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O: Fachverband Oberflächenphysik
O 61: Organic molecules on inorganic substrates: electronic, optical and other properties II
O 61.11: Vortrag
Mittwoch, 11. März 2026, 17:30–17:45, HSZ/0201
Low-temperature scanning tunneling microscopy and spectroscopy of 1,10-phenanthroline molecules on Au(111) surface — •Yuya Kaneko1, Takaya Shimokawa1, Hinata Aso1, Erlina Tik Man1, Kenji Hayashida2, Koutarou Takeyasu3, Junji Nakamura4, and Yasuo Yoshida1 — 1Dept. of Phys. Kanazawa Univ., Kanazawa, Ishikawa 920-1192, Japan. — 2Graduate School of Pure and Applied Sciences, Univ. of Tsukuba, Ibaraki 305-8577, Japan. — 3institute for Catalysis, Hokkaido Univ., Hokkaido 001-0021, Japan. — 4International Institute for Carbon-Neutral Energy Research, Kyushu Univ., Fukuoka 819-0395, Japan.
Fuel cells are considered a key technology for achieving a low-carbon society. However, current fuel cells rely on precious platinum for the oxygen reduction reaction (ORR). Nitrogen-doped carbon catalysts have attracted attention as promising alternatives due to their low cost and high durability, yet the detailed reaction mechanism remains unclear. Here, we report a scanning tunneling microscopy and spectroscopy (STM/S) study of in situ deposited 1,10-phenanthroline molecules, which serve as ideal model catalytic molecules for ORR activity [1]. [1]Takeyasu K., Furukawa M., Shimoyama Y., Singh S. K., Nakamura J., (2020) Role of Pyr-idinic Nitrogen in the Mechanism of the Oxygen Reduction Reaction on Carbon Electro-catalysts. Angew. Chem. Int. Ed.,60,5121-5124..
Keywords: Low temperature Scanning Tunneling Microscopy; Scanning Tunneling spectroscpy; Nitrogen-Doped Carbon Catalysts