کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
62542 | 47644 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Catalytic reduction of oxygen and hydrogen peroxide by nanoporous gold
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Catalytic reduction of oxygen and hydrogen peroxide by nanoporous gold Catalytic reduction of oxygen and hydrogen peroxide by nanoporous gold](/preview/png/62542.png)
چکیده انگلیسی
Nanoporous gold (NPG) made by dealloying silver/gold alloys is a mesoporous metal combining high surface area and high conductivity. Recently, NPG has been shown to exhibit some of the high catalytic activity previously associated only with supported gold nanoparticles. Here we describe how NPG acts as a catalyst for the oxygen reduction reaction in both gas phase (in fuel cells) and aqueous environments (using rotating disk electrochemistry). NPG was found to reduce oxygen via an effectively 4-four electron route comprised of a first reduction of oxygen to hydrogen peroxide, and then an unusually active further catalytic reduction of hydrogen peroxide to water.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Catalysis - Volume 253, Issue 1, 1 January 2008, Pages 132–138
Journal: Journal of Catalysis - Volume 253, Issue 1, 1 January 2008, Pages 132–138
نویسندگان
Roswitha Zeis, Tang Lei, Karl Sieradzki, Joshua Snyder, Jonah Erlebacher,