Results 51 to 60 of about 2,966,022 (299)

Using small molecules to facilitate exchange of bicarbonate and chloride anions across liposomal membranes [PDF]

, 2009
Bicarbonate is involved in a wide range of biological processes, which include respiration, regulation of intracellular pH and fertilization. In this study we use a combination of NMR spectroscopy and ion-selective electrode techniques to show that the ...
Oluyomi A. Okunola, Jeffery T. Davis, Quesada, Roberto, Gale, Philip A., Tomás Torroba, Okunola, Oluyomi A., Iglesias-Sánchez, Jose Carlos, Philip A. Gale, Prados, Pilar, Pilar Prados, Torroba, Tomás, Jose Carlos Iglesias-Sánchez, Davis, Jeffery T., Roberto Quesada   +13 more
core   +1 more source

CO2‐to‐CO Conversion in a Gas‐Fed, Zero‐Gap, PEM Electrolyzer Enabled by Polycations and Nitrogen‐Doped Carbon‐Supported Cobalt Nanoparticles

Advanced Functional Materials, EarlyView.
A gas‐fed, zero‐gap, PEM CO2 electrolyzer is realized by incorporating PDDA+ ions onto the carbonaceous Co/N‐C electrocatalyst, with gaseous H2 and CO2 fed into the anode and cathode, respectively. Operating without an aqueous electrolyte, the system sustains a peak FECO of 65.1% at 100 mA cm−2. ABSTRACT Electrochemical carbon dioxide reduction (ECO2R)
Yuen Leong Chow, Hsi‐Wen Wu, Aimin Li, Yalou Guo, Duhong Chen, Jie Zhang, Paul A. Webley   +6 more
wiley   +1 more source

Alcohol Diffusion in Alkali-Metal-Doped Polymeric Membranes for Using in Alkaline Direct Alcohol Fuel Cells

Membranes, 2022
The alcohol permeability of anion exchange membranes is a crucial property when they are used as a solid electrolyte in alkaline direct alcohol fuel cells and electrolyzers.
Andrea Fernández-Nieto, Sagrario Muñoz, Vicenta María Barragán   +2 more
doaj   +1 more source

Bioinspired Spatially Topological Strategy Boosts the Anion Exchange Membrane for Industrial-scale Water Electrolysis [PDF]

The transport of ions through the anion exchange membrane (AEM) depends on the overall energy barriers imposed by the collective interplay of ion channel architecture.
Zhiheng, Li, Dexin, Chen, Linqin, Wang, Zhiwei, Wang, Wentao, Zheng, Lanlan, He, Tang, Tang, Qinglu, Liu, Husileng, Lee, Guoheng, Ding, Ziyu, Tian, Licheng, Sun   +11 more
core   +2 more sources

Oxidative instability of ionomers in hydroxide-exchange-membrane electrolyzers [PDF]

, 2023
Hydroxide exchange membrane (HEM) electrolyzers can produce green H2 with only earth-abundant catalysts and electrolyte-free (nominally pure) water feed, significantly decreasing system cost and complexity.
Kevin, Noonan, Shannon, Boettcher, Jamie, Gaitor, Valerie, Brogden, Willow, Thompson, Grace, Lindquist   +5 more
core   +2 more sources

Decoupling the Size and Loading Effects in Silver Nanoparticles for Efficient Paired Carbon Dioxide and Formaldehyde Electrolysis

Advanced Functional Materials, EarlyView.
We investigate size‐dependent CO selectivity on Ag nanoparticles, where optimized Ag loading achieves nearly 100% Faradaic Efficiency for CO at −100 mA·cm−2. In situ SERS and XPS reveal the crucial role of optimized loading in catalytic performance. The Ag/C catalyst further exhibits bifunctional activity, enabling efficient electrolysis of CO2 and ...
Venkata S. R. K. Tandava, Clara Große, Debabrata Bagchi, Zhenye Zhu, Suptish Ghosh, J. Niklas Hausmann, Carsten Walter, Rosario Suarez Anzorena, Catalina Elena Jimenez, Yasmin Lucero Cobos‐Becerra, Jack C. Q. Fletcher, Tobias Sontheimer, Michael Schwarze, Holger Dau, Matthias Driess, Marcus Bär, Prashanth W. Menezes   +16 more
wiley   +1 more source

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

Advanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

Study on Synthesis and Characterization of Anion Exchange Membrane Based on Poly (Vinyl Alcohol) modified by free-radical polymerization

International Journal of Electrochemical Science, 2020
In this study, poly(vinyl alcohol) (PVA) has been modified by free-radical polymerization (PVA-PVA). The formation of products were confirmed by nuclear magnetic resonance spectra (13C NMR).
Nguyen Van Thuc, Nguyen Thi Cam Ha, Nguyen Huu Tho   +2 more
doaj   +1 more source

Investigation of membranes-electrodes assemblies in anion exchange membrane fuel cells (AEMFCs): Influence of ionomer ratio in catalyst layers

Heliyon
Anion exchange membrane fuel cells (AEMFCs) have recently attracted significant attention as low-cost alternative fuel cells to traditional proton exchange membrane fuel cells because of the possible use of platinum-group metal-free electrocatalysts ...
Zarina Turtayeva, Feina Xu, Jérôme Dillet, Kévin Mozet, Régis Peignier, Alain Celzard, Gaël Maranzana   +6 more
doaj   +1 more source

Aquivion-based anion exchange membranes: Synthesis optimization via dispersant agents and reaction time

, 2023
Alkaline membrane water electrolysis fed by renewable energy is a promising technology to produce "green" hydrogen for a variety of applications. Thanks to their unique characteristics of chemical, thermal and electrochemical stability, perfluorinated ...
Carbone A., Arico A. S., Cattaneo A., Oldani C., Gatto I., Campagna Zignani S., Pedicini R.   +6 more
core   +1 more source