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High Working Capacity Acetylene Storage at Ambient Temperature Enabled by a Switching Adsorbent Layered Material
- Source :
- ACS Applied Materials & Interfaces
- Publication Year :
- 2021
- Publisher :
- American Chemical Society (ACS), 2021.
-
Abstract
- Unlike most gases, acetylene storage is a challenge because of its inherent pressure sensitivity. Herein, a square lattice (sql) coordination network [Cu(4,4′-bipyridine)2(BF4)2]n (sql-1-Cu-BF4) is investigated with respect to its C2H2 sorption behavior from 189 to 298 K. The C2H2 sorption studies revealed that sql-1-Cu-BF4 exhibits multistep isotherms that are temperature-dependent and consistent with the transformation from “closed” (nonporous) to four “open” (porous) phases induced by the C2H2 uptake. The Clausius–Clapeyron equation was used to calculate the performance of sql-1-Cu-BF4 for C2H2 storage at pressures >1 bar, which revealed that its volumetric working capacity at 288 K is slightly superior to acetone (174 vs 170 cm3 cm–3) over a safer pressure range (1–3.5 vs 1–15 bar). Molecular simulations provided insights into the observed switching phenomena, revealing that the layer expansion of sql-1-Cu-BF4 occurs via intercalation and inclusion of C2H2. These results indicate that switching adsorbent layered materials offer promise for utility in the context of C2H2 storage and delivery.
- Subjects :
- Materials science
Intercalation (chemistry)
flexible metal−organic material
Context (language use)
Sorption
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
acetylene storage
0104 chemical sciences
chemistry.chemical_compound
Adsorption
Chemical engineering
Acetylene
chemistry
stepped sorption isotherms
General Materials Science
structural switching
0210 nano-technology
Porosity
Porous medium
2D coordination network
Research Article
Bar (unit)
Subjects
Details
- ISSN :
- 19448252 and 19448244
- Volume :
- 13
- Database :
- OpenAIRE
- Journal :
- ACS Applied Materials & Interfaces
- Accession number :
- edsair.doi.dedup.....c4133e2d48669353e641503562da4677