Results 231 to 240 of about 7,018,705 (370)

Advanced Temperature Design for Dynamic Performance Enhancement of PEMFCs Under High Current Density (HCD)

open access: yesAdvanced Science, EarlyView.
This study presents an innovative temperature difference (TD) design with an in‐plane gradient to optimize cooling channels in proton exchange membrane fuel cells (PEMFCs) under high current density (HCD) loading. The positive temperature difference (PTD) design improves dynamic response by enhancing hydration upstream and mitigating flooding ...
Fengyang Cai   +3 more
wiley   +1 more source

Enhanced Broadband Acoustic Absorption in Commercial Foam via Multiwall Carbon Nanotube‐Induced Pore Reconstruction

open access: yesAdvanced Science, EarlyView.
A simple to multiscale structure transition happens when a commercial porous foam is filled with multiwall carbon nanotubes with high aspect ratio. For an acoustic absorber with a porous material, the loading of multiwall carbon nanotubes can significantly improve its specific surface area while preserving its thickness and high porosity, thus enables ...
Jinkui Xiong   +11 more
wiley   +1 more source

Recycling Defunct Lithium‐Ion Battery Cathodes to Quaternary Layered Double Hydroxides for Efficient Oxygen Evolution Reaction

open access: yesAdvanced Science, EarlyView.
Li(Co0.8Ni0.1Mn0.1)O2 and LiFePO4 cathode materials are functional recycled by simple leaching and co‐precipitation methods to synthesize Quaternary iron‐nickel‐cobalt‐manganese hydrotalcites as oxygen‐evolution‐reaction catalysts. The highly disordered structure and strong electronic interactions between metal cations result in excellent catalytic ...
Ronghou Yao   +11 more
wiley   +1 more source

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