کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9675801 | 1454107 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ionic surfactant-mediated synthesis of Pt nanoparticles/nanoporous carbons composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
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چکیده انگلیسی
High dispersion of platinum nanoparticles on porous carbons has been synthesized from the composites of Pt complex salts, surfactants and a resorcinol/formaldehyde (RF) resin. A novel strategy of this method is to utilize electrostatic interactions between Pt complex ions and surfactants as well as RF resins and surfactants. The carbons prepared with the surfactant have high BET surface area and large micropore volume because of gas generation from surfactant molecules interacted with an RF polymer chain. The product has well-dispersed small Pt particles with a diameter of 2Â nm. Surfactant molecules must interact not only with RF polymer but also with Pt complex ions to inhibit an aggregation of Pt particles. The Pt/carbon composite shows high catalytic activity for the oxidation of CO in H2 rich feed gas.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 262, Issues 1â3, 15 July 2005, Pages 52-56
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 262, Issues 1â3, 15 July 2005, Pages 52-56
نویسندگان
Tao Zheng, Norikazu Nishiyama, Yasuyuki Egashira, Korekazu Ueyama,