1D-2D桥连阵列碳基相变材料用于多能转换与存储

Abstract: In response to global energy scarcity, frontiers in multifunctional composite phase change materials (PCMs) with photo-/electro-/magneto-thermal triggers show great potential in multiple energy utilization. However, most available composite PCM candidates are inadequate for multiple energy storage applications simultaneously. Herein, a green synthetic route is proposed to develop bimetallic zeolitic imidazolate framework (ZIF) derived 1D-2D bridged array carbon-based composite PCMs for simultaneous photo-/electro-/magneto-thermal energy storage applications. As graphitization-induced catalyst, Co nanoparticles greatly boost the formation of ZIF derived 1D-2D bridged array carbon framework with high graphitization and low interface electrical/thermal resistance. Benefiting from the broad-band intense photon capture, fast photon/electron/phonon transport, and surface plasma resonance effect of Co nanoparticles, the resulting composite PCMs integrate advanced photothermal, electrothermal, and magnetothermal storage functions. Furthermore, composite PCMs also exhibit long-lasting shape stability, structural stability, thermal storage stability, and photo-/electro-/magneto-thermal storage stability after undergoing multiple heating-cooling cycles. This study is promising to accelerate the major breakthroughs of advanced multifunctional carbon-based composite PCMs toward multiple energy utilization.

Figure 1. Structural analysis. (A) Preparation schematic of 1D-2D bridged array carbon-based Co/TLC@PEG20000 composite PCMs. (B) SEM image of CoZn-ZIF. (C-E) SEM images of Co/TLC. (F, G) SEM images of Co/TLC@PEG20000 before and after thermal cycles.

Figure 2. Structural analysis. (A-C) TEM images of Co/TLC. (D) XRD and (E) Raman spectra of Co/TLC. (F) Nitrogen adsorption-desorption isotherms and pore size distribution of Co/TLC and CoZn-ZIF.

Figure 3. Multiple energy conversion and storage.

文献链接：Xiao Chen1*, Jianhang Xu1, Yang Li, Yan Gao, Ge Wang*. Integrating multiple energy storage in 1D–2D bridged array carbon-based phase change materials. SusMat, 2023, 3, 510-521.