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Grant support

We thank the financial support of the EU (CHEMCOMP ERC Stg grant 279313), the Spanish Ministerio de Economia y Competitividad (grant CTQ2012-34088) and through a Severo Ochoa Excellence Accreditation 2014-2018 (SEV-2013-0319) and the ICIQ Foundation.

Analysis of institutional authors

Goberna-Ferrón, SaraAuthor

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Article

Activity and Stability of the Tetramanganese Polyanion [Mn4( H2O)2(PW9O34)2]10-during Electrocatalytic Water Oxidation

Publicated to:Inorganics. 3 (3): 332-340 - 2015-09-01 3(3), DOI: 10.3390/inorganics3030332

Authors: Goberna-Ferron, Sara; Soriano-Lopez, Joaquin; Ramon Galan-Mascaros, Jose

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Abstract

In natural photosynthesis, the oxygen evolving center is a tetranuclear manganese cluster stabilized by amino acids, water molecules and counter ions. However, manganese complexes are rarely exhibiting catalytic activity in water oxidation conditions. This is also true for the family of water oxidation catalysts (WOCs) obtained from POM chemistry. We have studied the activity of the tetranuclear manganese POM [Mn-4(H2O)(2) (PW9O34)(2)](10-) (Mn-4), the manganese analog of the well-studied [Co-4(H2O)(2) (PW9O34)(2)](10-) (Co-4), one of the fastest and most interesting WOC candidates discovered up to date. Our electrocatalytic experiments indicate that Mn-4 is indeed an active water oxidation catalysts, although unstable. It rapidly decomposes in water oxidation conditions. Bulk water electrocatalysis shows initial activities comparable to those of the cobalt counterpart, but in this case current density decreases very rapidly to become negligible just after 30 min, with the appearance of an inactive manganese oxide layer on the electrode.

Keywords

DrivenElectrocatalysisHomogeneous catalystIdentificatioManganesePhotosystem-iiPolyoxometalatePolyoxometalatesWater oxidatio

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Inorganics, Q4 Agency Scopus (SJR), its regional focus and specialization in Inorganic Chemistry, give it significant recognition in a specific niche of scientific knowledge at an international level.

From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 1.56, which 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: Dimensions May 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-05-31, the following number of citations:

  • WoS: 12
  • Scopus: 13
  • OpenCitations: 13

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 2025-05-31:

  • 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: 15 (PlumX).

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.

Leadership analysis of institutional authors

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 (Goberna Ferrón, Sara) .