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Au/Pd core-shell nanoparticles with varied hollow Au cores for enhanced formic acid oxidation

Overview of attention for article published in Nanoscale Research Letters, January 2013
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Title
Au/Pd core-shell nanoparticles with varied hollow Au cores for enhanced formic acid oxidation
Published in
Nanoscale Research Letters, January 2013
DOI 10.1186/1556-276x-8-113
Pubmed ID
Authors

Chiajen Hsu, Chienwen Huang, Yaowu Hao, Fuqiang Liu

Abstract

A facile method has been developed to synthesize Au/Pd core-shell nanoparticles via galvanic replacement of Cu by Pd on hollow Au nanospheres. The unique nanoparticles were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, ultraviolet-visible spectroscopy, and electrochemical measurements. When the concentration of the Au solution was decreased, grain size of the polycrystalline hollow Au nanospheres was reduced, and the structures became highly porous. After the Pd shell formed on these Au nanospheres, the morphology and structure of the Au/Pd nanoparticles varied and hence significantly affected the catalytic properties. The Au/Pd nanoparticles synthesized with reduced Au concentrations showed higher formic acid oxidation activity (0.93 mA cm-2 at 0.3 V) than the commercial Pd black (0.85 mA cm-2 at 0.3 V), suggesting a promising candidate as fuel cell catalysts. In addition, the Au/Pd nanoparticles displayed lower CO-stripping potential, improved stability, and higher durability compared to the Pd black due to their unique core-shell structures tuned by Au core morphologies.

Mendeley readers

The data shown below were compiled from readership statistics for 20 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 20 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 8 40%
Student > Master 6 30%
Student > Doctoral Student 2 10%
Researcher 2 10%
Professor 1 5%
Other 1 5%
Readers by discipline Count As %
Chemistry 9 45%
Materials Science 7 35%
Physics and Astronomy 2 10%
Unknown 2 10%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 01 March 2013.
All research outputs
#2,902,968
of 3,628,597 outputs
Outputs from Nanoscale Research Letters
#89
of 380 outputs
Outputs of similar age
#65,429
of 85,512 outputs
Outputs of similar age from Nanoscale Research Letters
#2
of 2 outputs
Altmetric has tracked 3,628,597 research outputs across all sources so far. This one is in the 2nd percentile – i.e., 2% of other outputs scored the same or lower than it.
So far Altmetric has tracked 380 research outputs from this source. They receive a mean Attention Score of 0.9. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 85,512 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.
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