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One-pot aqueous synthesis of ultrathin trimetallic PdPtCu nanosheets for the electrooxidation of alcohols

Journal Article · · Green Chemistry
DOI:https://doi.org/10.1039/c9gc00741e· OSTI ID:1598191
Due to their synergistic structural and compositional advantages, ultrathin multimetallic nanosheets are widely recognized as highly efficient electrocatalysts for alcohol electrooxidation. However, despite significant efforts, current synthetic strategies for the preparation of multimetallic nanosheets mainly focus on the reduction of metal precursors in organic solvents or in the presence of toxic CO. In this study, a one-pot aqueous synthesis method based on the self-assembly of the novel surfactant docosyltrimethylammonium chloride was employed to produce ultrathin free-standing trimetallic PdPtCu nanosheets under ambient and eco-friendly conditions. No toxic chemicals or organic solvents were employed in this synthesis. The obtained PdPtCu nanosheets were ultrathin with a dendrite-like nanostructure (with an average thickness of ~3.5 nm) and alloyed crystalline features. The proposed synthetic strategy is also universally applicable for tuning the elemental ratios and compositions of ultrathin multimetallic nanosheets. Due to the multiple advantages of unique ultrathin dendrite nanostructures and multimetallic elemental compositions, the PdPtCu nanosheets exhibited remarkably enhanced performance in the electrooxidation of alcohols (methanol, ethanol, glycerol and glucose). The proposed one-pot eco-friendly synthetic concept could be used to build more multimetallic nanostructures with synergetic enhancement effects for a range of electrocatalytic applications.
Research Organization:
Univ. of Connecticut, Storrs, CT (United States)
Sponsoring Organization:
National Natural Science Foundation of China (NNSFC); National Science Foundation of Jiangsu Province; USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division
Grant/Contract Number:
FG02-86ER13622
OSTI ID:
1598191
Alternate ID(s):
OSTI ID: 1504997
Journal Information:
Green Chemistry, Journal Name: Green Chemistry Journal Issue: 9 Vol. 21; ISSN 1463-9262
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

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