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He L, Gao Y, Liu D, Hu Y, Shi J, Zhang J, Li X, Jin B, Zhang B, Wang ZL, Wang J. Dynamic interfacial electrostatic energy harvesting via a single wire. SCIENCE ADVANCES 2024; 10:eado5362. [PMID: 38865464 PMCID: PMC11168474 DOI: 10.1126/sciadv.ado5362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 05/08/2024] [Indexed: 06/14/2024]
Abstract
Spontaneously occurred electrostatic breakdown releases enormous energy, but harnessing the energy remains a notable challenge due to its irregularity and instantaneity. Here, we propose a revolutionary method that effectively harvests the energy of dynamic interfacial electrostatic breakdown by simply imbedding a conductive wire (diameter, 25 micrometers) beneath dielectric materials to regulate the originally chaotic and distributed electrostatic energy resulted from contact electrification into aggregation, effectively transforming mechanical energy into electricity. A point-charge physical model is proposed to explain the power generation process and output characteristics, guide structural design, and enhance output performance. Furthermore, a quantified triboelectric series including 72 dielectric material pairs is established for materials choice and optimization. In addition, a high voltage of over 10 kilovolts is achieved using polytetrafluoroethylene and polyethylene terephthalate. This work opens a door for effectively using electrostatic energy, offering promising applications ranging from novel high-voltage power sources, smart clothing, and internet of things.
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Affiliation(s)
- Lixia He
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, P. R. China
- College of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yikui Gao
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, P. R. China
- College of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Di Liu
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, P. R. China
- College of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yuexiao Hu
- Center on Nanoenergy Research, School of Physical Science and Technology, Guangxi University, Nanning, 530004, P. R. China
| | - Jianxun Shi
- Center on Nanoenergy Research, School of Physical Science and Technology, Guangxi University, Nanning, 530004, P. R. China
| | - Jiayue Zhang
- Department of Mechanical Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Xinyuan Li
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, P. R. China
- College of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Bingzhe Jin
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, P. R. China
- College of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Baofeng Zhang
- Hubei Key Laboratory of Automotive Power Train and Electronic Control, School of Automotive Engineering, Hubei University of Automotive Technology, Shiyan 442002, P. R. China
| | - Zhong Lin Wang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, P. R. China
- Guangzhou Institute of Blue Energy, Knowledge City, Huangpu District, Guangzhou 510555, P. R. China
- Georgia Institute of Technology, Atlanta, GA 30332, USA
- Yonsei Frontier Lab, Yonsei University, Seoul 03722, Republic of Korea
| | - Jie Wang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, P. R. China
- College of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- Guangzhou Institute of Blue Energy, Knowledge City, Huangpu District, Guangzhou 510555, P. R. China
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Gong S, Wang X, Tang B, Xiong Z, Qi S, Chen J, Yu P, Guo H. Achieving Self-Reinforcing Triboelectric-Electromagnetic Hybrid Nanogenerator by Magnetocaloric and Magnetization Effects of Gadolinium. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2402824. [PMID: 38588011 DOI: 10.1002/adma.202402824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 03/27/2024] [Indexed: 04/10/2024]
Abstract
Triboelectric-electromagnetic hybrid nanogenerator (TEHG) has emerged as a promising technology for distributed energy harvesting. However, currently reported hybrid generators are straightforward combinations of two functional components. Moreover, inevitable heat from friction intensifies material abrasion and degrades the performance of polymer-based triboelectric nanogenerators (TENGs). Here, a self-reinforcing TEHG (SR-TEHG) that harnesses the magnetocaloric and magnetization effects of gadolinium (Gd), is proposed. The synergy between TENG and electromagnetic generator (EMG) renders them an indivisible unit. Leveraging Gd's magnetocaloric effect, an efficient heat transfer mechanism is constructed to cool the tribolayer and strengthen the device's electrical stability. After 80 h of continuous operation, the optimized TENG occupies a charge decay rate of only 0.32% per hour, significantly outperforming most existing TENGs. Additionally, Gd's magnetization effect boosts the power of EMG by ≈80.84%. This work provides a universal solution in hybrid generators where internal components reinforce each other, achieving a synergistic effect of 1 + 1 > 2.
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Affiliation(s)
- Shaokun Gong
- College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, 401331, China
| | - Xingwei Wang
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Benzhen Tang
- College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, 401331, China
| | - Ziyang Xiong
- College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, 401331, China
| | - Song Qi
- Key Lab for Optoelectronic Technology and Systems, College of Optoelectronic Engineering, Chongqing University, Chongqing, 400044, China
| | - Jie Chen
- College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, 401331, China
| | - Peng Yu
- College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, 401331, China
| | - Hengyu Guo
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing, 400044, China
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Tan L, Zeng Q, Xu F, Zhao Q, Chen A, Wang T, Tao X, Yang Y, Wang X. Controllable Manipulation of Large-Volume Droplet on Non-Slippery Surfaces Based on Triboelectric Contactless Charge Injection. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2313878. [PMID: 38364828 DOI: 10.1002/adma.202313878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/06/2024] [Indexed: 02/18/2024]
Abstract
Controllable droplet manipulation is crucial in diverse scientific and engineering fields. Traditional electric-based methods usually rely on commercial high-voltage (HV) power sources, which are typically bulky, expensive, and potentially hazardous. The triboelectric nanogenerator (TENG) is a highly studied device that can generate HV output with limited current, showing great potential in droplet manipulation applications. However, current TENG-based approaches usually utilize traditional free-standing TENGs that produce short-pulsed alternating-current signals. This limitation hinders continuous electrostatic forces necessary for precise droplet control, leading to complex circuitry and suboptimal droplet motion control in terms of volume, distance, direction, and momentum. Here, a triboelectric contactless charge injection (TCCI) method employing a novel dual-functional triboelectric nanogenerator (DF-TENG), is proposed. The DF-TENG can produce both high voltage and constant current during unidirectional motion, enabling continuous corona discharges for contactless charge injection into the droplets. Using this method, a large-volume droplet (3000 µL) can be controlled with momentum up to 115.2 g mm s-1, quintupling the highest value recorded by the traditional methods. Moreover, the TCCI method is adaptable for a variety of non-slippery substrates and droplets of different compositions and viscosities, which makes it an ideal manipulation strategy for droplet transport, chemical reactions, and even driving solids.
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Affiliation(s)
- Liming Tan
- Department of Applied Physics, Chongqing University, Chongqing, 400044, P. R. China
| | - Qixuan Zeng
- Department of Applied Physics, Chongqing University, Chongqing, 400044, P. R. China
| | - Fan Xu
- Department of Applied Physics, Chongqing University, Chongqing, 400044, P. R. China
| | - Qing Zhao
- Department of Applied Physics, Chongqing University, Chongqing, 400044, P. R. China
| | - Ai Chen
- Department of Applied Physics, Chongqing University, Chongqing, 400044, P. R. China
| | - Tingyu Wang
- Department of Applied Physics, Chongqing University, Chongqing, 400044, P. R. China
| | - Xingming Tao
- Department of Applied Physics, Chongqing University, Chongqing, 400044, P. R. China
| | - Yuchen Yang
- Department of Applied Physics, Chongqing University, Chongqing, 400044, P. R. China
| | - Xue Wang
- Department of Applied Physics, Chongqing University, Chongqing, 400044, P. R. China
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Li Y, Luo Y, Deng H, Shi S, Tian S, Wu H, Tang J, Zhang C, Zhang X, Zha JW, Xiao S. Advanced Dielectric Materials for Triboelectric Nanogenerators: Principles, Methods, and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2314380. [PMID: 38517171 DOI: 10.1002/adma.202314380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/06/2024] [Indexed: 03/23/2024]
Abstract
Triboelectric nanogenerator (TENG) manifests distinct advantages such as multiple structural selectivity, diverse selection of materials, environmental adaptability, low cost, and remarkable conversion efficiency, which becomes a promising technology for micro-nano energy harvesting and self-powered sensing. Tribo-dielectric materials are the fundamental and core components for high-performance TENGs. In particular, the charge generation, dissipation, storage, migration of the dielectrics, and dynamic equilibrium behaviors determine the overall performance. Herein, a comprehensive summary is presented to elucidate the dielectric charge transport mechanism and tribo-dielectric material modification principle toward high-performance TENGs. The contact electrification and charge transport mechanism of dielectric materials is started first, followed by introducing the basic principle and dielectric materials of TENGs. Subsequently, modification mechanisms and strategies for high-performance tribo-dielectric materials are highlighted regarding physical/chemical, surface/bulk, dielectric coupling, and structure optimization. Furthermore, representative applications of dielectric materials based TENGs as power sources, self-powered sensors are demonstrated. The existing challenges and promising potential opportunities for advanced tribo-dielectric materials are outlined, guiding the design, fabrication, and applications of tribo-dielectric materials.
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Affiliation(s)
- Yi Li
- State Key Laboratory of Power Grid Environmental Protection, School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei, 430072, China
| | - Yi Luo
- Beijing International S&T Cooperation Base for Plasma Science and Energy Conversion, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Haocheng Deng
- State Key Laboratory of Power Grid Environmental Protection, School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei, 430072, China
| | - Shengyao Shi
- State Key Laboratory of Power Grid Environmental Protection, School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei, 430072, China
| | - Shuangshuang Tian
- Hubei Engineering Research Center for Safety Monitoring of New Energy and Power Grid Equipment, Hubei University of Technology, Wuhan, Hubei, 430068, China
| | - Haoying Wu
- State Key Laboratory of Power Grid Environmental Protection, School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei, 430072, China
| | - Ju Tang
- State Key Laboratory of Power Grid Environmental Protection, School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei, 430072, China
| | - Cheng Zhang
- Beijing International S&T Cooperation Base for Plasma Science and Energy Conversion, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xiaoxing Zhang
- Hubei Engineering Research Center for Safety Monitoring of New Energy and Power Grid Equipment, Hubei University of Technology, Wuhan, Hubei, 430068, China
| | - Jun-Wei Zha
- Beijing Advanced Innovation Center for Materials Genome Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Song Xiao
- State Key Laboratory of Power Grid Environmental Protection, School of Electrical Engineering and Automation, Wuhan University, Wuhan, Hubei, 430072, China
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Wu X, Li Y, Wen M, Xie Y, Zeng K, Liu YN, Chen W, Zhao Y. Nanocatalysts for modulating antitumor immunity: fabrication, mechanisms and applications. Chem Soc Rev 2024; 53:2643-2692. [PMID: 38314836 DOI: 10.1039/d3cs00673e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Immunotherapy harnesses the inherent immune system in the body to generate systemic antitumor immunity, offering a promising modality for defending against cancer. However, tumor immunosuppression and evasion seriously restrict the immune response rates in clinical settings. Catalytic nanomedicines can transform tumoral substances/metabolites into therapeutic products in situ, offering unique advantages in antitumor immunotherapy. Through catalytic reactions, both tumor eradication and immune regulation can be simultaneously achieved, favoring the development of systemic antitumor immunity. In recent years, with advancements in catalytic chemistry and nanotechnology, catalytic nanomedicines based on nanozymes, photocatalysts, sonocatalysts, Fenton catalysts, electrocatalysts, piezocatalysts, thermocatalysts and radiocatalysts have been rapidly developed with vast applications in cancer immunotherapy. This review provides an introduction to the fabrication of catalytic nanomedicines with an emphasis on their structures and engineering strategies. Furthermore, the catalytic substrates and state-of-the-art applications of nanocatalysts in cancer immunotherapy have also been outlined and discussed. The relationships between nanostructures and immune regulating performance of catalytic nanomedicines are highlighted to provide a deep understanding of their working mechanisms in the tumor microenvironment. Finally, the challenges and development trends are revealed, aiming to provide new insights for the future development of nanocatalysts in catalytic immunotherapy.
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Affiliation(s)
- Xianbo Wu
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China.
| | - Yuqing Li
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China.
| | - Mei Wen
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China.
| | - Yongting Xie
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China.
| | - Ke Zeng
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China.
| | - You-Nian Liu
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China.
| | - Wansong Chen
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China.
| | - Yanli Zhao
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore.
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Wang Y, Wang X, Nie S, Meng K, Lin Z. Recent Progress of Wearable Triboelectric Nanogenerator-Based Sensor for Pulse Wave Monitoring. SENSORS (BASEL, SWITZERLAND) 2023; 24:36. [PMID: 38202897 PMCID: PMC10780409 DOI: 10.3390/s24010036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 11/24/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024]
Abstract
Today, cardiovascular diseases threaten human health worldwide. In clinical practice, it has been concluded that analyzing the pulse waveform can provide clinically valuable information for the diagnosis of cardiovascular diseases. Accordingly, continuous and accurate monitoring of the pulse wave is essential for the prevention and detection of cardiovascular diseases. Wearable triboelectric nanogenerators (TENGs) are emerging as a pulse wave monitoring biotechnology due to their compelling characteristics, including being self-powered, light-weight, and wear-resistant, as well as featuring user-friendliness and superior sensitivity. Herein, a comprehensive review is conducted on the progress of wearable TENGs for pulse wave monitoring. Firstly, the four modes of operation of TENG are briefly described. Secondly, TENGs for pulse wave monitoring are classified into two categories, namely wearable flexible film-based TENG sensors and textile-based TENG sensors. Next, the materials, fabrication methods, working mechanisms, and experimental performance of various TENG-based sensors are summarized. It concludes by comparing the characteristics of the two types of TENGs and discussing the potential development and challenges of TENG-based sensors in the diagnosis of cardiovascular diseases and personalized healthcare.
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Affiliation(s)
- Yiming Wang
- School of Electronic and Information Engineering, Southwest University, Chongqing 400715, China; (Y.W.); (X.W.); (S.N.)
| | - Xiaoke Wang
- School of Electronic and Information Engineering, Southwest University, Chongqing 400715, China; (Y.W.); (X.W.); (S.N.)
| | - Shijin Nie
- School of Electronic and Information Engineering, Southwest University, Chongqing 400715, China; (Y.W.); (X.W.); (S.N.)
| | - Keyu Meng
- School of Electronic and Information Engineering, Changchun University, Changchun 130022, China;
| | - Zhiming Lin
- School of Electronic and Information Engineering, Southwest University, Chongqing 400715, China; (Y.W.); (X.W.); (S.N.)
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Hu J, Iwamoto M, Chen X. A Review of Contact Electrification at Diversified Interfaces and Related Applications on Triboelectric Nanogenerator. NANO-MICRO LETTERS 2023; 16:7. [PMID: 37930592 PMCID: PMC10628068 DOI: 10.1007/s40820-023-01238-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 10/06/2023] [Indexed: 11/07/2023]
Abstract
The triboelectric nanogenerator (TENG) can effectively collect energy based on contact electrification (CE) at diverse interfaces, including solid-solid, liquid-solid, liquid-liquid, gas-solid, and gas-liquid. This enables energy harvesting from sources such as water, wind, and sound. In this review, we provide an overview of the coexistence of electron and ion transfer in the CE process. We elucidate the diverse dominant mechanisms observed at different interfaces and emphasize the interconnectedness and complementary nature of interface studies. The review also offers a comprehensive summary of the factors influencing charge transfer and the advancements in interfacial modification techniques. Additionally, we highlight the wide range of applications stemming from the distinctive characteristics of charge transfer at various interfaces. Finally, this review elucidates the future opportunities and challenges that interface CE may encounter. We anticipate that this review can offer valuable insights for future research on interface CE and facilitate the continued development and industrialization of TENG.
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Affiliation(s)
- Jun Hu
- CAS Center for Excellence in Nanoscience, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, People's Republic of China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Mitsumasa Iwamoto
- Department of Physical Electronics, Tokyo Institute of Technology, 2-12-1 S3-33 O-Okayama, Meguro-Ku, Tokyo, 152-8552, Japan.
| | - Xiangyu Chen
- CAS Center for Excellence in Nanoscience, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, People's Republic of China.
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.
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Zheng Y, Li J, Xu T, Cui H, Li X. Triboelectric Nanogenerator for Droplet Energy Harvesting Based on Hydrophobic Composites. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5439. [PMID: 37570143 PMCID: PMC10419362 DOI: 10.3390/ma16155439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 07/29/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023]
Abstract
Triboelectric nanogenerators (TENG) have shown great potential in harvesting energy from water. For the TENG that harvests water energy, surface hydrophobicity is crucial for its performance. In this paper, we prepare a hydrophobic composite film of Polyvinylidene Fluoride/Polydimethylsiloxane/Polytetrafluoroethylene (PVDF/PDMS/PTFE) and an electrode of Polyaniline/Carbon nanotubes/Silver nanowires (PANI/CNTs/AgNWs) by electrospinning technology and a doping method, respectively, which are served as the friction layer and top electrode of TENG. The contact angle of the hydrophobic film and electrode both reach over 120°, which makes the separation process between water and the interface complete and promotes the output of TENG. The open-circuit voltage (Voc) and short-circuit current (Isc) can reach 150 V and 60 μA approximately. In addition, the composite electrode can be applied in the preparation of complex electrode shapes. Furthermore, the different reactions of TENG to different liquids indicate that it may contribute to liquid-type sensing systems. This work presents an efficient approach to fabricating hydrophobic films and electrodes, laying a foundation for the development of TENG for harvesting water energy.
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Affiliation(s)
- Yang Zheng
- College of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China; (Y.Z.); (J.L.); (T.X.); (H.C.)
| | - Jingjing Li
- College of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China; (Y.Z.); (J.L.); (T.X.); (H.C.)
| | - Tiantian Xu
- College of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China; (Y.Z.); (J.L.); (T.X.); (H.C.)
| | - Hongzhi Cui
- College of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China; (Y.Z.); (J.L.); (T.X.); (H.C.)
| | - Xiaoyi Li
- College of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China; (Y.Z.); (J.L.); (T.X.); (H.C.)
- Key Laboratory for Special Functional Materials of Ministry of Education, School of Materials Science and Engineering, Henan University, Kaifeng 475004, China
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Shan C, Li K, Cheng Y, Hu C. Harvesting Environment Mechanical Energy by Direct Current Triboelectric Nanogenerators. NANO-MICRO LETTERS 2023; 15:127. [PMID: 37209262 PMCID: PMC10200001 DOI: 10.1007/s40820-023-01115-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 04/24/2023] [Indexed: 05/22/2023]
Abstract
As hundreds of millions of distributed devices appear in every corner of our lives for information collection and transmission in big data era, the biggest challenge is the energy supply for these devices and the signal transmission of sensors. Triboelectric nanogenerator (TENG) as a new energy technology meets the increasing demand of today's distributed energy supply due to its ability to convert the ambient mechanical energy into electric energy. Meanwhile, TENG can also be used as a sensing system. Direct current triboelectric nanogenerator (DC-TENG) can directly supply power to electronic devices without additional rectification. It has been one of the most important developments of TENG in recent years. Herein, we review recent progress in the novel structure designs, working mechanism and corresponding method to improve the output performance for DC-TENGs from the aspect of mechanical rectifier, tribovoltaic effect, phase control, mechanical delay switch and air-discharge. The basic theory of each mode, key merits and potential development are discussed in detail. At last, we provide a guideline for future challenges of DC-TENGs, and a strategy for improving the output performance for commercial applications.
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Affiliation(s)
- Chuncai Shan
- School of Physics, Chongqing University, Chongqing, 400044, People's Republic of China
| | - Kaixian Li
- School of Physics, Chongqing University, Chongqing, 400044, People's Republic of China
| | - Yuntao Cheng
- School of Energy and Engineering, Chongqing University, Chongqing, 400044, People's Republic of China.
| | - Chenguo Hu
- School of Physics, Chongqing University, Chongqing, 400044, People's Republic of China.
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