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Updated: Jul 18, 2025

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工程 2D MXene 和 LDH 进入 3D 空洞框架,以促进光热能量储存和微波吸收

Yan Gao¹, Jinjie Lin², Xiao Chen³

¹Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China.

Small (Weinheim an der Bergstrasse, Germany)

|August 22, 2023

概括

这项研究使用MXene和多层双氧化物 (LDH) 设计了一个3D空心框架,以创建先进的相变材料 (PCM). 由此产生的复合材料表现出增强的光热能量存储和高效的微波吸收.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
储能储能储能储能储能储能

背景情况:

2D MXene在光热转换和微波吸收方面表现有前途,但患有聚合和有限的介电/磁性损失.
需要有效的策略来克服这些局限性,以实现实际应用.

研究的目的:

开发一种新型的3D空心框架,集成MXene和分层双氧化物 (LDH),以增强能量存储和微波吸收.
提高相变材料 (PCM) 的光热能转换效率和热能存储密度.

主要方法:

通过静电组装2D MXene和由ZIF-67衍生的LDH制造3D空心框架 (LDH@MXene).
化以创建Co纳米粒子修饰的C-LDH@MXene框架,并用石 (PW) 封装以形成C-LDH@MXene-PW复合PCM.

主要成果:

3D空洞C-LDH@MXene框架有效地防止了MXene聚合,并实现了131.04 J g-1.1的高热能存储密度.
由于改进的导电网络和LSPR效应,C-LDH@MXene-PW复合PCM显示了高光热储能效率96.52%.
观察到有效的微波吸收,在13.30GHz时的最小反射损失为-20.87dB,厚度为2mm.

结论:

设计的3D空心C-LDH@MXene框架为开发集成复合材料提供了一个有希望的策略.
这种方法显著提高光热能储存和微波吸收能力,解决2D MXene的主要局限性.

关键词:

2D MXeneene 的使用情况金属有机框架的框架.微波吸收方式微波吸收方式阶段变化材料阶段变化材料光热转换和储存的方法

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