کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9451863 1307846 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Catalytic and electrocatalytic hydrogenolysis of brominated diphenyl ethers
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Catalytic and electrocatalytic hydrogenolysis of brominated diphenyl ethers
چکیده انگلیسی
Polybrominated diphenyl ethers (PBDEs) are ubiquitous environmental contaminants due to their use as additive flame-retardants. Conventional catalytic hydrogenolysis in methanol solution and electrocatalytic hydrogenolysis in aqueous methanol were examined as methods for debrominating mono- and di-bromodiphenyl ethers, as well as a commercial penta-PBDE mixture, in each case using palladium on alumina as the catalyst. Electrocatalytic hydrogenolysis employed a divided flow-through batch cell, with reticulated vitreous carbon cathodes and IrO2/Ti dimensionally stable anodes. Both methods gave efficient sequential debromination, with essentially complete removal of bromine from the PBDEs, but the electrocatalytic method was limited by the poor solubility of PBDEs in aqueous methanol.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 58, Issue 7, February 2005, Pages 961-967
نویسندگان
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