Evidence map›Paper›PMID 38125980›Full record

ArticleACS catalysis2023

Compositional Evolution of Individual CoNPs on Co/TiO

Chengwu Qiu, Yaroslav Odarchenko, Qingwei Meng, Hongyang Dong, Ines Lezcano Gonzalez, Monik Panchal, Paul Olalde-Velasco, Francesco Maccherozzi, Laura Zanetti-Domingues, Marisa L Martin-Fernandez and 1 more

Open access · hybridAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in ACS catalysis, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.7field-weighted citation impact, top 36% of its field
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

1 citing paper in PubMed, 7 citations in OpenAlex.

  1. 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

11 authors at 3 institutions in 2 countries.

Chengwu QiuDepartment of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
Yaroslav OdarchenkoDepartment of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.ORCID https://orcid.org/0000-0002-4313-8435
Qingwei MengSchool of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006 (China).
Hongyang DongDepartment of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
Ines Lezcano GonzalezDepartment of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
Monik PanchalDepartment of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
Paul Olalde-VelascoDiamond Light Source, Harwell, Didcot, Oxfordshire OX11 0DE, U.K.ORCID https://orcid.org/0000-0003-0882-0778
Francesco MaccherozziDiamond Light Source, Harwell, Didcot, Oxfordshire OX11 0DE, U.K.
Laura Zanetti-DominguesResearch Complex at Harwell (RCaH), Harwell, Didcot, Oxfordshire OX11 0FA, U.K.
Marisa L Martin-FernandezResearch Complex at Harwell (RCaH), Harwell, Didcot, Oxfordshire OX11 0FA, U.K.ORCID https://orcid.org/0000-0001-5496-6300
Andrew M BealeDepartment of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.ORCID https://orcid.org/0000-0002-0923-1433
Research Complex at Harwell · GBDiamond Light Source · GBGuangdong University of Technology · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The nanoparticle (NP) redox state is an important parameter in the performance of cobalt-based Fischer-Tropsch synthesis (FTS) catalysts. Here, the compositional evolution of individual CoNPs (6-24 nm) in terms of the oxide vs metallic state was investigated in situ during CO/syngas treatment using spatially resolved X-ray absorption spectroscopy (XAS)/X-ray photoemission electron microscopy (X-PEEM). It was observed that in the presence of CO, smaller CoNPs (i.e., ≤12 nm in size) remained in the metallic state, whereas NPs ≥ 15 nm became partially oxidized, suggesting that the latter were more readily able to dissociate CO. In contrast, in the presence of syngas, the oxide content of NPs ≥ 15 nm reduced, while it increased in quantity in the smaller NPs; this reoxidation that occurs primarily at the surface proved to be temporary, reforming the reduced state during subsequent UHV annealing. O K-edge measurements revealed that a key parameter mitigating the redox behavior of the CoNPs were proximate oxygen vacancies (O

Identifiers

PMID38125980
PMCPMC10729030
OpenAlexW4389077116

What OpenQuestion holds

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Registered trials

None linked

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.