کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7934773 | 1512942 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication of fine spongy nanoporous Ag-Au alloys with improved catalysis properties
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Fabrication of fine spongy nanoporous Ag-Au alloys with improved catalysis properties Fabrication of fine spongy nanoporous Ag-Au alloys with improved catalysis properties](/preview/png/7934773.png)
چکیده انگلیسی
Fine NP-AgAu (nanoporous AgAu) alloys with spongy structure was fabricated by chemical dealloying from rapidly solidified amorphous precursors Ag38.75âxCu38.75Si22.5Aux (x=0, 0.5, 1 and 5). The results indicate that the addition of small content Au in precursor can refine both the ligaments and pores obviously. Among the present components of the precursors, NP-AgAu alloys dealloying from Ag37.75Cu38.75Si22.5Au1 had the finest spongy structure. The size of pores was 5-10Â nm and the grain size of ligaments was 10-20Â nm. It also had the highest surface area of 106.83Â m2gâ1 and the best catalytic activity towards electro-oxidation of formaldehyde with the peak current of 665Â mAÂ mgâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Natural Science: Materials International - Volume 27, Issue 6, December 2017, Pages 658-663
Journal: Progress in Natural Science: Materials International - Volume 27, Issue 6, December 2017, Pages 658-663
نویسندگان
Cuiting Li, Tao Zhang, Min Zhang, Yu Jin, Lei Zuo, Hongjie Xu, Ran Li,