期刊
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
卷 12, 期 4, 页码 -出版社
TAYLOR & FRANCIS LTD
DOI: 10.1088/1468-6996/12/4/044606
关键词
gold nanocluster; self-assembled monolayer (SAM); oxygen reduction reaction (ORR)
资金
- Global COE program [B01]
- World Premier International Research Center (WPI) Initiative on Materials Nanoarchitectonics from the Ministry of Education, Culture, Sports, Science and Technology (MEXT, Japan)
- [18205016]
- Grants-in-Aid for Scientific Research [23550001] Funding Source: KAKEN
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.
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