کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5149572 | 1497885 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Factors in electrode fabrication for performance enhancement of anion exchange membrane water electrolysis
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
To improve the cell performance for alkaline anion exchange membrane water electrolysis (AEMWE), the effects of the amount of polytetrafluoroethylene (PTFE) non-ionomeric binder in the anode and the hot-pressing conditions during the fabrication of the membrane electrode assemblies (MEAs) on cell performances are studied. The electrochemical impedance data indicates that hot-pressing at 50 °C for 1 min during MEA construction can reduce the polarization resistance of AEMWE by â¼12%, and increase the initial water electrolysis current density at 1.8 V (from 195 to 243 mA cmâ2). The electrochemical polarization and impedance results also suggest that the AEMWE performance is significantly affected by the content of PTFE binder in the anode electrode, and the optimal content is found to be 9 wt% between 5 and 20 wt%. The AEMWE device fabricated with the optimized parameters exhibits good water splitting performance (299 mA cmâ2 at 1.8 V) without noticeable degradation in voltage cycling operations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 347, 15 April 2017, Pages 283-290
Journal: Journal of Power Sources - Volume 347, 15 April 2017, Pages 283-290
نویسندگان
Min Kyung Cho, Hee-Young Park, Seunghoe Choe, Sung Jong Yoo, Jin Young Kim, Hyoung-Juhn Kim, Dirk Henkensmeier, So Young Lee, Yung-Eun Sung, Hyun S. Park, Jong Hyun Jang,