“One dimensional” double layer. The effect of size asymmetry of cations and anions on charge-storage in ultranarrow nanopores—an Ising model theory
- 作者: Rochester C.1,2, Sartor A.1, Pruessner G.3, Kornyshev A.A.1
- 
							隶属关系: 
							- Department of Chemistry
- Department of Physics
- Department of Mathematics
 
- 期: 卷 53, 编号 10 (2017)
- 页面: 1165-1170
- 栏目: Section 2. Physicochemical Mechanics
- URL: https://journals.rcsi.science/1023-1935/article/view/189088
- DOI: https://doi.org/10.1134/S102319351710010X
- ID: 189088
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详细
We develop a statistical mechanical theory of charge storage in quasi-single-file ionophilic nanopores with pure room temperature ionic liquid cations and anions of different size. The theory is mapped to an extension of the Ising model exploited earlier for the case of cations and anions of the same size. We calculate the differential capacitance and the stored energy density per unit surface area of the pore. Both show asymmetry in the dependence on electrode potential with respect to the potential of zero charge, related to the difference in the size of the ions, which will be interesting to investigate experimentally. It also approves the increase of charge storage capacity via obstructed charging, which in these systems emerges for charging nanopores with smaller ions.
作者简介
C. Rochester
Department of Chemistry; Department of Physics
														Email: a.kornyshev@imperial.ac.uk
				                					                																			                												                	英国, 							London, SW7 2AZ; London, SW7 2AZ						
A. Sartor
Department of Chemistry
														Email: a.kornyshev@imperial.ac.uk
				                					                																			                												                	英国, 							London, SW7 2AZ						
G. Pruessner
Department of Mathematics
														Email: a.kornyshev@imperial.ac.uk
				                					                																			                												                	英国, 							London, SW7 2AZ						
A. Kornyshev
Department of Chemistry
							编辑信件的主要联系方式.
							Email: a.kornyshev@imperial.ac.uk
				                					                																			                												                	英国, 							London, SW7 2AZ						
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