Influence of defect engineering on the hydrogen and methane adsorption capacity in HKUST-1 – like structure MOF

Samples with HKUST-1-like structure were modified by the substitution of trimesic acid (BTC) by isophthalic acid (iBDC). HKUST-1-like structure was monitored by XRD, finding no changes up to a BTC molar fraction (XBTC) equal to 0.67. The substitution of BTC by iBDC produced an increase of defects observed by SEM and led to a greater specific surface area. The increase in N2 molecules adsorption was correlated with a 10% increase in H2 uptake at 8 bar and 77 K. Interestingly, the ligand substitution showed no effects on methane uptake up to 40 bar and 298 K. The defect engineering showed to be a useful tool to increase the uptake of polar molecules with surface.

Palabras clave: HYDROGEN , METHANE , ADSORPTION , MOF , HKUST-1

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Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)

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URI: http://hdl.handle.net/11336/252490

URL: https://link.springer.com/article/10.1007/s10450-023-00413-y

DOI: http://dx.doi.org/10.1007/s10450-023-00413-y

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Articulos(INFAP)
Articulos de INST. DE FISICA APLICADA "DR. JORGE ANDRES ZGRABLICH"

Citación

Gauna, Pablo S.; Garcia Blanco, Andres Alberto; Barrera Diaz, Deicy Amparo; Villarroel Rocha, Jhonny; Hinestroza, Juan P.; et al.; Influence of defect engineering on the hydrogen and methane adsorption capacity in HKUST-1 – like structure MOF; Springer; Adsorption; 29; 7-8; 10-2023; 351-361

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