Phase‐Changing Microcapsules Incorporated with Black Phosphorus for Efficient Solar Energy Storage

Advanced Science - Tập 7 Số 23 - 2020
Hao Huang1,2, Tongyu Shi1,2, Rui He1, Jiahong Wang3,1,2, Paul K. Chu3, Xue‐Feng Yu1,2
1Shenzhen Engineering Center for the Fabrication of Two-dimensional Atomic Crystals, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P. R. China
2University of Chinese Academy of Sciences, Beijing 100049, P.R. China
3Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China

Tóm tắt

AbstractA new solar energy storage system is designed and synthesized based on phase‐changing microcapsules incorporated with black phosphorus sheets (BPs). BPs are 2D materials with broad light absorption and high photothermal performance, which are synthesized and covalently modified with poly(methyl methacrylate) (PMMA) to produce the PMMA‐modified BPs (mBPs). With the aid of PMMA, the mBPs and phase‐changing materials (PCM, eicosane) are encapsulated together to form microcapsules. The microencapsulated eicosane and mBPs (mBPs‐MPCM) composites exhibit a high latent heat of over 180 kJ kg−1, good thermal reliability, as well as excellent photothermal characteristics inherited from BPs. Owing to the direct contact in the integrated mBPs‐MPCM composites, the thermal energy generated by mBPs is transferred to eicosane immediately giving rise to three times higher efficiency in solar energy storage compared to microcapsules with mBPs on the surface. The mBPs‐MPCM composites have great potential in solar energy storage applications and the concept of integrating photothermal materials and PCMs as the core provides insights into the design of high‐efficiency solar energy storage materials.

Từ khóa


Tài liệu tham khảo

10.1126/science.aad1920

10.1038/nenergy.2015.20

10.1016/j.rser.2010.11.032

10.1126/science.1239176

10.1002/adma.201600305

10.1016/j.apenergy.2012.11.051

Klemmed B., 2019, Angew. Chem., 131, 2, 10.1002/ange.201813331

10.1021/acsami.8b20653

10.1126/sciadv.aax0763

Colangelo G., 2016, Renewable Sustainable Energy Rev., 57, 1141, 10.1016/j.rser.2015.12.142

10.1016/j.pmatsci.2014.03.005

10.1016/j.rser.2012.10.022

10.1016/j.nanoen.2015.02.016

10.1016/j.rser.2015.09.040

10.1021/acs.langmuir.8b03084

10.1021/acssuschemeng.7b00321

10.1016/j.nanoen.2018.09.018

10.1021/acsnano.6b07126

10.1039/C6TA07144A

10.1038/nnano.2014.35

10.1002/adma.201803641

10.1002/adma.201804770

10.1002/anie.201506154

10.1002/aenm.201702093

10.1016/j.mtener.2018.12.004

10.1021/acs.chemmater.7b05298

10.1016/j.solmat.2010.05.021

10.1038/nchem.2505

10.1038/ncomms9563

10.1002/1097-0126(200010)49:10<1183::AID-PI584>3.0.CO;2-7

10.1016/j.solmat.2017.04.014

10.1016/j.apenergy.2018.04.013

10.1016/j.apenergy.2013.08.048