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Analysis of institutional authors

Diaz, IsabelAuthor

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October 7, 2024
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PREPARATION AND CHARACTERIZATION OF VERNOLIC ACID METHYL ESTER FUNCTIONALIZED ORDERED MESOPOROUS MATERIALS

Publicated to: Bulletin Of The Chemical Society Of Ethiopia. 37 (3): 689-702 - 2023-01-01 37(3), DOI: 10.4314/bcse.v37i3.12

Authors:

Chebude, Yonas; Gonfa, Gutta; Diaz, Isabel
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Affiliations

Addis Ababa Univ, Chem Dept, Addis Ababa 1176, Ethiopia - Author
Coll Nat Sci, Chem Dept, POB 378, Jimma, Ethiopia - Author
Inst Catalisis & Petroleoquim, CSIC, C Marie Curie 2, Madrid 28049, Spain - Author
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Abstract

Vernonia oil is a naturally epoxidized triglyceride oil extracted from the seed of Vernonia galamensis, a native plant in East Africa. After hydrolysis to vernolic acid (VA) and derivatization, vernolic acid methyl ester (VAME) is synthesized and used to functionalize ordered mesoporous materials (OMM). Al-MCM-41 with Si/Al ratio of 15, pure silica SBA-15 and periodic mesoporous organosilica (PMO) are employed as supports exploring the different surface properties. Following optimization of the VAME/OMM ratios, selected samples, i.e. those with 13% VAME, were impregnated with AgNO3 in NaBH4 to obtain Ag-nanoparticles. The final AgVAME-OMM potential catalysts were characterized by transmission electron microscopy, observing an efficient loading of Ag nanoparticles in pure silica SBA-15 with VAME with 500 m2 specific surface area and 6 nm pore size.
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Keywords

CatalysiDerivativeFunctionalizationImmobilizationKey wordsOrdered mesoporous materialsSilicaSilver nanoparticlesVernolic acid methyl esterVernonia oil

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Bulletin Of The Chemical Society Of Ethiopia, and although the journal is classified in the quartile Q3 (Agencia WoS (JCR)), its regional focus and specialization in Chemistry, Multidisciplinary, give it significant recognition in a specific niche of scientific knowledge at an international level.

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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 2026-01-13:

  • 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: 1 (PlumX).

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

    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: Ethiopia.

    There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: Last Author (DIAZ RODRIGUEZ, M. ISABEL).

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    Awards linked to the item

    This work was funded by the Spanish Agency for International Development Cooperation AECID INNOVACION (2020/ACDE/000373) . The authors would like to acknowledge Paul McClory from Vernique Biotech, UK (company dissolved) for the donation of the vernonia seeds.
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