Published January 1, 2016 | Version v1
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Electrocatalytic reduction of nitrate ions at a poly crystalline SnCu modified platinum surface by using an H+ conducting solid polymer in a sandwich type membrane reactor

  • 1. Univ Sains Malaysia, Sch Chem Sci, Minden 11800, Penang, Malaysia
  • 2. Shahjalal Univ Sci & Technol, Sch Phys Sci, Dept Chem, Sylhet 311, Bangladesh

Description

The electrocatalytic reduction of nitrate ions (NO3-) was performed in a neutral medium by using a sandwich type membrane reactor, M vertical bar Nafion vertical bar Pt-X (where, X = Cu, SnCu). The voltammetric and electrolysis results showed that the performances of catalytic surface were in the order of Pt < Cu-Pt < SnCu-Pt. A Cu-Pt catalyst generated ammonia, conversely, a SnCu-Pt catalyst yielded molecular nitrogen while nitrate ions were reduced. Adsorbed hydrogen atoms in the form of Pt-H species could regenerate the performance of SnCu-Pt catalyst. (C) 2016 Published by Elsevier Ltd.

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