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Updated: Jan 17, 2026

Ammonia Synthesis at Low Pressure

Ammonia Synthesis at Low Pressure

Published on: August 23, 2017

通过NH₄Cl浸MIL-101(Cr) 提高氨吸附性能,用于低等级热利用

Hiluf T Fissaha¹, Dhavalkumar N Joshi¹, Duckjong Kim¹

¹School of Mechanical and Aerospace Engineering, Gyeongsang National University, Jinju 52828, Republic of Korea.

ACS applied materials & interfaces

|September 15, 2025

概括

研究人员开发了先进的氨 (NH3) 吸附剂,使用NH4Cl浸的MIL-101 (Cr) 复合材料来有效地储存热能. 这些材料在低温加热和冷却系统中表现出更好的性能.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
储能储能储能储能储能储能

背景情况:

高效的氨 (NH3) 吸附/脱附对于吸附驱动的热能储存 (TES) 和空调系统至关重要.
金属有机框架 (MOF) 为气体吸附应用提供可调节的孔隙性和表面积.

研究的目的:

为了合成和表征NH4Cl浸的MIL-101 (Cr) 复合材料,以提高NH3吸附性能.
调查NH4Cl和MIL-101 (Cr) 对NH3吸附-脱附动力学和稳定性的协同作用.

主要方法:

用NH4Cl浸的MIL-101 (Cr) 复合材料的合成.
在高压条件下材料结构和NH3吸附特性的表征.
评估循环稳定性和溶解效率.

主要成果:

优化的复合材料 (MN1.70) 在6.2 bar和25 °C时实现了0.79 ± 0.02 g/g的NH3吸收.
该材料表现出极好的可逆性和快速吸附率 (∼0.14 mg/g/s).
系统层面的分析显示,与现有的TES系统相比,储能容量有7%的改善.

结论:

NH4Cl-MOF复合材料显示出基于低温NH3的热能管理的巨大潜力.
这些材料对利用废热和可再生能源的工业应用具有前景.
协同架构增强了吸附动力学,循环稳定性和脱吸效率.

关键词:

吸附-脱吸性能吸附-脱吸性能以氨为基础的热能储存.高压氨吸附材料的高压氨吸附材料低温热源的利用低温热源的利用用盐浸的MOFs可以使用.

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