{rfName}
Hy

Indexed in

License and Use

Licencia

Citations

256

Altmetrics

Analysis of institutional authors

Garcia-Ortiz, AAuthorIborra, SAuthorCliment, MjAuthorCorma, ACorresponding Author

Share

October 30, 2024
Publications
>
Article
No

Hydrothermal Synthesis of Ruthenium Nanoparticles with a Metallic Core and a Ruthenium Carbide Shell for Low-Temperature Activation of CO2 to Methane

Publicated to: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY. 141 (49): 19304-19311 - 2019-12-11 141(49), DOI: 10.1021/jacs.9b07088

Authors:

Cored, Jorge; Garcia-Ortiz, Andrea; Iborra, Sara; Climent, Maria J; Liu, Lichen; Chuang, Cheng-Hao; Chan, Ting-Shan; Escudero, Carlos; Concepcion, Patricia; Corma, Avelino
[+]

Affiliations

ALBA Synchrotron Light Source, Carrer Llum 2-26 - Author
Natl Synchrotron Radiat Res Ctr - Author
Tamkang Univ, Res Ctr Xray Sci - Author
Univ Politecn Valencia, Inst Tecnol Quim, CSIC, Ave Naranjos S-N - Author
See more

Abstract

Ruthenium nanoparticles with a core-shell structure formed by a core of metallic ruthenium and a shell of ruthenium carbide have been synthesized by a mild and easy hydrothermal treatment. The dual structure and composition of the nanoparticles have been determined by synchrotron X-ray photoelectron spectroscopy (XPS), near-edge X-ray absorption fine structure (NEXAFS) analysis, and transmission electron microscopy (TEM) imaging. According to depth profile synchrotron XPS and X-ray diffraction (XRD) analysis, metallic ruthenium species predominate in the inner layers of the material, ruthenium carbide species being located on the upper surface layers. The ruthenium carbon catalysts presented herein are able to activate both CO2 and H-2, exhibiting exceptional high activity for CO2 hydrogenation at low temperatures (160-200 degrees C) with 100% selectivity to methane, surpassing by far the most active Ru catalysts reported up to now. On the basis of catalytic studies and isotopic (CO)-C-13/(CO2)-C-12/H-2 experiments, the active sites responsible for this unprecedented activity can be associated with surface ruthenium carbide (RuC) species, which enable CO2 activation and transformation to methane via a direct CO2 hydrogenation mechanism. Both the high activity and the absence of CO in the gas effluent confer relevance to these catalysts for the Sabatier reaction, a chemical process with renewed interest for storing surplus renewable energy in the form of methane.
[+]

Keywords

AluminaArticleCarbidesCarbonCarbon dioxideCatalysisCatalyst selectivityCatalystsChemical activationChemical structureCo2 hydrogenationCobaltConversionCore shell structureHigh resolution transmission electron microscopyHydrogenationHydrothermal synthesisHydrothermal treatmentsLow temperatureLow-temperature activationMetal nanoparticlesMethaneNanoparticleNear edge x-ray absorption fine structure analysisRenewable energiesRutheniumRuthenium carbideRuthenium compoundsRuthenium nanoparticlesSelective methanationSurfaceSynchrotron x-ray photoelectron spectroscopiesSynthesisTemperatureThermal analysisTransmission electron microscopyUnclassified drugX ray absorptionX ray absorption near edge structure spectroscopyX ray diffractionX ray diffraction analysisX ray photoelectron spectroscopyX ray photoemission spectroscopy

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal JOURNAL OF THE AMERICAN CHEMICAL SOCIETY due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2019, it was in position 13/177, thus managing to position itself as a Q1 (Primer Cuartil), in the category Chemistry, Multidisciplinary. Notably, the journal is positioned above the 90th percentile.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations provided by WoS (ESI, Clarivate), it yields a value for the citation normalization relative to the expected citation rate of: 3.34. This indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 13, 2025)

This information is reinforced by other indicators of the same type, which, although dynamic over time and dependent on the set of average global citations at the time of their calculation, consistently position the work at some point among the top 50% most cited in its field:

  • Weighted Average of Normalized Impact by the Scopus agency: 4.48 (source consulted: FECYT Mar 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2026-04-04, the following number of citations:

  • WoS: 122
  • Scopus: 125
  • Europe PMC: 9
[+]

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-04:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 127.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 127 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 20.
  • The number of mentions in news outlets: 1 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

[+]

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Taiwan.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Cored, J) and Last Author (Corma Canós, Avelino).

the authors responsible for correspondence tasks have been Concepcion, P and Corma Canós, Avelino.

[+]

Awards linked to the item

The research leading to these results has received funding from the Spanish Ministry of Science, Innovation and Universities through "Severo Ochoa" Excellence Programme (SEV-2016-0683) and the PGC2018-097277-B-100 (MCIU/AEI/FEDER, UE) project. The authors also thank the Microscopy Service of UPV for kind help with measurements. A G.O. thanks "Severo Ochoa" Programme (SEV-2016-0683) for a predoctoral fellowship. C.-H.C. acknowledges financial support from MOST project 107-2112-M-032-005. J.C. thanks the Spanish Government (MINECO) for a "Severo Ochoa" grant (BES-2015-075748). The authors are thankful for the support of the ALBA Synchrotron Light Source staff for the successful performance of the measurements at CIRCE beamline (BL24).
[+]