High-energy, stable and recycled molecular solar thermal storage materials using AZO/graphene hybrids by optimizing hydrogen bonds

	High-energy, stable and recycled molecular solar thermal storage materials using AZO/graphene hybrids by optimizing hydrogen bonds
	Luo, Wen 1,2; Feng, Yiyu 1,2; Qin, Chengqun 1,2; Li, Man 1,2; Li, Shipei 1,2; Cao, Chen 1,2; Long, Peng 1,2; Liu, Enzuo 1; Hu, Wenping 3; Yoshino, Katsumi 4
刊名	NANOSCALE
	2015
卷号	7 期号:39 页码:16214-16221
英文摘要	An important method for establishing a high-energy, stable and recycled molecular solar heat system is by designing and preparing novel photo-isomerizable molecules with a high enthalpy and a long thermal life by controlling molecular interactions. A meta-and ortho-bis-substituted azobenzene chromophore (AZO) is covalently grafted onto reduced graphene oxide (RGO) for solar thermal storage materials. High grafting degree and close-packed molecules enable intermolecular hydrogen bonds (H-bonds) for both trans-(E) and cis-(Z) isomers of AZO on the surface of nanosheets, resulting in a dramatic increase in enthalpy and lifetime. The metastable Z-form of AZO on RGO is thermally stabilized with a half-life of 52 days by steric hindrance and intermolecular H-bonds calculated using density functional theory (DFT). The AZO-RGO fuel shows a high storage capacity of 138 Wh kg(-1) by optimizing intermolecular H-bonds with a good cycling stability for 50 cycles induced by visible light at 520 nm. Our work opens up a new method for making advanced molecular solar thermal storage materials by tuning molecular interactions on a nano-template.
收录类别	SCI
语种	英语
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/28887]
专题	化学研究所_有机固体实验室
作者单位	1.Tianjin Univ, Sch Mat Sci & Engn, Tianjin Key Lab Composite & Funct Mat, Tianjin 300072, Peoples R China 2.Tianjin Univ, Sch Mat Sci & Engn, Key Lab Adv Ceram & Machining Tech, Chinese Educ Minist, Tianjin 30072, Peoples R China 3.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Organ Solids, Beijing 100190, Peoples R China 4.Shimane Inst Ind Technol, Mastue, Shimane 6900816, Japan
推荐引用方式 GB/T 7714	Luo, Wen,Feng, Yiyu,Qin, Chengqun,et al. High-energy, stable and recycled molecular solar thermal storage materials using AZO/graphene hybrids by optimizing hydrogen bonds[J]. NANOSCALE,2015,7(39):16214-16221.
APA	Luo, Wen.,Feng, Yiyu.,Qin, Chengqun.,Li, Man.,Li, Shipei.,...&Feng, Wei.(2015).High-energy, stable and recycled molecular solar thermal storage materials using AZO/graphene hybrids by optimizing hydrogen bonds.NANOSCALE,7(39),16214-16221.
MLA	Luo, Wen,et al."High-energy, stable and recycled molecular solar thermal storage materials using AZO/graphene hybrids by optimizing hydrogen bonds".NANOSCALE 7.39(2015):16214-16221.