[3Ca01-12] 表面科学(反応)

[3Ca12S] Nitrous oxide reduction at tin-modified platinum-palladium single crystalline electrodes

*鄭 錦航¹、加藤 優^1,2、八木 一三^1,2 (1. 北海道大学大学院環境科学院、2. 北海道大学大学院地球環境科学研究院)

The electrocatalytic N2ORR activity of noble metals such as Pt is widely studied, and polycrystalline Pd gives the smallest overpotential for the N2ORR. Tin modification is considered as a promoter that can improve the catalytic activity at Pt or Pd surfaces for electrochemical nitrate reduction. However, there is a lack of studies on the effect of tin-coverage of noble metal electrodes on the electrochemical N2ORR. Herein, in this work, Pd-Pt alloy (111) and (100) single crystalline electrodes are modified with different surface coverages of Sn and then used for the N2ORR to discuss the impact of Sn-coverage on the N2ORR activity.