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- W3204890341 abstract "Highly compact and efficient proton exchange membrane electrolyzer cells (PEMECs) are strongly desired for commercializing hydrogen production. Here, a novel concept of all-in-one bipolar electrode (AIOBE) is proposed for high-efficiency and compact PEMECs with the help of 3D printing and sputtering coating. AIOBE ideally integrated catalyst layer (CL)/gas diffusion layer/bipolar plate/current distributor/gasket, which significantly reduced component quantity on the cathode side of PEMECs from 5 to 1, cut down on part weight and volume, and drastically accelerated the fabrication and maintenance processes. Moreover, AIOBE with the micro-scale flat surface and nano-scale rough CL provided an ultralow ohmic resistance (~ 100 mOhm cm2) and a high catalyst utilization. Finally, AIOBE delivered a practical voltage of 1.62 V and a high energy efficiency of 91% at 1000 mA/cm2, and its mass activity (4.48 A/mgPt) was 14 times higher than conventional PEMECs. This work provides a new route for developing highly compact electrochemical devices, such as fuel cells, electrolyzers for N2 reduction and CO2 conversion, and many more." @default.
- W3204890341 created "2021-10-11" @default.
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- W3204890341 date "2021-12-01" @default.
- W3204890341 modified "2023-10-13" @default.
- W3204890341 title "All-in-one bipolar electrode: A new concept for compact and efficient water electrolyzers" @default.
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- W3204890341 doi "https://doi.org/10.1016/j.nanoen.2021.106551" @default.
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