Evidence map›Paper›PMID 40468459›Full record

ArticleAngewandte Chemie (International ed. in English)2025

In Situ/Operando Probing of Dynamic Phase Structures of Alumina-Supported Ultrasmall Copper-Gold Alloy Nanoparticles Under Reaction Conditions.

Han-Wen Cheng, Jing Li, Shiyao Shan, Xiaowei Lv, Guanyu Chen, Merry Madiou, Dong Dinh, Seyed Danial Mousavi, Zhi-Peng Wu, Shan Wang and 7 more

Abstract read
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In one paragraph

Article in Angewandte Chemie (International ed. in English), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Oxidation-Induced Internal Chemical Patterning in Copper-Gold Nanoalloys.Small (Weinheim an der Bergstrasse, Germany) · 2026
    Article
  2. Article
  3. 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

17 authors.

Han-Wen ChengLaboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Department of Materials Science, Academy for Engineering & Technology, Fudan University, Shanghai, 200438, China.
Jing LiDepartment of Chemistry, State University of New York at Binghamton, Binghamton, NY, 13902, USA.
Shiyao ShanDepartment of Chemistry, State University of New York at Binghamton, Binghamton, NY, 13902, USA.
Xiaowei LvLaboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Department of Materials Science, Academy for Engineering & Technology, Fudan University, Shanghai, 200438, China.
Guanyu ChenLaboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Department of Materials Science, Academy for Engineering & Technology, Fudan University, Shanghai, 200438, China.
Merry MadiouDepartment of Chemistry, State University of New York at Binghamton, Binghamton, NY, 13902, USA.
Dong DinhDepartment of Chemistry, State University of New York at Binghamton, Binghamton, NY, 13902, USA.
Seyed Danial MousaviDepartment of Chemistry, State University of New York at Binghamton, Binghamton, NY, 13902, USA.
Zhi-Peng WuDepartment of Chemistry, State University of New York at Binghamton, Binghamton, NY, 13902, USA.
Shan WangDepartment of Chemistry, State University of New York at Binghamton, Binghamton, NY, 13902, USA.
Yazan MaswadehDepartment of Physics, Central Michigan University, Mt. Pleasant, MI, 48859, USA.
Valeri PetkovDepartment of Physics, Central Michigan University, Mt. Pleasant, MI, 48859, USA.
Susan LuDepartment of Chemistry, State University of New York at Binghamton, Binghamton, NY, 13902, USA.
Ke PeiLaboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Department of Materials Science, Academy for Engineering & Technology, Fudan University, Shanghai, 200438, China.
Wenbin YouLaboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Department of Materials Science, Academy for Engineering & Technology, Fudan University, Shanghai, 200438, China.
Renchao CheLaboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Department of Materials Science, Academy for Engineering & Technology, Fudan University, Shanghai, 200438, China.
Chuan-Jian ZhongDepartment of Chemistry, State University of New York at Binghamton, Binghamton, NY, 13902, USA.ORCID https://orcid.org/0000-0003-0746-250X

Funding

National Key Research Program of China 2024YFA1208902National Key Research Program of China 2024YFA1408000National Natural Science Foundation of China 12327804National Natural Science Foundation of China 22088101National Natural Science Foundation of China 22405050National Natural Science Foundation of China 52231007National Natural Science Foundation of China CHE 1566283National Natural Science Foundation of China CHE 2102482National Natural Science Foundation of China IIP 1640669National Natural Science Foundation of China T2321003National Science Foundation
6 · The paper itself

Abstract

The ability to control phase structures and surface sites of ultrasmall alloy nanoparticles under reaction conditions is essential for preparing catalysts by design. This is, however, challenging due to limited understanding of the atomic-scale phases and their correlation with the ensemble-averaged structures and activities of catalysts during catalytic reactions. We reveal here a dynamic structural stability of alumina-supported ultrasmall and equiatomic copper-gold alloy nanoparticles under reaction conditions as a model system in the in situ/operando study. In situ atomic-scale morphological tracking under oxygen reveals temperature-dependent dynamic crystalline-amorphous dual-phase structures, showing dynamic stability over an elevated temperature range. This atomic-scale dynamic phase stability coincides with a "conversion plateau" observed for carbon monoxide oxidation on the catalyst. It is substantiated by the stable lattice ordering/disordering structures and surface sites with oscillatory characteristics shown by operando ensemble-average structural tracking of the catalyst during the oxidation reaction. The understanding of the atomic-scale dynamic phase structures in correlation with the ensemble-average dynamic ordering/disordering phase structures and surface sites provides fresh insights into the unique synergy of the supported alloy nanoparticles. This understanding has implications for the design and structural tuning of active and stable ultrasmall alloy catalysts under elevated temperatures.

Indexed as

Dynamic phase structuresEquiatomic copper‐gold alloyIn situ atomic‐scale morphological trackingOperando ensemble‐averaged structural trackingUltrasmall nanoparticles

Identifiers

PMID40468459
PMCPMC12322633

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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.