Physical similarity and parametric sensitivity analysis of the capacitive deionization process

Zhang, Jianfei; Yang, Meng; Zhu, Huangyi; Ren, Qinlong; Qu, Zhiguo

doi:10.1080/15435075.2022.2043331

Cited by 2 publications

(2 citation statements)

References 33 publications

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“…porous media, such as ionic thermoelectric energy conversion, [37] ion sieving, and desalination. [118] This approach offers a superior idea for understanding these complex phenomena and has significant potential for developing practical applications in various fields.…”

Section: Rt𝜀 ) and Nanoporous Membrane Configuration (mentioning

confidence: 99%

Nanochannel‐Based Ion Transport and Its Application in Osmotic Energy Conversion: A Critical Review

Wang

Zhang

Zhu

et al. 2023

Advanced Physics Research

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Nanochannel‐based ion transport is an important field of study in various disciplines, including physics, chemistry, energy, materials science, biology, and earth science. The unique features of natural nanochannels have inspired numerous innovative designs that seek to achieve high ion permeability, selectivity, and rectification. A notable example is osmotic energy conversion, which harvests sustainable salinity‐gradient energy to generate electricity without moving parts, noise, or carbon emissions and thus serves as a promising alternative to traditional fossil fuel utilization. This review focuses on the fundamental principles, regulatory methods, and practical applications of nanochannel‐based ion transport for osmotic energy conversion. The physical mechanisms of ion transport and the intriguing phenomena of ion behaviors in nanoconfined spaces are discussed first, followed by a thorough examination of the overall process of osmotic power generation from mathematical, numerical, parametric, first‐principles, molecular simulation, and modeling perspectives. Strategies for enhancing the osmotic performance are then discussed to overcome the trade‐off between ion selectivity and ion flux, including the theoretical design of nanochannel geometry and electrification, experimental optimization of nanoporous membranes, and electrolyte thermal enhancement. The existing challenges and opportunities for the future development of nanochannel‐based ion transport and osmotic power generation are addressed at the end.

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Section: Rt𝜀 ) and Nanoporous Membrane Configuration (mentioning

confidence: 99%

Nanochannel‐Based Ion Transport and Its Application in Osmotic Energy Conversion: A Critical Review

Wang

Zhang

Zhu

et al. 2023

Advanced Physics Research

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“…Similarity theory is an effective tool to obtain generalized and compact results. With its successes in the fields of thermo-fluid science and engineering, electromagnetics, mechanics, ion transport, etc., similarity theory is a promising approach to resolve this issue without reduction of the reliability and accuracy of the mathematical model for the PEMFC . At the present stage, the applications of similarity theory in PEMFC researches have been extensively investigated for the processes in several components of PEMFC, including the flow channel and gas diffusion layer transport process analysis, membrane electrode assembly (MEA) characteristic and performance analysis, PEMFC contamination measurement research, electrochemical kinetics analysis, etc .…”

Section: Introductionmentioning

confidence: 99%

Projection Diagram for Determining Polarization Curves under Variation of Activation Criterion Using Similarity Theory

Bai

Tao

2022

ACS Omega

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Revealing the correlation between polarization curve and input parameters is a highly concerned topic in proton exchange membrane fuel cell (PEMFC) research. Till now, three-dimensional (3D) numerical models have been the most comprehensive methods to predict the polarization curve under variational conditions. However, due to the diversity and complexity of the parameters involved, an immense numerical or experimental burden is required to obtain the above-referred correlation based on 3D numerical model. Application of the similarity theory is considered as a promising breakthrough in PEMFC research to obtain generalized and compact laws. Activation criterion, a relative magnitude of the effect of temperature on electrochemical reaction rate versus the effect of activation overpotential, is the most important criterion on the PEMFC performance. Revealing its impact on the dimensionless polarization curve in the aspects of slope, intercept, and curvature is one of the major challenges for further investigation. Herein, a projection diagram is proposed to determine polarization curves under variation of activation criterion using similarity theory based on a series of results with other criteria variation. As a validation of the concept, two scenarios are exhibited by numerical approach. Results suggest that the maximum relative deviation of polarization curves predicted by the projection diagram is 0.14%, which reaches a high accuracy. The projection diagram reveals the reason why the activation criterion has a comprehensive and complex impact on the dimensionless polarization curve.

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Physical similarity and parametric sensitivity analysis of the capacitive deionization process

Cited by 2 publications

References 33 publications

Nanochannel‐Based Ion Transport and Its Application in Osmotic Energy Conversion: A Critical Review

Nanochannel‐Based Ion Transport and Its Application in Osmotic Energy Conversion: A Critical Review

Projection Diagram for Determining Polarization Curves under Variation of Activation Criterion Using Similarity Theory

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