气候变化领域集成服务门户(CCPortal): Giant thermopower of ionic gelatin near room temperature

CCPortal

DOI	10.1126/science.aaz5045
	Giant thermopower of ionic gelatin near room temperature
	Han C.-G.; Qian X.; Li Q.; Deng B.; Zhu Y.; Han Z.; Zhang W.; Wang W.; Feng S.-P.; Chen G.; Liu W.
发表日期	2020
ISSN	0036-8075
起始页码	1091
结束页码	1098
卷号	368 期号:6495
英文摘要	Harvesting heat from the environment into electricity has the potential to power Internet-of-things (IoT) sensors, freeing them from cables or batteries and thus making them especially useful for wearable devices. We demonstrate a giant positive thermopower of 17.0 millivolts per degree Kelvin in a flexible, quasi-solid-state, ionic thermoelectric material using synergistic thermodiffusion and thermogalvanic effects. The ionic thermoelectric material is a gelatin matrix modulated with ion providers (KCl, NaCl, and KNO3) for thermodiffusion effect and a redox couple [Fe(CN)64-/Fe(CN)63-] for thermogalvanic effect. A proof-of-concept wearable device consisting of 25 unipolar elements generated more than 2 volts and a peak power of 5 microwatts using body heat. This ionic gelatin shows promise for environmental heat-to-electric energy conversion using ions as energy carriers. © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works
关键词	detection method electricity equipment Internet temperature effect thermal power
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133456
推荐引用方式 GB/T 7714	Han C.-G.,Qian X.,Li Q.,et al. Giant thermopower of ionic gelatin near room temperature[J]. Science,2020,368(6495).
APA	Han C.-G..,Qian X..,Li Q..,Deng B..,Zhu Y..,...&Liu W..(2020).Giant thermopower of ionic gelatin near room temperature.,368(6495).
MLA	Han C.-G.,et al."Giant thermopower of ionic gelatin near room temperature".368.6495(2020).