Communication—Acid-Treated Nickel-Rich Platinum–Nickel Alloys for Oxygen Reduction and Methanol Oxidation Reactions in Alkaline Media. Issue 7 (1st January 2017)

• Record Type: Journal Article
• Authors: Tamaki, Takanori; Yamada, Yusuke; Kuroki, Hidenori; Yamaguchi, Takeo
• Is Part Of: Journal of the Electrochemical Society. Volume 164:Issue 7(2017)
• Page Start: F858
• Page End: F860
• Publication Date: 2017-01-01
• Subjects: acid treatment -- alkaline fuel cell -- alloy -- methanol oxidation reaction -- nickel -- oxygen reduction reaction -- platinum; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.1611707jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : We investigate the performance of platinum (Pt)–nickel (Ni) alloy catalysts with very low amounts of Pt, namely PtNi3, PtNi7, and PtNi15 . Pre-treatment of the alloys was performed in bulk acid solution, and activities for the oxygen reduction reaction (ORR) and methanol oxidation reaction (MOR) were measured in alkaline solution. Structural analysis suggests the removal of Ni only near the surface of the alloys. Pre-treated PtNi3 and PtNi7 are shown to be promising catalysts for both ORR and MOR in alkaline media.