کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5149923 | 1497896 | 2016 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A critical review on gas diffusion micro and macroporous layers degradations for improved membrane fuel cell durability
ترجمه فارسی عنوان
بررسی بحرانی در مورد تخریب لایه های میکروسکوپی و پراکندگی گاز برای بهبود دوام سوخت سلولی سوخت غلظت
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کلمات کلیدی
لایه کوچک لایه انتشار گاز مدیریت آب بهینه، تنزل، طول عمر
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
Formerly considered as a secondary component of fuel cell, gas diffusion layers (GDLs) have been shown to have a key role in gas transport to the catalyst layers and in water management: in particular, the microporous layer (MPL) deposited on the diffusion substrate has an active part in water distribution in the membrane electrode assembly and in its efficient removal from the cell. In addition to its perfect design for the targeted application and in combination with the macroporous substrate (MPS), the MPL structure and physicochemical properties have to contribute to the cell durability, which is still considered as insufficient for larger, massive commercialisation of this energy conversion system. The paper is aimed at reviewing the main knowledge gained on the role of the MPL on GDL operation and durability, with investigation of degradation phenomena of both MPL and MPS, together with the role played by the MPL in mitigating the occurrence of degradation phenomena that can occur in the whole fuel cell. In addition to the reviewing purpose, original data on ex-situ degradation of GDL are presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 336, 30 December 2016, Pages 40-53
Journal: Journal of Power Sources - Volume 336, 30 December 2016, Pages 40-53
نویسندگان
Francois Lapicque, Mariem Belhadj, Caroline Bonnet, Joël Pauchet, Yohann Thomas,