{"title":"Exploring Pyrazine-Based Organic Redox Couples for Enhanced Thermoelectric Performance in Wearable Energy Harvesters (Small 14/2025)","authors":"Chia-Yu Lee, Ching-Chieh Hsu, Chia-Hsin Wang, U-Ser Jeng, Shih-Huang Tung, Chi-Chang Hu, Cheng-Liang Liu","doi":"10.1002/smll.202570105","DOIUrl":null,"url":null,"abstract":"<p><b>Thermoelectric Generators</b></p><p>Thermogalvanic cell-based thermoelectric generators convert low-temperature waste heat into electricity. In article number 2407622, Cheng-Liang Liu and co-workers analyze pyrazine-based redox couples and identify 2,5-pyrazinedicarboxylic acid dihydrate (PDCA) as optimal. When integrated into a double-network hydrogel, PDCA achieves an ionic Seebeck coefficient of 2.99 mV K<sup>−1</sup>. A TEG with 36 PDCA-soaked hydrogels successfully powers an LED, demonstrating potential for wearable devices.\n\n <figure>\n <div><picture>\n <source></source></picture><p></p>\n </div>\n </figure></p>","PeriodicalId":228,"journal":{"name":"Small","volume":"21 14","pages":""},"PeriodicalIF":13.0000,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/smll.202570105","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Small","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/smll.202570105","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Thermoelectric Generators
Thermogalvanic cell-based thermoelectric generators convert low-temperature waste heat into electricity. In article number 2407622, Cheng-Liang Liu and co-workers analyze pyrazine-based redox couples and identify 2,5-pyrazinedicarboxylic acid dihydrate (PDCA) as optimal. When integrated into a double-network hydrogel, PDCA achieves an ionic Seebeck coefficient of 2.99 mV K−1. A TEG with 36 PDCA-soaked hydrogels successfully powers an LED, demonstrating potential for wearable devices.
期刊介绍:
Small serves as an exceptional platform for both experimental and theoretical studies in fundamental and applied interdisciplinary research at the nano- and microscale. The journal offers a compelling mix of peer-reviewed Research Articles, Reviews, Perspectives, and Comments.
With a remarkable 2022 Journal Impact Factor of 13.3 (Journal Citation Reports from Clarivate Analytics, 2023), Small remains among the top multidisciplinary journals, covering a wide range of topics at the interface of materials science, chemistry, physics, engineering, medicine, and biology.
Small's readership includes biochemists, biologists, biomedical scientists, chemists, engineers, information technologists, materials scientists, physicists, and theoreticians alike.