多孔三维铜-MOF：制备及在超级电容器、低温储氢和气体分离中的应用

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Inorganica Chimica Acta Pub Date : 2024-10-28 DOI:10.1016/j.ica.2024.122414

Yaqing Zhang, Yujuan Zhang, Tuoping Hu

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引用次数: 0

摘要

金属有机框架（MOFs）因其独特的多孔性，在气体吸附和分离领域有着广阔的应用前景。然而，多功能 MOFs 的合成仍然是一个巨大的挑战。本文设计并合成了孔隙率为 62.0 % 的{[Cu2(TPTA)(H2O)2]-2DMF-NMP-4H2O}n 多功能 Cu-MOF。在 77 K 和 1 bar 条件下，Cu-MOF 对 H2 的吸附量约为 289.2 cm3 g-1。同时，Cu-MOF 对 CO2 对 CH4（V:V = 0.5:0.5）、CO2/N2（V:V = 0.5:0.5）和 CO2/H2 （V:V = 0.5:0.5）的选择性吸附分别为 95.1、139.2 和 147.5，是之前报道的 Cu-MOF 的 1.5 倍。Cu-MOF@NF//AC 不对称超级电容器具有很高的比电容（53.4 F g-1）和稳定性（2000 次循环后为 90.3%）。此外，这项研究还提出了一种设计具有低温储氢、气体分离和储能特性的多功能材料的新方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

A porous three-dimensional Cu-MOF: Preparation and application in supercapacitors, low temperature hydrogen storage and gas separation

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A porous three-dimensional Cu-MOF: Preparation and application in supercapacitors, low temperature hydrogen storage and gas separation

Due to its unique porosity, metal–organic frameworks (MOFs) have great application prospects in the fields of gas adsorption and separation. However, the synthesis of multi-functional MOFs is still a great challenge. Herein, a multi-functional Cu-MOF of {[Cu₂(TPTA)(H₂O)₂]·2DMF·NMP·4H₂O}n with a porosity of 62.0 % was designed and synthesized. The H₂ adsorption amount of Cu-MOF is about 289.2 cm³ g⁻¹ at 77 K and 1 bar. Meanwhile, the selectivity adsorption of Cu-MOF towards CO₂ over CH₄ (V:V = 0.5:0.5), CO₂/N₂ (V:V = 0.5:0.5) and CO₂/H₂ (V:V = 0.5:0.5) is 95.1, 139.2 and 147.5, respectively, which is 1.5 times higher than the previously reported Cu-MOFs. The Cu-MOF@NF//AC asymmetric supercapacitor demonstrates high specific capacitance (53.4 F g⁻¹) and stability (90.3 % after 2000 cycles). Furthermore, this work presents a novel approach to design multifunctional materials with low temperature hydrogen storage, gas separation and energy storage properties.

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来源期刊

Inorganica Chimica Acta 化学-无机化学与核化学

CiteScore

6.00

自引率

3.60%

发文量

440

审稿时长

35 days

期刊介绍： Inorganica Chimica Acta is an established international forum for all aspects of advanced Inorganic Chemistry. Original papers of high scientific level and interest are published in the form of Articles and Reviews. Topics covered include: • chemistry of the main group elements and the d- and f-block metals, including the synthesis, characterization and reactivity of coordination, organometallic, biomimetic, supramolecular coordination compounds, including associated computational studies; • synthesis, physico-chemical properties, applications of molecule-based nano-scaled clusters and nanomaterials designed using the principles of coordination chemistry, as well as coordination polymers (CPs), metal-organic frameworks (MOFs), metal-organic polyhedra (MPOs); • reaction mechanisms and physico-chemical investigations computational studies of metalloenzymes and their models; • applications of inorganic compounds, metallodrugs and molecule-based materials. Papers composed primarily of structural reports will typically not be considered for publication.