Magnetically accelerated thermal energy storage within Fe3O4‐anchored MXene‐based phase change materials
Yan Gao,
Zhaodi Tang,
Xiao Chen,
Jiamin Yan,
Yu Jiang,
Jianhang Xu,
Zhang Tao,
Lei Wang,
Zhimeng Liu,
Ge Wang
Affiliations
Yan Gao
Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule and Structure Construction, School of Materials Science and Engineering University of Science and Technology Beijing Beijing China
Zhaodi Tang
Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule and Structure Construction, School of Materials Science and Engineering University of Science and Technology Beijing Beijing China
Xiao Chen
Institute of Advanced Materials Beijing Normal University Beijing China
Jiamin Yan
Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule and Structure Construction, School of Materials Science and Engineering University of Science and Technology Beijing Beijing China
Yu Jiang
Institute of Advanced Materials Beijing Normal University Beijing China
Jianhang Xu
Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule and Structure Construction, School of Materials Science and Engineering University of Science and Technology Beijing Beijing China
Zhang Tao
Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule and Structure Construction, School of Materials Science and Engineering University of Science and Technology Beijing Beijing China
Lei Wang
Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule and Structure Construction, School of Materials Science and Engineering University of Science and Technology Beijing Beijing China
Zhimeng Liu
Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule and Structure Construction, School of Materials Science and Engineering University of Science and Technology Beijing Beijing China
Ge Wang
Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule and Structure Construction, School of Materials Science and Engineering University of Science and Technology Beijing Beijing China
Abstract Inherent weak photon‐capturing ability is a long‐standing bottleneck for pristine phase change materials (PCMs) in photothermal conversion application. To conquer this difficulty, herein, magnetic Fe3O4 nanoparticles were in situ anchored between the layers and the surface of two‐dimensional MXene for the infiltration of myristic acid (MA) by an in situ chemical anchoring strategy. Benefiting from the synergistic localized surface plasmon resonance effect of MXene and Fe3O4 nanoparticles, our designed MXene@Fe3O4‐MA composite PCMs harvested an ultrahigh photothermal conversion efficiency of 97.7%. During the photothermal conversion process, MXene can capture photons and convert solar energy into heat energy efficiently, and the in situ anchored Fe3O4 nanoparticles further enhanced the photothermal conversion efficiency. Moreover, the introduction of Fe3O4 nanoparticles improved the thermal energy storage density (144.17 J/g) of MXene‐MA composite PCMs since Fe3O4 nanoparticles provided more heterogeneous nucleation sites for MA. Simultaneously, MXene@Fe3O4‐MA composite PCMs were endowed with excellent paramagnetism, and realized efficient magnetic‐thermal conversion. Additionally, MXene@Fe3O4‐MA composite PCMs exhibited excellent energy conversion stability, thermal stability, and reliability after undergoing multiple thermal cycles. Therefore, high‐performance MXene@Fe3O4‐based energy conversion composite PCMs are promising candidates to accelerate efficient utilization of the practical solar energy and magnetic energy
