Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 702, Issue -, Pages 146-152Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.01.199
Keywords
Peptide; Palladium nanoparticles; Fuel cell; Electrocatalyst; Oxygen electroreduction; Surface effects
Categories
Funding
- Project of Public Interest Research and Capacity Building of Guangdong Province [2015A010105009]
- Guangdong Innovative and Entrepreneurial Research Team Program [2014ZT05N200]
- Guangdong Natural Science Funds for Distinguished Young Scholars [2015A030306006]
- National Natural Science Foundation of China [21501059]
- National Science Foundation [CHE-1265635, DMR1409396]
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Peptide-capped nanoparticles represent a unique type of nanomaterials with emergent optical and electrochemical properties. Herein, a series of peptide capped palladium nanoparticles have been prepared and employed as highly efficient catalysts for oxygen electroreduction. The peptide sequence was tuned by substituting amino acid residues at specialized positions, and strong surface effects were observed between the peptide sequence and the electrocatalytic activity. The findings corresponded well with the previously reported C C coupling catalytic reactions, indicating that the residue-specific binding effects but not the overall binding strength governed the electrocatalytic activity. The results may shed light on the rational design of bio-inspired nanomaterials with optimized electrocatalytic properties. (C) 2017 Elsevier B.V. All rights reserved.
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