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Analysis of institutional authors

Anemone, GloriaAuthorAzcondo, Maria TAuthorAmador, UlisesCorresponding Author

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December 1, 2025
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Green Hydrogen Production via Water Splitting Using SrFe0.9Mo0.1O3-δ Perovskite as a Catalyst

Publicated to: Small Structures. 6 (12): e202500544- - 2025-12-01, DOI: 10.1002/sstr.202500544

Authors:

Anemone, Gloria; Azcondo, Maria T; Munoz-Noval, Alvaro; Al Taleb, Amjad; Rubio-Zuazo, Juan; Farias, Daniel; Amador, Ulises
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Affiliations

CSIC, Inst Ciencia Mat Madrid, Sor Juana Ines Cruz 3, Madrid 28049, Spain - Author
CUNEF Univ, Dept Matemat, Madrid 28040, Spain - Author
ESRF, SpLine Spanish CRG Beamline, Rue J Horowitz, F-38042 Grenoble, Isere Rhone Alp, France - Author
Imdea Nanociencia, Faraday 9, Madrid 28049, Spain - Author
Univ Autonoma Madrid, Condensed Matter Phys Ctr IFIMAC, Madrid 28049, Spain - Author
Univ Autonoma Madrid, Dept Fis Mat Condensada, Madrid 28049, Spain - Author
Univ Autonoma Madrid, Inst Nicolas Cabrera, Madrid 28049, Spain - Author
Univ Complutense, Fac Fis, Dept Fis Mat, E-28040 Madrid, Spain - Author
Univ San Pablo CEU, CEU Univ, Fac Farm, Dept Quim & Bioquim, E-28668 Madrid, Spain - Author
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Abstract

Evidence of hydrogen production from water splitting using a nonstoichiometric cubic perovskite, SrFeMoO (SFMO), as a catalyst under moderate operating condition is presented. It is demonstrated that the SFMO oxide, when reduced at 800 degrees C in air, can dissociate water to produce hydrogen and oxygen at the same temperature. The direct test of water dissociation with consequent hydrogen production is carried out using quadrupole mass spectrometry (QMS) under ultrahigh vacuum conditions, where the production of hydrogen by the material is unambiguously determined using heavy water. In addition, in operando synchrotron X-ray diffraction and X-ray absorption spectroscopy are employed to track structural and electronic changes during the reaction, revealing a reversible unit cell expansion without oxygen incorporation and indicating a nonredox mechanism distinct from that of conventional perovskites. This combined characterization approach enables correlation between gas-phase evolution and the structural and electronic response of the catalyst. The reaction cycle could be repeated several times without any decomposition, segregation, or irreversible structural changes, demonstrating the high stability of SFMO. These findings highlight SFMO as a robust and stable catalyst for sustainable hydrogen generation, with strong potential for integration into solar-driven water splitting technologies.
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Keywords

CatalysisChemical expansionEdgeGreen hydrogenH2oNonstoichiometric perovskitesOxidesWater-splitting

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Small Structures 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, 2025, it was in position 90/473, thus managing to position itself as a Q1 (Primer Cuartil), in the category Materials Science, Multidisciplinary.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2026-11-10:

  • WoS: 1
  • Scopus: 1
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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 2026-11-10:

  • 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: 6.
  • 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: 6 (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: 34.
  • The number of mentions on the social network X (formerly Twitter): 2 (Altmetric).
  • The number of mentions in news outlets: 4 (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:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
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Leadership analysis of institutional authors

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

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 (ANEMONE, GLORIA) and Last Author (AMADOR ELIZONDO, ULISES JULIO).

the author responsible for correspondence tasks has been AMADOR ELIZONDO, ULISES JULIO.

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Awards linked to the item

The authors thank "MCIN/AEI/10.13039/501100011033 and Fondo Europeo de Desarrollo Regional" (FEDER/UE "Una manera de hacer Europa") for funding the project PID2022-139501OB-C21. The authors also thank BM5 Spline line and CSIC for allocating beamtime and facilitating the access to ESRF for XAS and SXRD experiments, through grants A25-2-1017, A25-2-1076, MA-4722, and IH-CH-1546. M.T.A. and U.A. also thank USP-CEU for financial support. This work has been partially supported by the Spanish Ministerio de Ciencia e Innovacion under project PID2023-147466OB-C21. The COST Action CA21101 is also acknowledged. D.F. acknowledges financial support from the Spanish Ministry of Economy and Competitiveness, through the "Mara de Maeztu" Programme for Units of Excellence in R&D (CEX2023-001316-M). AMN thanks the project PID2021-126323OA-I00.
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