Hydrogen storage in ion-exchanged zeolites

Indicator and Pathogen Removal by Low Impact Development Best Management Practices

“…Zeolites can be found as natural geological deposits or can be chemically synthesized via crystallization followed by binding. Zeolite acts as an effective adsorbent for chemical compounds because of its high specific surface area and porosity, with an abundance of micropores [52,53]. Modification of the sand biofilters with zeolite has been reported in multiple studies [54].…”

Hydrogen Adsorption on Metal Organic Framework Materials for Storage Applications

“…Hydrogen adsorption has been studied for a wide range of porous carbons, [40, silicas, [63,90] aluminas, [63] zeolites, [91][92][93][94][95][96][97] porous polymers, [98][99][100][101][102][103][104][105][106][107] COFs [108][109][110][111][112] and MOFs. [21,27,36,38,39,50,51,54,57,58, Hydrogen adsorption measurements for porous materials carried out at pressures up to 1 bar provide data for calculating the isosteric enthalpies of adsorption at zero surface coverage, which is a measure of the hydrogen surface interaction.…”

“…The smallest micropores contribute more to the hydrogen adsorption uptake at 1 bar than larger pores. [40,77,190] Figure 4.7 shows the variation of hydrogen uptakes at 1 bar and 77 K vs BET surface area for carbons, [40,63,65,67,68,70,71,74,76,78,83,89] silicas, aluminas, zeolites, [63,70,[92][93][94]96] porous polymers, [98][99][100]104] COFs [108,111,112] and MOFs. [21,27,36,38,39,51,57,58,[186][187][188] A spread of results is observed but [40,63,65,67,68,74,[76][77][7...…”

Hydrogen storage in several metal‐phosphate molecular sieves

“…As a result, many investigations have focused on encapsulated hydrogen molecules in microporous media at low temperature. [5][6][7] Molecular sieves, which are rich in abundant cage and channel structures and have high thermal stability, 8 offer great potential for encapsulation of nonpolar gases.…”