Inserting Amide into NOTT-101 to Sharply Enhance Volumetric and Gravimetric Methane Storage Working Capacity

Zhang, Minxing; Chen, Cong; Shi, Zhe; Huang, Kun‐Lin; Fu, Wensheng; Zhou, Wei

doi:10.1021/acs.inorgchem.9b01240

Cited by 11 publications

(10 citation statements)

References 39 publications

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“…Strategies that have been developed to date for densifying MOFs are generally incompatible with large pore volume materials, which tend to be more prone to structural collapse. Thus, while recently reported porous materials with ultrahigh surface areas and large pore volumes have been touted as approaching, or even meeting, the DOE targets, volumetric capacities that meet these criteria are invariably based on crystallographic densities. , Without reliable reporting of real material densities or improved methods for densifying porous materials, methods for rapidly assessing real volumetric uptakes for these materials will remain limited.…”

Section: Resultsmentioning

confidence: 99%

Using Low-Pressure Methane Adsorption Isotherms for Higher-Throughput Screening of Methane Storage Materials

Korman

Decker

Dworzak

et al. 2020

ACS Appl. Mater. Interfaces

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A useful correlation between the low-pressure (up to 1.2 bar), low-temperature (195 K) and high-pressure (up to 65 bar), room temperature (298 K) methane storage properties of a range of porous materials is reported. Methane isotherms under these two sets of conditions show a remarkable agreement in both equilibrium adsorption and deliverable capacities for materials with pore volumes that are less than approximately 0.80 cm3/g. This trend holds well for the suite of metal-organic frameworks and porous coordination cages we studied, in addition to a zeolite and porous organic cage. Although it is well known that gravimetric gas storage capacity trends with gravimetric surface area, the 1.2 bar, 195 K excess adsorption capacity of a given framework is a better indicator of its room temperature, 65 bar capacity. Given the significantly smaller sample quantities needed for low-pressure measurements, greater accessibility to researchers around the world, accuracy of the measurement, and higher throughput, we envision this method as a rapid screening tool for the identification of methane storage materials. As excess/total adsorption and gravimetric/volumetric adsorption can be interconverted by simple utilization of the scalar quantities of pore volume or density, respectively, this method can be easily adapted to obtain both gravimetric and volumetric total adsorption capacities for a given adsorbent. In terms of volumetric methane adsorption, we further investigate the relationship between crystallographic and bulk density for the adsorbents studied here. With this analysis, it becomes apparent that in the absence of novel synthetic approaches, reported volumetric storage capacities should be viewed as an optimistic upper limit for a given material and not necessarily a true reflection of its actual adsorption properties as most MOFs have bulk densities that are less than half of their crystallographic values.

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Section: Resultsmentioning

confidence: 99%

Using Low-Pressure Methane Adsorption Isotherms for Higher-Throughput Screening of Methane Storage Materials

Korman

Decker

Dworzak

et al. 2020

ACS Appl. Mater. Interfaces

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“…NOTT-101's organic linker was modified to include an amide group to increase methane storage capacity [118]. This resulted in the discovery of an amide functionalized MOF called NJU-Bai45.…”

Section: Functionalization Of Mofsmentioning

confidence: 99%

Evolution of the Design of CH4 Adsorbents

Mahmoud

2020

Surfaces

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In this review, the evolution of paradigm shifts in CH4 adsorbent design are discussed. The criteria used as characteristic of paradigms are first reports, systematic findings, and reports of record CH4 storage or deliverable capacity. Various paradigms were used such as the systematic design of micropore affinity and pore size, functionalization, structure optimization, high throughput in silico screening, advanced material property design which includes flexibility, intrinsic heat management, mesoporosity and ultraporosity, and process condition optimization. Here, the literature is reviewed to elucidate how the approach to CH4 adsorbent design has progressed and provide strategies that could be implemented in the future.

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“…The experimental results presented above illustrated that modified NOTT-101 with not only a similar pore geometry but also opening pore spaces is successfully obtained by applying the ligand tailoring strategy without designing new complex ligands. It should be noted that fine-tuning of the pore geometry and the aromatic groups on the host framework skeleton of this family of NbO-type MOFs can systematically affect their binding affinity for methane and effectively optimize their methane storage working capacity. ,− Therefore, the high-pressure methane sorption isotherms of high-quality NOTT-101 and its modified form, NOTT-101-IPA, we prepared were recorded for comparison.…”

Section: Results and Discussionmentioning

confidence: 99%

“…Among them, the volumetric uptake of the benchmark MOF HKUST-1 reached 267 cm 3 (STP) cm –3 at 298 K and 65 bar and that of flexible MOF Co(bdp) broke the limitation of rigid MOFs and recorded a volumetric working capacity of 197 cm 3 (STP) cm –3 at 298 K and 5–65 bar . It is notable that due to the high porosity and appropriate adsorption site arrangement, a series of NbO-type MOFs (i.e., MOF-505 and its analogues) show excellent methane storage performance, ,− and the volumetric working capacity of the most representative one, UTSA-76, reached 197 cm 3 (STP) cm –3 at 298 K and 5–65 bar …”

Section: Introductionmentioning

confidence: 99%

Ligand Tailoring Strategy of a Metal–Organic Framework for Optimizing Methane Storage Working Capacities

Chen

Luo

et al. 2022

Inorg. Chem.

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Methane, as the main component of natural gas, shale gas, and marsh gas, is regarded as an ideal clean energy to replace traditional fossil fuels and reduce carbon emissions. Porous materials with superior methane storage capacities are the key to the wide application of adsorbed natural gas technology in vehicle transportation. In this work, we applied a ligand tailoring strategy to a metal–organic framework (NOTT-101) to fine-tune its pore geometry, which was well characterized by gas and dye sorption measurements. High-pressure methane sorption isotherms revealed that the methane storage performance of the modified NOTT-101 can be effectively improved by decreasing the unusable uptake at 5 bar and increasing the total uptake under high pressures, achieving a substantially high volumetric methane storage working capacity of 190 cm3 (STP) cm–3 at 298 K and 5–80 bar.

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Inserting Amide into NOTT-101 to Sharply Enhance Volumetric and Gravimetric Methane Storage Working Capacity

Cited by 11 publications

References 39 publications

Using Low-Pressure Methane Adsorption Isotherms for Higher-Throughput Screening of Methane Storage Materials

Using Low-Pressure Methane Adsorption Isotherms for Higher-Throughput Screening of Methane Storage Materials

Evolution of the Design of CH4 Adsorbents

Ligand Tailoring Strategy of a Metal–Organic Framework for Optimizing Methane Storage Working Capacities

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