Mesoporous MCM-41 material for hydrogen storage: A short review

Dündar-Tekkaya, Ezgi; Yürüm, Yuda

doi:10.1016/j.ijhydene.2016.03.050

Cited by 80 publications

(34 citation statements)

References 63 publications

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“…The storage capacities of some highly porous MOFs [ 12 ] (>14 wt% under 70 bar, 77 K) are much higher than those of traditional porous materials such as zeolite and activated carbon (<7 wt%). [ 3,13 ]…”

Section: Figurementioning

confidence: 99%

Optimization of the Pore Structures of MOFs for Record High Hydrogen Volumetric Working Capacity

et al. 2020

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Metal–organic frameworks (MOFs) are promising materials for onboard hydrogen storage thanks to the tunable pore size, pore volume, and pore geometry. In consideration of pore structures, the correlation between the pore volume and hydrogen storage capacity is examined and two empirical equations are rationalized to predict the hydrogen storage capacity of MOFs with different pore geometries. The total hydrogen adsorption under 100 bar and 77 K is predicted as ntot= 0.085× Vp − 0.013× Vp2 for cage‐type MOFs and ntot= 0.076× Vp − 0.011× Vp2 for channel‐type MOFs, where Vp is the pore volume of corresponding MOFs. The predictions by these empirical equations are validated by several MOFs with an average deviation of 5.4%. Compared with a previous equation for activated carbon materials, the empirical equations demonstrate superior accuracy especially for MOFs with high surface area (i.e., SBET over ≈3000 m2 g−1). Guided by these empirical equations, a highly porous Zr‐MOF NPF‐200 (NPF: Nebraska Porous Framework) is examined to possess outstanding hydrogen total adsorption capacity (65.7 mmol g−1) at 77 K and record high volumetric working capacity of 37.2 g L−1 between 100 and 5 bar at 77 K.

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Section: Figurementioning

confidence: 99%

Optimization of the Pore Structures of MOFs for Record High Hydrogen Volumetric Working Capacity

et al. 2020

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“…The adsorption of hydrogen on porous adsorbents is widely studied for hydrogen storage applications at different pressures. In recent years, several porous materials such as activated carbon, single and multiwalled carbon nanotubes (SWCNT and MWCNT), zeolites, MCM-41 and metal organic frameworks (MOFs) have been proposed as good adsorbents for hydrogen adsorption [1][2][3][4][5][6]. Four methods for hydrogen storage can be anticipated: liquefaction, compression, physical sorption and storage in the form of metallic hydrides.…”

Section: Introductionmentioning

confidence: 99%

“…MCM-41, which is a type of zeolite, is a member of mesoporous adsorbents family. MCM-41 has good chemical, mechanical and thermal stability, high surface area, uniform mesoporous structure, as a result of which it may be considered as a good adsorbent for hydrogen sorption [6]. Sheppard and Buckley [11] reported that pure MCM-41 samples having surface areas of 916-1060 m 2 /g adsorbed 2.01 wt % of hydrogen at 77 K. Park et al [12] have reported that the H 2 storage of MCM-41 at 298 K and 9.5 MPa was 0.68 wt % when incorporated with nickel (Ni-MCM41).…”

Section: Introductionmentioning

confidence: 99%

Freundlich, Langmuir, Temkin and Harkins-Jura Isotherms Studies of H2 Adsorption on Porous Adsorbents

Erdoğan¹

2019

ChChT

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The hydrogen adsorption and desorption isotherms of multiwalled carbon nanotube sample (MWCNT), an iron loaded multiwalled carbon nanotube (Fe_MWCNT), two zeolites (Na_Y_Zeo and NH4_Y_Zeo) and MCM-41 were measured at 77 K and atmospheric pressure by using the volumetric adsorption apparatus. The adsorption data were evaluated by several isotherm equations such as Langmuir, Freundlich, Temkin and Harkins-Jura isotherm models but were best described by the Freundlich isotherm model as it gave the highest correlation. The amount of adsorbed hydrogen by weight depended on the micropore volume of the sample, except for MWCNT and Fe_MWCNT. The porous samples were characterized by scanning electron microscopy (SEM) and N 2 adsorption isotherms. The maximum hydrogen storage of 1.96 wt % at 77 K was achieved by Fe_MWCNT. Microporous Na_Y_Zeo and NH 4 _Y_Zeo showed higher hydrogen adsorption capacities than the mesoporous MCM-41. The hydrogen adsorption properties of these porous adsorbents may be further enhanced by different metal doping, thus paving the way for further study.

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“…Interest in porous silicas based on CTA salts is rooted in the discovery of ordered mesoporous MCM‐41, formed by condensation of silica on micellar rod arrays of the surfactant (e.g., CTA + Br – ) , . Beneficial properties of this class of mesoporous silicas are the high surface area, uniform pore size and high adsorption capacity , . But, they usually exhibit a low hydrothermal stability and display low catalytic performance, which is mainly due to the weak acidity of the protons arising from introduction of Al in the amorphous silica network .…”

Section: Introductionmentioning

confidence: 99%

The Important Role of Rubidium Hydroxide in the Synthesis of Hierarchical ZSM‐5 Zeolite Using Cetyltrimethylammonium as Structure‐Directing Agent

et al. 2019

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Mesoporous MCM-41 material for hydrogen storage: A short review

Cited by 80 publications

References 63 publications

Optimization of the Pore Structures of MOFs for Record High Hydrogen Volumetric Working Capacity

Optimization of the Pore Structures of MOFs for Record High Hydrogen Volumetric Working Capacity

Freundlich, Langmuir, Temkin and Harkins-Jura Isotherms Studies of H2 Adsorption on Porous Adsorbents

The Important Role of Rubidium Hydroxide in the Synthesis of Hierarchical ZSM‐5 Zeolite Using Cetyltrimethylammonium as Structure‐Directing Agent

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