کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
51588 46847 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Controlled Pd deposition on carbon fibers by electroless plating for the reduction of nitrite in water
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Controlled Pd deposition on carbon fibers by electroless plating for the reduction of nitrite in water
چکیده انگلیسی

Pd catalysts supported on activated carbon felts (ACFs) with different metallic loadings were prepared by electroless plating and evaluated for the reduction of nitrite in water in a batch reactor. Homogeneous Pd dispersions were obtained, the plating solution concentration and the seeding step being the key variables that determine particle size and morphology. The formation of Pd crystals of 96 ± 22 nm situated at the external surface of the carbon fibers was obtained for 0.14 wt.% of metal loading, while an incipient formation of a Pd thin layer was detected for 1.9 wt.%. The fresh and used catalysts were characterized by SEM, EDS, XRD and XPS.

Figure optionsDownload as PowerPoint slideHighlights
► Pd/Activated Carbon Felts (ACF) catalysts were prepared by electroless plating.
► A controlled deposition of palladium particles on carbon fibers was achieved.
► After reaction, the Pd surface concentration decreases, probably due to sinterization.
► High dispersion and quantity of particles with small size is associated with activity.
► The reaction rate showed a 0.6—order law.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 16, Issue 1, 30 November 2011, Pages 189–193
نویسندگان
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