کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4989224 | 1455975 | 2017 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
V-Cr-Cu dual-phase alloy membranes for hydrogen separation: An excellent combination of ductility, hydrogen permeability and embrittlement resistance
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: V-Cr-Cu dual-phase alloy membranes for hydrogen separation: An excellent combination of ductility, hydrogen permeability and embrittlement resistance V-Cr-Cu dual-phase alloy membranes for hydrogen separation: An excellent combination of ductility, hydrogen permeability and embrittlement resistance](/preview/png/4989224.png)
چکیده انگلیسی
V-Cr-Cu alloys consisting of bcc-(V) and fcc-(Cu) are developed as a new type of hydrogen permeable metal membranes based on the idea of distributing functions on the different phases. The bcc-(V) is mainly responsible for hydrogen permeation, and the fcc-(Cu) imparts improvement in ductility. The addition of Cr in as-cast (V100âxCrx)70Cu30 (x=0â¦10 at%) alloys reduces the hydrogen solubility and thus improves the hydrogen embrittlement resistance, but decreases the hydrogen diffusivity and permeability. As-cast (V95Cr5)70Cu30 exhibits an excellent combination of ductility, hydrogen permeability and embrittlement resistance. After cold rolled to a thin foil of ~100 µm in thickness and subsequent annealing, this alloy membrane shows a pronounced high hydrogen permeation flux, particularly ~34 cc H2 cmâ2minâ1 at a hydrogen pressure difference of 0.7 MPa at 673 K. This corresponds to a permeability of ~3.98Ã10â8 mol H2 mâ1sâ1Paâ0.5. This work demonstrates that the dual-phase structure in V-Cr-Cu alloys ensures a feasible route for a large scale fabrication of thin membranes by cold rolling that features high hydrogen permeation proprieties.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 524, 15 February 2017, Pages 354-361
Journal: Journal of Membrane Science - Volume 524, 15 February 2017, Pages 354-361
نویسندگان
Xinzhong Li, Feifei Huang, Dongmei Liu, Xiao Liang, Ruirun Chen, Markus Rettenmayr, Yanqing Su, Jingjie Guo, Hengzhi Fu,