We show that when a small amount of heat is added close to a liquid-vapor interface of a captive gas bubble in a microchannel, interphase mass-transfer through the bubble can occur in a controlled manner with only a slight change in the temperature of the fluid. We demonstrate that this method, which we refer to as bubble-assisted interphase mass-transfer (BAIM), can be applied to interphase chemical separations, e.g., simple distillation, without the need for high temperatures, vacuum, or active cooling. Although any source of localized heating could be used, we illustrate BAIM with an all-optical technique that makes use of the plasmon resonance in an array of nanoscale metal structures that are incorporated into the channel to produce localized heating of the fluid when illuminated by a stationary low-power laser.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/ac702174t | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Tailoring the Electrode Interface Microenvironment to Stabilize Zn Metal Anode.
Small
January 2025
School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China.
Zn metal is the most attractive anode material for aqueous batteries, yet it encounters challenges from dendrites. Here, based on lanthanum trifluoromethanesulfonate (La(OTf))-based electrolyte, the idea of tailoring the electrode interface microenvironment (ion concentration, solid electrolyte interphase (SEI) and electric field) is proposed to stabilize the Zn metal anode. The theoretical and experimental results show that the reconstruction of the electrolyte microstructure by OTf and the capture of SO by La enhance the liquid-phase mass transfer, which alleviates the ion concentration gradient on the anode surface.
View Article and Find Full Text PDFA modeling method based on incomplete mixed cells in counter-current chromatography: Interphase mass transfer ratio.
J Chromatogr A
December 2024
Department of Emergency Medicine and Laboratory of Emergency Medicine, West China Hospital, West China School of Medicine, Sichuan University, Chengdu, 610041, PR China. Electronic address:
Complex mass transfer processes are highly involved in the performance of counter-current chromatography (CCC), so profound exploration should be conducted to improve the overall performance. To more accurately estimate the interphase mass transfer efficiency in the elution process, this study proposes an incomplete mixed cell model by linking layering-mixing-layering behavior and wave-like mixing. With the model, we proposed a fast estimation algorithm for interphase mass transfer ratio (IMTR), which can independently reflect the magnitude of the interphase mass transfer efficiency.
View Article and Find Full Text PDFBifunctional Fluorocarbon Electrode Additive Lowers the Salt Dependence of Aqueous Electrolytes.
Adv Mater
December 2024
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science, Beijing, 100190, China.
The solid electrolyte interphase (SEI) plays a crucial role in extending the life of aqueous batteries. The traditional anion-derived SEI formation in aqueous electrolytes highly depends on high-concentrated organic fluorinating salts, resulting in low forming efficiency and long-term consumption. In response, this study proposes a bifunctional fluorocarbon electrode additive (BFEA) that enables electrochemical pre-reduction instead of TFSI anion to form the LiF-rich SEI and in situ produce conductive graphite inside the anode before the lithiation.
View Article and Find Full Text PDFLocalized High-Concentration Electrolyte in Li-Mediated Nitrogen Reduction for Ammonia Synthesis.
Adv Mater
December 2024
Surface Chemistry Laboratory of Electronic Materials (SCHEMA), Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea.
The lithium-mediated nitrogen reduction reaction (Li-NRR) is a promising green alternative to the Haber-Bosch process for ammonia synthesis. The solid electrolyte interphase (SEI) is crucial for high efficiency and stability, as it regulates reactant diffusion and suppresses side reactions. The SEI properties are greatly influenced by the Li ion solvation structure, which is controllable through electrolyte engineering.
View Article and Find Full Text PDFElucidation of the Decomplexation and Reverse Migration Mechanism of Uranyl Ions from the Oil Phase to the Aqueous Phase Using Microsecond (0.2 μs) Molecular Dynamics Simulations.
Langmuir
October 2024
Chemical Engineering Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
Interphase ion transfer is ubiquitous in chemistry, physics, biology, and various engineering sciences. Ion transfer from the aqueous phase to the oil phase or vice versa is a complex chemical phenomenon, and its fundamental understanding is crucial for efficient and economical mass transfer. This ion transfer is much more complex for radionuclide metal ions.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!