Intrinsic and external active sites of single-atom catalysts.

Xue Yao, Ethan Halpren, Ye Zhou Liu, Chung Hsuan Shan, Zhi Wen Chen, Li Xin Chen, Chandra Veer Singh

Abstract readReview

In one paragraph

Review in iScience, 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

–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

1 citing paper in PubMed.

Low-valent Mo single atoms stabilized by electronegative oxygen coordination enable efficient water oxidation.Chemical science · 2026
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

7 authors.

Xue YaoDepartment of Materials Science and Engineering, University of Toronto, Toronto, ON M5S 3E4, Canada.

Ethan HalprenDepartment of Materials Science and Engineering, University of Toronto, Toronto, ON M5S 3E4, Canada.

Ye Zhou LiuDepartment of Materials Science and Engineering, University of Toronto, Toronto, ON M5S 3E4, Canada.

Chung Hsuan ShanDepartment of Materials Science and Engineering, University of Toronto, Toronto, ON M5S 3E4, Canada.

Zhi Wen ChenDepartment of Materials Science and Engineering, University of Toronto, Toronto, ON M5S 3E4, Canada.

Li Xin ChenDepartment of Materials Science and Engineering, University of Toronto, Toronto, ON M5S 3E4, Canada.

Chandra Veer SinghDepartment of Materials Science and Engineering, University of Toronto, Toronto, ON M5S 3E4, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Active components with suitable supports are the common paradigm for industrial catalysis, and the catalytic activity usually increases with minimizing the active component size, generating a new frontier in catalysis, single-atom catalysts (SACs). However, further improvement of SACs activity is limited by the relatively low loading of single atoms (SAs, which are heteroatoms for most SACs, i.e., external active sites) because of the highly favorable aggregation of single heteroatoms during preparation. Research interest should be shifted to investigate SACs with intrinsic SAs, which could circumvent the aggregation of external SAs and consequently increase the SAs loading while maintaining them individual to further improve the activity. In this review, SACs with external or intrinsic SAs are discussed and, at last, the perspectives and challenges for obtaining high-loading SACs with intrinsic SAs are outlined.

Indexed as

CatalysisChemistryMaterials science

Identifiers

PMID37496678

DOI10.1016/j.isci.2023.107275

PMCPMC10366547

What OpenQuestion holds

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LicenceCC BY-NC-ND

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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.