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Effects of Zinc and Tungsten Additions in Mn–Mo–O Eectrocatalyst for Hydrogen Production from Seawater Electrolysis

Author Affiliations

  • 1Central Department of Chemistry, Tribhuvan University, Kathmandu, NEPAL

Res.J.chem.sci., Volume 1, Issue (2), Pages 13-119, May,18 (2011)

Abstract

An attempt was made to enhance the oxygen evolution efficiency in seawater electrolysis by the additions of zinc and tungsten to the MnMoO electrocatalyst anodically deposited on the intermediate Ir1–x–ySnSb2+0.5y/Ti electrode to produce hydrogen gas necessary for CO2 recycling project. The Ir1–x–SnSb2+0.5y/Ti supported nanocrystalline Ý–MnO type Mn–Mo–X(X=Zn,W)–O electrocatalysts with grain size of about 4–10 nm were tailored by anodic deposition and these anodes showed the almost 100 % oxygen evolution efficiency at 1000 A.m-2 in 0.5 M NaCl solution of pH 1 at 25C. They guaranteed the stable anode performance of 99.75–99.85 % oxygen evolution efficiencies for more than 5 months.

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