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Demonstrates improved ORR activity and durability in Pt/C, suggesting effective surface modification techniques.
High Resolution Image Download MS PowerPoint Slide We examined the effects of surface modification with several N-containing compounds on the durability and oxygen reduction reaction activity of Pt/C. Compounds with pyridinic N atoms clearly enhanced the durability of Pt/C. Among these pyridinic N compounds, 1,8-naphthyridine with two aligned pyridinic N atoms exhibited a drastic enhancing effect on the durability of Pt/C; in the presence of this compound, Pt/C maintained a high electrochemically active surface area under harsh durability test conditions (80 °C, 0.6–1.1 V, 10,000 cycles). Several compounds with pyridinic N atoms also enhanced the ORR activity of Pt/C. 1,8-Naphthyridine exhibits the strongest enhancement of the ORR activity and durability of Pt/C among these compounds.
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Yamazaki et al. (2026) studied this question.
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