Scattered Co-anchored MoS_(2)synergistically boosting photothermal capture and storage of phase change materials  

作　　者：Yang Li Panpan Liu Yan Gao Yuhao Feng Peicheng Li Xiao Chen 

机构地区：[1]Institute of Advanced Materials,Beijing Normal University,Beijing 100875,China [2]School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China [3]School of Environment,Beijing Normal University,Beijing 100875,China

出　　处：《Journal of Energy Chemistry》2024年第8期208-215,I0005,共9页能源化学（英文版）

基　　金：financially supported by National Natural Science Foundation of China(No.51902025)。

摘　　要：Pristine phase change materials(PCMs)suffer from inherent deficiencies of poor solar absorption and photothermal conversion.Herein,we proposed a strategy of co-incorporation of zero-dimensional(OD)metal nanoparticles and two-dimensional(2D)photothermal materials in PCMs for efficient capture and conversion of solar energy into thermal energy.Highly scattered Co-anchored MoS_(2)nanoflower cluster serving as photon and phonon triggers was prepared by in-situ hydrothermal growth of ZIF67 polyhedron on 2D MoS_(2)and subsequent high-temperature carbonization.After encapsulating thermal storage unit(paraffin wax),the obtained composite PCMs integrated high-performance photothermal conversion and thermal energy storage capability.Benefiting from the synergistic enhancement of OD Co nanoparticles with localized surface plasmon resonance effect,carbon layer with the conjugation effect and 2D MoS_(2)with strong solar absorption,composite PCMs exhibited a high photothermal conversion efficiency of 95.19%,Additionally,the resulting composite PCMs also demonstrated long-term thermal sto rage stability and durable structu ral stability after 300 thermal cycles.The proposed collabo rative co-incorporation strategy provides some innovative references for developing next-generation photothermal PCMs in solar energy utilization.

关 键 词：Phase change materials Photothermal conversion Thermal energy storage 

分 类 号：TB34[一般工业技术—材料科学与工程]