Evidence map›Paper›PMID 40290939›Full record

ArticleACS omega2025

Pyrolytic Transformation of Zn-TAL Metal-Organic Framework into Hollow Zn-N-C Spheres for Improved Oxygen Reduction Reaction Catalysis.

Gulnara Yusibova, John C Douglin, Iuliia Vetik, Jekaterina Pozdnjakova, Kefeng Ping, Jaan Aruväli, Arvo Kikas, Vambola Kisand, Maike Käärik, Jaan Leis and 10 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in ACS omega, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Dynamic Evolution of Bimetallic Single-Atom Catalysts during Carbon Dioxide Reduction Probed byChemistry of materials : a publication of the American Chemical Society · 2026
    Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

20 authors.

Gulnara YusibovaInstitute of Chemistry, University of Tartu, Ravila 14a, 50411 Tartu, Estonia.
John C DouglinThe Wolfson Department of Chemical Engineering, Technion-Israel Institute of Technology, 3200003 Haifa, Israel.ORCID https://orcid.org/0000-0003-4151-1424
Iuliia VetikInstitute of Chemistry, University of Tartu, Ravila 14a, 50411 Tartu, Estonia.
Jekaterina PozdnjakovaInstitute of Chemistry, University of Tartu, Ravila 14a, 50411 Tartu, Estonia.
Kefeng PingYichang Humanwell Pharmaceutical Co., Ltd, 19 Dalian Rd, Xiling District, Yichang, 443005 Hubei, China.
Jaan AruväliInstitute of Ecology and Earth Sciences, University of Tartu, Ravila 14a, 50411 Tartu, Estonia.
Arvo KikasInstitute of Physics, University of Tartu, Ostwaldi 1, 50411 Tartu, Estonia.
Vambola KisandInstitute of Physics, University of Tartu, Ostwaldi 1, 50411 Tartu, Estonia.ORCID https://orcid.org/0000-0001-9765-055X
Maike KäärikInstitute of Chemistry, University of Tartu, Ravila 14a, 50411 Tartu, Estonia.
Jaan LeisInstitute of Chemistry, University of Tartu, Ravila 14a, 50411 Tartu, Estonia.ORCID https://orcid.org/0000-0002-3352-5909
Tiit KaljuveeDepartment of Materials and Environmental Technology, Tallinn Technical University, Ehitajate tee 5, 19086 Tallinn, Estonia.
Peeter PaaverInstitute of Ecology and Earth Sciences, University of Tartu, Ravila 14a, 50411 Tartu, Estonia.
Sven OrasInstitute of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia.ORCID https://orcid.org/0000-0002-8313-8608
Łukasz CiupińskiFaculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland.
Tomasz PlocinskiFaculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland.
Marina KonuhovaInstitute of Solid State Physics, University of Latvia, 8 Kengaraga, LV-1063 Riga, Latvia.
Anatoli I PopovInstitute of Solid State Physics, University of Latvia, 8 Kengaraga, LV-1063 Riga, Latvia.
Dario R DekelThe Wolfson Department of Chemical Engineering, Technion-Israel Institute of Technology, 3200003 Haifa, Israel.ORCID https://orcid.org/0000-0002-8610-0808
Vladislav IvaništševInstitute of Chemistry, University of Tartu, Ravila 14a, 50411 Tartu, Estonia.ORCID https://orcid.org/0000-0003-4517-0540
Nadezda KongiInstitute of Chemistry, University of Tartu, Ravila 14a, 50411 Tartu, Estonia.ORCID https://orcid.org/0000-0001-9680-0421

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Metal-organic frameworks (MOFs) are promising precursors for creating metal-nitrogen-carbon (M-N-C) electrocatalysts with high performance, though maintaining their structure during pyrolysis is challenging. This study examines the transformation of a Zn-based MOF into an M-N-C electrocatalyst, focusing on the preservation of the carbon framework and the prevention of Zn aggregation during pyrolysis. A highly porous Zn-N-C electrocatalyst derived from Zn-TAL MOF (where TAL stands for the TalTech-UniTartu Alliance Laboratory) was synthesized via optimized pyrolysis, yielding notable electrocatalytic activity toward oxygen reduction reaction (ORR). Scanning electron microscopy (SEM) and X-ray diffraction spectroscopy (XRD) analyses confirmed that the carbon framework preserved its integrity and remained free of Zn metal aggregates, even at elevated temperatures. Rotating disc electrode (RDE) tests in an alkaline solution showed that the optimized Zn-N-C electrocatalyst demonstrated ORR activity on par with commercial Pt/C electrocatalysts. In an anion-exchange membrane fuel cell (AEMFC), the Zn-N-C material pyrolyzed at 1000 °C exhibited a peak power density of 553 mW cm

Identifiers

PMID40290939
PMCPMC12019727

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.