南方科技大学知识苑(SUSTech KC): Giant negative thermopower of ionic hydrogel by synergistic coordination and hydration interactions

题名	Giant negative thermopower of ionic hydrogel by synergistic coordination and hydration interactions
作者	Chen, Bin; Chen, Qianling; Xiao, Songhua; Feng, Jiansong ; Zhang, Xu ; Wang, Taihong
通讯作者	Wang, Taihong
发表日期	2021-11-01
DOI	10.1126/sciadv.abi7233
发表期刊	Science Advances 影响因子和分区
ISSN	2375-2548
卷号	7 期号:48
摘要	The design of ultrasensitive ionic thermopiles is important for low-grade heat collection and temperature sensing. However, high-quality ionic thermoelectric materials with negative thermopower have been rarely reported to date. Effective adjustment of the interaction between the polymer network and the electrolyte anion/cation is an important method to achieve notable thermopower. Here, we demonstrate an ionic hydrogel thermoelectric material with giant negative thermopower obtained by synergistic coordination and hydration interactions. The ionic hydrogel, made of polyvinyl alcohol and sodium hydroxide, is prepared by simple dry-annealed process and exhibits a thermopower of up to -37.61 millivolts per kelvin, an extremely high absolute thermopower for electronic and ionic conductors. This ionic hydrogel is promising for the design of high-thermopower ionic thermoelectric materials and the low-grade heat energy harvesting.
相关链接	[来源记录]
收录类别	SCI ; EI
语种	英语
重要成果	NI论文
学校署名	第一 ; 通讯
资助项目	Guangdong Major Scientific Research Project[2018KZDXM061] ; China Postdoctoral Science Foundation[2019M662196]
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000722215300011
出版者	AMER ASSOC ADVANCEMENT SCIENCE
EI入藏号	20214811240978
EI主题词	Electrolytes ; Energy harvesting ; Hydration ; Hydrogels ; Sodium hydroxide ; Thermoelectric equipment
EI分类号	Energy Conversion Issues:525.5 ; Thermoelectric Energy:615.4 ; Electric Batteries and Fuel Cells:702 ; Colloid Chemistry:801.3 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2
来源库	Web of Science
引用统计	被引频次[WOS]：119
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/257510
专题	工学院_电子与电气工程系
作者单位	Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Guangdong, Peoples R China
第一作者单位	电子与电气工程系
通讯作者单位	电子与电气工程系
第一作者的第一单位	电子与电气工程系
推荐引用方式 GB/T 7714	Chen, Bin,Chen, Qianling,Xiao, Songhua,et al. Giant negative thermopower of ionic hydrogel by synergistic coordination and hydration interactions[J]. Science Advances,2021,7(48).
APA	Chen, Bin,Chen, Qianling,Xiao, Songhua,Feng, Jiansong,Zhang, Xu,&Wang, Taihong.(2021).Giant negative thermopower of ionic hydrogel by synergistic coordination and hydration interactions.Science Advances,7(48).
MLA	Chen, Bin,et al."Giant negative thermopower of ionic hydrogel by synergistic coordination and hydration interactions".Science Advances 7.48(2021).