Symmetrically pumped charges with high confinement stiffness for boosted performance in wave energy harvesting
文献类型：期刊论文
| 作者 | Qiu, Huijing1,4; Song, Weizhi4; Deng, Zichao3,4; Wang, Zhong Lin4; Xu, Liang1,2,4 |
| 刊名 | ENERGY & ENVIRONMENTAL SCIENCE
 |
| 出版日期 | 2025-06-17 |
| 卷号 | 18期号:12页码:5961-5972 |
| ISSN号 | 1754-5692 |
| DOI | 10.1039/d5ee01158b |
| 通讯作者 | Xu, Liang(xuliang@binn.cas.cn) |
| 英文摘要 | Enhancing the output is the most crucial challenge in developing triboelectric nanogenerators (TENGs) as an alternative technology to exploit wave energy, which is more difficult than other application scenarios owing to the full-encapsulation requirement and slow agitation of practical waves. Herein, we developed a symmetrical charge pumping method based on a non-contact TENG, achieving boosted performance in practical slow waves. The method allows for synchronously accumulating positive and negative confinement charges to a high density under the synergistic effect of oil dielectrics. More importantly, we found a new control parameter for device performance, termed as confinement stiffness, which refers to the degree of squeezing out of confined charges under Coulombic reaction force. By enhancing confinement stiffness, the output performance and stability of TENGs can be greatly improved. Moreover, a pre-switching power management circuit is designed, and it solves the inconsistency problem of a traditional circuit with the charge pumping method, reaching an 874.6-fold enhancement in capacitor charging. Moreover, a novel negative power phenomenon is reported. Based on these comprehensive designs, the charge density and power output are greatly boosted, reaching 1.6 mC m-2 and 1.215 W, respectively, under ideal conditions. When tested in a 45-meter-long wave basin, the peak power density can reach 176.15 W m-3 under 1 Hz waves, which sets a new record and is 10.37 times greater than that of the reference device. The work demonstrates comprehensive strategies for boosting TENG performance, which should represent a key step toward efficient blue energy harvesting for self-powered systems and marine clean energy. |
| WOS关键词 | TRIBOELECTRIC NANOGENERATORS ; FREQUENCY |
| 资助项目 | Youth Innovation Promotion Association[ZDBS-LY-DQC025] ; Key Research Program of Frontier Sciences, CAS[2021YFA1201603] ; Key Research Program of Frontier Sciences, CAS[2021YFA1201601] ; National Key R & D Project from the Minister of Science and Technology[2019170] ; Youth Innovation Promotion Association, CAS |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001487334200001 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/202040]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
| 通讯作者 | Xu, Liang |
| 作者单位 | 1.Guangxi Univ, Sch Phys Sci & Technol, Educ Dept Guangxi Zhuang Autonomous Reg, Key Lab Blue Energy & Syst Integrat,Inst Sci & Te, Nanning 530004, Peoples R China 2.Univ Chinese Acad Sci, Sch Nanosci & Engn, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Adv Marine Mat, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 4.Chinese Acad Sci, Beijing Inst Nanoenergy & Nanosyst, Beijing 101400, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiu, Huijing,Song, Weizhi,Deng, Zichao,et al. Symmetrically pumped charges with high confinement stiffness for boosted performance in wave energy harvesting[J]. ENERGY & ENVIRONMENTAL SCIENCE,2025,18(12):5961-5972. |
| APA | Qiu, Huijing,Song, Weizhi,Deng, Zichao,Wang, Zhong Lin,&Xu, Liang.(2025).Symmetrically pumped charges with high confinement stiffness for boosted performance in wave energy harvesting.ENERGY & ENVIRONMENTAL SCIENCE,18(12),5961-5972. |
| MLA | Qiu, Huijing,et al."Symmetrically pumped charges with high confinement stiffness for boosted performance in wave energy harvesting".ENERGY & ENVIRONMENTAL SCIENCE 18.12(2025):5961-5972. |
入库方式： OAI收割
来源：海洋研究所
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