Results 181 to 190 of about 38,234 (262)

Triazine-ring protonation enables synergistic enhancement of proton conduction and membrane stability. [PDF]

Chem Sci
Dong Y, Xie H, Han Y, Li Q, Han J, He W.
europepmc   +1 more source

Toward Complete CO2 Electroconversion: Status, Challenges, and Perspectives

Advanced Energy Materials, EarlyView.
Electrocatalytic CO2 reduction and CO2 batteries face challenges in achieving complete CO2 conversion with high conversion rates and Faradaic efficiency simultaneously. Existing systems compromise one for the other with incomplete CO2 conversion and inefficiencies, hindering practical applications. This perspective highlights state‐of‐the‐art progress,
Changfan Xu, Ping Hong, Yulian Dong, Marc Robert, Guosheng Shao, Yong Lei   +5 more
wiley   +1 more source

Rheology of Aqueous Solutions in the Presence of Proton Exchange Membrane: Surface Tension. [PDF]

Polymers (Basel)
Timchenko SL, Infimovskii YY, Zadorozhnyi EN, Zadorozhnyi NA.   +3 more
europepmc   +1 more source

Leveraging Digital Advanced Manufacturing to Enable Polymer Electrolyte Fuel Cells With Ultrahigh Gravimetric Power Density

Advanced Energy Materials, EarlyView.
This study employs digital advanced manufacturing to develop lightweight, compact porous distributors as alternatives to conventional bipolar plates in PEM fuel cells. A graphene‐coated nickel foam achieves a power density of 1.52 W cm−2, while titanium‐based designs deliver lightweight solutions: an LPBF‐fabricated Gyroid lattice reaches 1.36 W cm−2 ...
Hadi Heidary, Vahid Nasrollahi, Daniel Wilmot, Jacob Bracegirdle‐Morais, Sophie C. Cox, Stefan Dimov, Moataz M. Attallah, Ahmad El‐kharouf, Sara Walker, Robert Steinberger‐Wilckens   +9 more
wiley   +1 more source

Evolutionary Strategies in Nanocomposite Proton Exchange Membranes: A Physical Chemistry Applied Materials (PCAM) LAB Review on Material Design, High-Temperature Performance, and Durability. [PDF]

Polymers (Basel)
Nicotera I, Coppola L, Simari C.
europepmc   +1 more source

Decoding Short‐Range Order in Amorphous Two‐Dimensional Nanosheets for Efficient and Durable Ampere‐Level Seawater Electrolysis: A Case Study of Amorphous Ni(OH)2

Advanced Energy Materials, EarlyView.
This work uncovers the atomic‐scale origins of exceptional HER performance in amorphous Ni(OH)2 nanosheets by combining atom probe tomography, DFT simulations, and operando spectroscopy. We identify distinct short‐range‐order motifs that accelerate water dissociation, proton transport, and hydrogen adsorption. Embedding Pt single atoms further enhances
Xin Geng, Xiaolong Lu, Zhi Mei, Zhenyu Wang, Baptiste Gault   +4 more
wiley   +1 more source

Beyond Nafion with Fluorine-Free sPSU-sNIM Membranes: Nanostructured Proton Pathways for Harsh Fuel Cell Environments. [PDF]

ACS Appl Mater Interfaces
Simari C, Lufrano E, Coppola L, Nicotera I.   +3 more
europepmc   +1 more source

Atomic Scale Ordering of Liquid Water at a Dynamic Pt(111) Interface Under Electrochemical Conditions Imaged by Electron Holography

Advanced Energy Materials, EarlyView.
High resolution electron holography was used to image the projected electric potential of ordered water layers at the interface to a platinum (111) electrode. The observed reorganization of the water layers upon applying external potentials suggests that the electric potential drop of the electric double layer is mainly carried by the polarization ...
Jonas Lindner, Ulrich Ross, Tobias Meyer, Sung Sakong, Axel Gross, Michael Seibt, Christian Jooss   +6 more
wiley   +1 more source

A Camphorsulfonic Acid-Grafted Polybenzimidazole Ion Selectivity Membrane for Vanadium Redox Flow Battery. [PDF]

Membranes (Basel)
Guo Y, Pang B, Cui F, Fang T, Tian L, Yang L, Chen Z, Wu X.   +7 more
europepmc   +1 more source

Thin Reinforced Sulfonated Poly(phenylene sulfone) Membranes for Durable Water Electrolysis: Suppressed Swelling and Enhanced Stability Over 2000 Hours

Advanced Energy Materials, EarlyView.
Hydrocarbon membranes have the potential to significantly enhance the efficiency of water electrolyzers. However, their application is often limited by insufficient stability resulting from excessive swelling. This work presents a strategy to achieve efficient, safe and stable operation of a 24 µm thin hydrocarbon membrane by combining a modified ...
Clara Schare, Giorgi Titvinidze, Christian Piesold, Edgar Cruz Ortiz, Nodar Dumbadze, Michael Schuster, Klaus‐Dieter Kreuer, Carolin Klose, Andreas Münchinger   +8 more
wiley   +1 more source