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This work presents a Joule-heating strategy to create thin proton exchange membranes (PEMs) with high proton conductivity and low H crossover. The treated PEMs assembled electrolyzer achieves a record current density of 3.72 A cm at 1.9 V with 1250 h durability at 2 A cm for water electrolysis.
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http://dx.doi.org/10.1039/d5cc04399a | DOI Listing |
J Funct Biomater
July 2025
CNR NANOTEC-Institute of Nanotechnology, c/o Campus Ecotekne, 73100 Lecce, Italy.
Cell migration assays provide valuable insights into pathological conditions, such as tumor metastasis and immune cell infiltration, and the regenerative capacity of tissues. In vitro tools commonly used for cell migration studies exploit commercial transwell systems, whose functionalities can be improved through engineering of the pore pattern. In this context, we propose the fabrication of a transwell-like device pursued by combining the proton beam writing (PBW) technique with wet etching onto thin layers of polydimethylsiloxane (PDMS).
View Article and Find Full Text PDFChem Commun (Camb)
August 2025
Key Laboratory of Low-grade Energy Utilization Technologies and Systems, National Innovation Center for Industry-Education Integration of Energy Storage Technology, School of Energy and Power Engineering, Chongqing University, Ministry of Education, Chongqing, 400044, China.
This work presents a Joule-heating strategy to create thin proton exchange membranes (PEMs) with high proton conductivity and low H crossover. The treated PEMs assembled electrolyzer achieves a record current density of 3.72 A cm at 1.
View Article and Find Full Text PDFACS Appl Mater Interfaces
August 2025
International Research Center for Renewable Energy & State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
Pt coating has been considered a promising strategy to protect the Ti porous transport layer substrate in a proton exchange membrane electrolyzer from corrosion. However, despite significant advancements in understanding the composition, process, and structure of Pt coatings, the underlying causes of coating failure remains unclear. Here, we systematically investigate the failure processes of magnetron-sputtered Pt coatings on Ti substrates through ex situ electrochemical tests that simulate anode operational conditions.
View Article and Find Full Text PDFPhys Med Biol
August 2025
Life Sciences Division, TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3, CANADA.
. ConventionalTh target thicknesses used forAc production are substantially smaller than the proton ranges, underutilizing theAc production potential of proton beams. This study explores theoretical optimal thicknesses ofTh targets at widely used proton energies, 70-200 MeV.
View Article and Find Full Text PDFNat Commun
August 2025
Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
The regulation of product selectivity in electrochemical CO reduction (ECOR) remains fundamentally constrained by the dynamic equilibrium between intermediate transport and surface coverage. In this study, we report a progress in catalytic architecture through precision-engineered Au@CuO yolk-shell tandem nanoreactors featuring dual-tunable parameters: cavity confinement dimensions and shell thickness gradients. This structural modulation enables dynamic control over both *CO intermediate enrichment and reaction pathway bifurcation.
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