High-energy, stable and recycled molecular solar thermal storage materials using AZO/graphene hybrids by optimizing hydrogen bonds | |
Luo, Wen1,2; Feng, Yiyu1,2; Qin, Chengqun1,2; Li, Man1,2; Li, Shipei1,2; Cao, Chen1,2; Long, Peng1,2; Liu, Enzuo1; Hu, Wenping3; Yoshino, Katsumi4 | |
刊名 | NANOSCALE
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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. |
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