Results 11 to 20 of about 266,896 (257)

Ion Transport and Process of Water Dissociation in Electromembrane System with Bipolar Membrane: Modelling of Symmetrical Case [PDF]

Membranes, 2022
A model is proposed that describes the transfer of ions and the process of water dissociation in a system with a bipolar membrane and adjacent diffusion layers.
Stanislav Melnikov
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Partial‐Single‐Atom, Partial‐Nanoparticle Composites Enhance Water Dissociation for Hydrogen Evolution [PDF]

Advanced Science, 2021
The development of an efficient electrocatalyst toward the hydrogen evolution reaction (HER) is of significant importance in transforming renewable electricity to pure and clean hydrogen by water splitting.
Chun Hu, Erhong Song, Maoyu Wang, Wei Chen, Fuqiang Huang, Zhenxing Feng, Jianjun Liu, Jiacheng Wang   +7 more
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β-FeOOH-Loaded Polydopamine-Modified Halloysite Nanotubes as a Catalytic Interlayer for Enhanced Water Dissociation in Bipolar Membranes [PDF]

Membranes
Efficient interfacial water dissociation is essential for reducing the operating voltage of bipolar membranes (BPMs), whereas aggregation and nonuniform distribution of nanoscale catalysts can limit active-site utilization.
Haotian Wang, Rui Yang, Jie Wang, Kui Lou, Yunshuang Fan   +4 more
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Power-Dissipation Model for Water Dissociation in Bipolar Membranes: Model Extension to High Current Density and Experimental Validation [PDF]

Membranes
Water dissociation (WD) at the internal junction of bipolar membranes (BPMs) is the key process enabling acid/base generation under reverse bias, yet the physical origin of its strong enhancement remains debated. In our previous work, we proposed a power-
Mohamed Fadel Anass Ma-el-ainine, Rachid Boukhili, Oumarou Savadogo   +2 more
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The Acid–Base Flow Battery: Sustainable Energy Storage via Reversible Water Dissociation with Bipolar Membranes [PDF]

Membranes, 2020
The increasing share of renewables in electric grids nowadays causes a growing daily and seasonal mismatch between electricity generation and demand. In this regard, novel energy storage systems need to be developed, to allow large-scale storage of the ...
Ragne Pärnamäe, Luigi Gurreri, Jan Post, Willem Johannes van Egmond, Andrea Culcasi, Michel Saakes, Jiajun Cen, Emil Goosen, Alessandro Tamburini, David A. Vermaas, Michele Tedesco   +10 more
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A New Power Dissipation Model and Its Analytic Formulation for Electric-Field-Driven Water Dissociation in the Cationic/Anionic Bipolar Polymer Membrane Junctions [PDF]

Membranes
Bipolar Polymer Membranes (BPMs) enable the creation of large, stable pH gradients by driving water dissociation (WD) at the cation/anion junction under reverse bias, a process central to electrodialysis, CO2 capture, and emerging acid–alkaline water ...
Mohamed Fadel Anass Ma-el-ainine, Rachid Boukhili, Oumarou Savadogo   +2 more
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Mechanistic insight on water dissociation on pristine low-index TiO2 surfaces from machine learning molecular dynamics simulations [PDF]

Nature Communications, 2023
Water adsorption and dissociation processes on pristine low-index TiO2 interfaces are important but poorly understood outside the well-studied anatase (101) and rutile (110).
Zezhu Zeng, Felix Wodaczek, Keyang Liu, Frederick Stein, Jürg Hutter, Ji Chen, Bingqing Cheng   +6 more
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Design principles for water dissociation catalysts in high-performance bipolar membranes [PDF]

Nature Communications, 2022
It is important yet challenging to elucidate the mechanism of water dissociation in bipolar membrane electrolysers. Here the authors show how water dissociation is accelerated by electric-field-focusing and catalytic effects and uncover design principles
Lihaokun Chen, Qiucheng Xu, Sebastian Z. Oener, Kevin Fabrizio, Shannon W. Boettcher   +4 more
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Correlations Between Vibrational Red Shifts, Electronic Structure, and Water Dissociation on Alloy Clusters: An Exploratory Computational Study [PDF]

Molecules
Understanding the activation mechanism of water molecules is of fundamental importance for catalytic water dissociation via water splitting. In this study, we employed first-principles molecular dynamics simulations to investigate the catalytic ...
Yanbiao Wang, Xinglong Pan, Tingting Liu
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Bipolar membranes reveal surface-hydroxyl-structure-dependent water dissociation mechanism [PDF]

Nature Communications
The high energy penalty for driving fast water dissociation hinders the implementation of emerging catalysis and energy conversion technologies with high sustainability, including electrolysis and fuel cells.
Huijun Lv, Chao Yang, Minghao Sun, Yu Yang, Fengwang Li, Pengfei Ou, Yuhang Wang   +6 more
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