Jie Wang
Summary: The floating water wave energy harvesting devices have economic advantages, and the self-adaptive rotating triboelectric nanogenerator (SR-TENG) provides a new approach for wave energy harvesting. The SR-TENG has achieved an average mass power density of 45.18 mW kg(-1) under low frequency driving conditions, which is about 10 times higher than the reference electromagnetic generator.
Article
Chemistry, Physical
Baofeng Zhang, Lixia He, Ruolin Zhang, Wei Yuan, Jing Wang, Yuexiao Hu, Zhihao Zhao, Linglin Zhou, Jie Wang, Zhong Lin Wang
Summary: The retirement of lithium-ion batteries (LIBs) due to the electrification of transportation has hindered sustainability. Challenges in recycling the spent LIBs include contamination, complicated processes, massive chemical/energy consumption, and secondary pollution. A material and energy dual circulations method is proposed here to address these challenges, enabling the closed-loop and sustainable recycling of components in spent LIBs. The method involves the electrochemical dual-electrode recycling technology to regenerate LIBs and fabricate a triboelectric nanogenerator (TENG) in the material circulation, while the fabricated TENG converts ambient wind energy into electricity to power the material circulation in the energy circulation. This system shows high element selectivity, self-powering capability, simplified treating procedure, and high profit, making it feasible for commercial application.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Shengnan Cui, Di Liu, Peiyuan Yang, Jiaqi Liu, Yikui Gao, Zhihao Zhao, Linglin Zhou, Jiayue Zhang, Zhong Lin Wang, Jie Wang
Summary: This paper proposes a universal strategy for selecting appropriate triboelectric material pairs (TMPs) for direct-current triboelectric nanogenerator (DC-TENG) to optimize its performance by considering both friction and triboelectric properties. The thermoplastic urethanes (TPU)-ethylene-tetra-fluoro-ethylene (ETFE) pair exhibited considerable output performance.
Article
Chemistry, Multidisciplinary
Baofeng Zhang, Lixia He, Jing Wang, Yuebo Liu, Xu Xue, Shengnan He, Chuguo Zhang, Zhihao Zhao, Linglin Zhou, Jie Wang, Zhong Lin Wang
Summary: We report an innovative self-powered system composed of an electrochemical LIB recycling reactor and a triboelectric nanogenerator (TENG) for recycling spent LFP. The electrochemical LIB recycling reactor adopts the Cl-/ClO- pair as the redox mediator to break down LFP without extra chemicals, and the TENG utilizes discarded components from LIBs to minimize secondary pollutants. The TENG harvests wind energy to power the electrochemical recycling system and charge batteries. The proposed system exhibits high purity, self-powered features, simplified treatment procedure, and high profit, promoting the sustainability of LIB technologies.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Ziting Guo, Peiyuan Yang, Zhihao Zhao, Yikui Gao, Jiayue Zhang, Linglin Zhou, Jie Wang, Zhong Lin Wang
Summary: In this study, a TENG based on a charge reversion process and supported by a modified dielectric capacitance model is proposed. The surface charge density (SCD) increases 8-fold and the energy output of the TENG is significantly enhanced. This research not only proposes a strategy for building highly efficient TENGs, but also establishes a modified dielectric capacitance model considering the air breakdown effect for understanding the surface charge transfer behavior in TENGs.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Zhihao Zhao, Jiayue Zhang, Wenyan Qiao, Linglin Zhou, Ziting Guo, Xinyuan Li, Zhong Lin Wang, Jie Wang
Summary: A quantification method is proposed to determine the effective contact area and assess the contact efficiency of large-scale tribovoltaic nanogenerators, and the corresponding optimization strategy is also provided to enhance their output performance.
MATERIALS HORIZONS
(2023)