Comparative Analysis of 3D Graphene-LiOH center dot H2O Composites by Modification with Phytic Acid and Ascorbic Acid for Low-Grade Thermal Energy Storages

doi:10.1002/ente.202001086

	Comparative Analysis of 3D Graphene-LiOH center dot H2O Composites by Modification with Phytic Acid and Ascorbic Acid for Low-Grade Thermal Energy Storages
	Li, Lin 1,3,6; Li, Shijie 2; Zeng, Tao 3,6; Deng, Lisheng 3,6; Huang, Hongyu 3,6; Li, Jun 3,6; Kobayshi, Noriyuki 5; Liu, Lin 3,6; Zhou, You 4
刊名	ENERGY TECHNOLOGY
	2021-04-14
页码	10
关键词	3D graphene ascorbic acid lithium hydroxide monohydrate nanoparticles phytic acid thermochemical storages
ISSN号	2194-4288
DOI	10.1002/ente.202001086
通讯作者	Zeng, Tao(zengtao@ms.giec.ac.cn) ; Huang, Hongyu(huanghy@ms.giec.ac.cn)
英文摘要	3D Graphene (3D-GF) modified with different additive concentrations (phytic acid [PA] and ascorbic acid [AA]) is developed and then combined with different LiOH contents by the hydrothermal method to obtain composite materials. It can be found that the addition of PA and AA will not destroy the carbon skeleton structure of 3D-GF. With increasing additive content, the thermal conductivities of modified 3D-GF first increase and reach their maximum values at 8 mg mL(-1). The modified 3D-GF with the highest thermal conductivity is selected to be combined with different LiOH contents. The addition of PA and AA can broaden the charging temperature range from 60-110 to 30-200 degrees C and improve the LiOH hydration rate and heat storage density. Compared with the PA-modified composite, the AA-modified composite shows smaller (about 7.6 nm) and more uniform LiOH.H2O particles (the particles size standard deviation of 3D-GF-AA-LiOH.H2O is 1.1503), a larger specific surface area (119 m(2) g(-1)), higher heat storage density (the highest value of 2763 kJ kg(-1) for LiOH.H2O, which can be about 4.2 times of pure LiOH), and less influenced by the change of LiOH content (the thermal conductivity standard deviation of 3D-GF-AA-LiOH.H2O is 0.123).
资助项目	Key Research Program of Frontier Sciences, Chinese Academy of Sciences, China[QYZDY-SSW-JSC038] ; Science and Technology project of China Energy Investment Corporation[GJNY-20-121] ; Science Technology Planning Project of Guangdong Province, China[2017A050501046]
WOS研究方向	Energy & Fuels
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000640099000001
资助机构	Key Research Program of Frontier Sciences, Chinese Academy of Sciences, China ; Science and Technology project of China Energy Investment Corporation ; Science Technology Planning Project of Guangdong Province, China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/33000]
专题	中国科学院广州能源研究所
通讯作者	Zeng, Tao; Huang, Hongyu
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Shanxi Datong Univ, Inst Carbon Mat Sci, Datong 037009, Shanxi, Peoples R China 3.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 4.China Energy Investment Corp Ltd, Natl Inst Clean & Low Carbon Energy, Beijing 102211, Peoples R China 5.Nagoya Univ, Dept Chem Engn, Nagoya, Aichi 4648603, Japan 6.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Li, Lin,Li, Shijie,Zeng, Tao,et al. Comparative Analysis of 3D Graphene-LiOH center dot H2O Composites by Modification with Phytic Acid and Ascorbic Acid for Low-Grade Thermal Energy Storages[J]. ENERGY TECHNOLOGY,2021:10.
APA	Li, Lin.,Li, Shijie.,Zeng, Tao.,Deng, Lisheng.,Huang, Hongyu.,...&Zhou, You.(2021).Comparative Analysis of 3D Graphene-LiOH center dot H2O Composites by Modification with Phytic Acid and Ascorbic Acid for Low-Grade Thermal Energy Storages.ENERGY TECHNOLOGY,10.
MLA	Li, Lin,et al."Comparative Analysis of 3D Graphene-LiOH center dot H2O Composites by Modification with Phytic Acid and Ascorbic Acid for Low-Grade Thermal Energy Storages".ENERGY TECHNOLOGY (2021):10.