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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Origin of the catalytic activity of face-centered-cubic ruthenium nanoparticles determined from an atomic-scale structure
|
|---|---|
| Published in |
Journal of the Chemical Society, Faraday Transactions, January 2016
|
| DOI | 10.1039/c6cp04088h |
| Pubmed ID | |
| Authors |
L S R Kumara, Osami Sakata, Shinji Kohara, Anli Yang, Chulho Song, Kohei Kusada, Hirokazu Kobayashi, Hiroshi Kitagawa |
| Abstract |
The 3-dimensional (3D) atomic-scale structure of newly discovered face-centered cubic (fcc) and conventional hexagonal close packed (hcp) type ruthenium (Ru) nanoparticles (NPs) of 2.2 to 5.4 nm diameter were studied using X-ray pair distribution function (PDF) analysis and reverse Monte Carlo (RMC) modeling. Atomic PDF based high-energy X-ray diffraction measurements show highly diffuse X-ray diffraction patterns for fcc- and hcp-type Ru NPs. We here report the atomic-scale structure of Ru NPs in terms of the total structure factor and Fourier-transformed PDF. It is found that the respective NPs have substantial structural disorder over short- to medium-range order atomic distances from the PDF analysis. The first-nearest-neighbor peak analyses show a significant size dependence for the fcc-type Ru NPs demonstrating the increase in the peak height due to an increase in the number density as a function of particle size. The bond angle and coordination number (CN) distribution for the RMC-simulated fcc- and hcp-type Ru NP models indicated inherited structural features from their bulk counterparts. The CN analysis of the whole NP and surface of each RMC model of Ru NPs show the low activation energy packing sites on the fcc-type Ru NP surface atoms. Finally, our newly defined order parameters for RMC simulated Ru NP models suggested that the enhancement of the CO oxidation activity of fcc-type NPs was due to a decrease in the close packing ordering that resulted from the increased NP size. These structural findings could be positively supported for synthesized low-cost and high performance nano-sized catalysts and have potential application in fuel-cell systems and organic synthesis. |
X Demographics
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 39 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 39 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 12 | 31% |
| Researcher | 8 | 21% |
| Student > Master | 4 | 10% |
| Professor | 2 | 5% |
| Student > Doctoral Student | 2 | 5% |
| Other | 4 | 10% |
| Unknown | 7 | 18% |
| Readers by discipline | Count | As % |
|---|---|---|
| Chemistry | 16 | 41% |
| Materials Science | 8 | 21% |
| Engineering | 2 | 5% |
| Physics and Astronomy | 2 | 5% |
| Medicine and Dentistry | 1 | 3% |
| Other | 1 | 3% |
| Unknown | 9 | 23% |
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 12 November 2016.
All research outputs
#23,513,156
of 26,178,577 outputs
Outputs from Journal of the Chemical Society, Faraday Transactions
#12,408
of 17,384 outputs
Outputs of similar age
#345,762
of 402,594 outputs
Outputs of similar age from Journal of the Chemical Society, Faraday Transactions
#697
of 990 outputs
Altmetric has tracked 26,178,577 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 17,384 research outputs from this source. They receive a mean Attention Score of 2.5. 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 402,594 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.
We're also able to compare this research output to 990 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.