Construction of multilayers of bare and Pd modified gold nanoclusters and their electrocatalytic properties for oxygen reduction

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概要

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• Multilayers of gold nanoclusters (GNCs) coated with a thin Pd layer were constructed using GNCs modified with self-assembled monolayers (SAMs) of mercaptoundecanoic acid and a polyallylamine hydrochloride (PAH) multilayer assembly, which has been reported to act as a three-dimensional electrode. SAMs were removed from GNCs by electrochemical anodic decomposition and then a small amount of Pd was electrochemically deposited on the GNCs. The kinetics of the oxygen reduction reaction (ORR) on the Pd modified GNC/PAH multilayer assembly was studied using a rotating disk electrode, and a significant increase in the ORR rate was observed after Pd deposition. Electrocatalytic activities in alkaline and acidic solutions were compared both for the GNC multilayer electrode and Pd modified GNC electrode.

著者

• Uosaki K

  Hokkaido Univ. Sapporo

• Uosaki Kohei

  Physical Chemistry Laboratory Division Of Chemistry Graduate School Of Science Hokkaido University

• Uosaki Kohei

  Phyical Chemistry Laboratory Division Of Chemistry Graduate School Of Science Hokkaido University

• Umakoshi Keisuke

  Department Of Applied Chemistry Faculty Of Engineering Nagasaki University

• Uosaki Kohei

  Physical Chemistry Laboratory Department Of Chemistry Faculty Of Science Hokkaido University

• Noguchi Hidenori

  Physical Chemistry Laboratory Division Of Chemistry Graduate School Of Science Hokkaido University

• Noguchi Hidenori

  Physical Chemistry Laboratory Department Of Chemistry Faculty Of Science Hokkaido University

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