Polymer-Based Shaping Strategy for Zeolite Templated Carbons (ZTC) and Their Metal Organic Framework (MOF) Composites for Improved Hydrogen Storage Properties

Abstract

Porous materials such as metal organic frameworks (MOFs), zeolite templated carbons (ZTC), and some porous polymers have endeared the research community for their attractiveness for hydrogen (H 2) storage applications. This is due to their remarkable properties, which among others include high surface areas, high porosity, tunability, high thermal, and chemical stability. However, despite their extraordinary properties, their lack of processability due to their inherent powdery nature presents a constraining factor for their full potential for applications in hydrogen storage systems. Additionally, the poor thermal conductivity in some of these materials also contributes to the limitations for their use in this type of application. Therefore, there is a need to develop strategies for producing functional porous composites that are easy-to-handle and with enhanced heat transfer properties while still retaining their high hydrogen adsorption capacities. Herein, we present a simple shaping approach for ZTCs and their MOFs composite using a polymer of intrinsic microporosity (PIM-1). The intrinsic characteristics of the individual porous materials are transferred to the resulting composites leading to improved processability without adversely altering their porous nature. The surface area and hydrogen uptake capacity for the obtained shaped composites were found to be within the range of 1,054-2,433 m 2 g −1 and 1.22-1.87 H 2 wt. %, respectively at 1 bar and 77 K. In summary, the synergistic performance of the obtained materials is comparative to their powder counterparts with additional complementing properties.

Renewable hydrogen for the chemical industry

“…This includes microporous materials, interstitial metal hydrides, and complex hydrides. Microporous materials, including carbon materials, [147][148][149][150][151][152] zeolites, [153][154][155][156][157][158] and metal organic frameworks (MOFs), [159][160][161][162][163] can absorb molecular hydrogen in their porous structures at low temperature. 152,164,165 The hydrogen storage capacity then depends upon the specific surface areas and the applied pressure.…”

Facile synthesis of M2(m‐dobdc) (M = Fe and Mn) metal‐organic frameworks for remarkable hydrogen storage

“…MOF has a variety of applications such as gas (H 2 , CH 4 , etc.) storage, CO 2 capture, and hydrocarbon separators 9,16‐18 . The number of single metal‐based frameworks have been developed by different research groups along with several of applications 11,16,19‐22 .…”

A UCMPs@MIL-100 based thermo-sensitive molecularly imprinted fluorescence sensor for effective detection of β-lactoglobulin allergen in milk products

“…However, the adverse factors such as poor dispersion, small specific surface area and unstable luminescence limit the further application of single-component materials. Composite materials prepared by coating the UCMPs surface can solve these problems [ 27 , 28 ]. Metal–organic frameworks (MOFs) is a kind of crystalline material with regular network topology formed by self-assembly of nitrogen or oxygen-containing organic ligands and metal centers [ 29 – 31 ].…”