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- Title
Quantum Physisorption of Gas in Nanoporous Media: A New Perspective.
- Authors
Li, Junqian
- Abstract
Although numerous investigations have revealed the gas physisorption characteristics of porous media, the essence of physisorption behavior of gas within nanoscale space is still indistinct. We speculated that the physisorption behavior of a complex molecular system (e.g., CH4 and CO2) exhibits a quantum effect due to the confinement effect of nanopores. Gas molecules occur in varied orbitals following certain probabilities and, therefore, have separate energy levels inside a nanoscale space. Energy level transition of molecules from excited state to ground state triggers gas physisorption, while non-uniform spatial distribution of energy-quantized molecules within nanopores dominates the gas physisorption behavior. The spatial distribution of gas molecules can be adjusted by temperature, pressure and potential energy field. Based on the quantum effect, we developed a physisorption equation from the perspective of quantum mechanics to re-understand the basic principles of gas physisorption within nanopores.
- Subjects
QUANTUM gases; ENERGY level transitions; NANOPOROUS materials; NANOPORES; QUANTUM confinement effects; POROUS materials; GAS distribution
- Publication
Processes, 2023, Vol 11, Issue 3, p758
- ISSN
2227-9717
- Publication type
Article
- DOI
10.3390/pr11030758