Stabilization of Epitaxial NiO(001) Ultra-Thin Films on Body-Centered-Cubic Ni(001)-p(1x1)O DOI Open Access
A. Picone,

F. Ciccacci,

Lamberto Duò

et al.

Coatings, Journal Year: 2025, Volume and Issue: 15(5), P. 507 - 507

Published: April 23, 2025

Ultrathin NiO films, ranging from 1 to 16 monolayers (ML) in thickness, have been stabilized via reactive molecular beam epitaxy on the (001) surface of a metastable body-centered cubic (BCC) Ni film. Low-energy electron diffraction (LEED) confirms that grows as crystalline film, exposing surface. Auger spectroscopy (AES) reveals slight oxygen excess compared perfectly stoichiometric Scanning tunneling microscopy (STM) shows at low coverages film exhibits atomically flat terraces, while higher coverage “wedding cake” morphology emerges. (STS) thickness-dependent evolution electronic band gap, which increases 0.8 eV 3 ML 3.5 ML. The center gap is approximately 0.2 above Fermi level, indicating p-doped.

Language: Английский

Interfacial evolution of Ru/TiO2 catalysts in NH3 decomposition DOI
Wenjie Yan,

Weijue Wang,

Qinhua Gu

et al.

Journal of Energy Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Citations

0

Intelligent Systems for Inorganic Nanomaterial Synthesis DOI Creative Commons

Cunhao Han,

Xinghua Dong, Wang Zhang

et al.

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(8), P. 631 - 631

Published: April 21, 2025

Inorganic nanomaterials are pivotal foundational materials driving traditional industries’ transformation and emerging sectors’ evolution. However, their industrial application is hindered by the limitations of conventional synthesis methods, including poor batch stability, scaling challenges, complex quality control requirements. This review systematically examines strategies for constructing automated systems to enhance production efficiency inorganic nanomaterials. Methodologies encompassing hardware architecture design, software algorithm optimization, artificial intelligence (AI)-enabled intelligent process analyzed. Case studies on quantum dots gold nanoparticles demonstrate enhanced closed-loop machine learning-enabled autonomous optimization parameters. The study highlights critical role automation, technologies, human–machine collaboration in elucidating mechanisms. Current challenges cross-scale mechanistic modeling, high-throughput experimental integration, standardized database development discussed. Finally, prospects AI-driven envisioned, emphasizing potential accelerate novel material discovery revolutionize nanomanufacturing paradigms within framework AI-plus initiatives.

Language: Английский

Citations

0

Particle Hopping and Coalescence of Supported Au Nanoparticles in Harsh Reactive Environments DOI
Shuoqi Zhang, Han Yu, Xiaoyan Li

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Sintering of supported metal nanoparticles (NPs) is a general and important phenomenon in materials catalysis science. A consensus view that it takes place either via the Ostwald ripening (OR) or particle migration coalescence (PMC) mechanism through substrate, but how sintering occurs under high gas pressure temperature has not been addressed. Here, we perform millisecond-scale environmental kinetic Monte Carlo (EKMC) simulations combined with density functional theory (DFT) calculations to reveal unique through-space mechanism, hopping (PHC). Under CO temperature, Au NPs NP up from anatase TiO2(101) substrate mass transfer phase. When sintered floating reaches critical size, spontaneously redeposits onto substrate. This process driven by preference interfacial atoms small interact rather than at chemical potential. The PHC implies intersubstrate catalyst may occur easier expected during reactions provides distinct perspective understand thermal deactivation harsh operando conditions.

Language: Английский

Citations

0

Evaluating and mitigating bias in AI-based medical text generation DOI
Xiuying Chen, Tairan Wang, Juexiao Zhou

et al.

Nature Computational Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 23, 2025

Language: Английский

Citations

0

Stabilization of Epitaxial NiO(001) Ultra-Thin Films on Body-Centered-Cubic Ni(001)-p(1x1)O DOI Open Access
A. Picone,

F. Ciccacci,

Lamberto Duò

et al.

Coatings, Journal Year: 2025, Volume and Issue: 15(5), P. 507 - 507

Published: April 23, 2025

Ultrathin NiO films, ranging from 1 to 16 monolayers (ML) in thickness, have been stabilized via reactive molecular beam epitaxy on the (001) surface of a metastable body-centered cubic (BCC) Ni film. Low-energy electron diffraction (LEED) confirms that grows as crystalline film, exposing surface. Auger spectroscopy (AES) reveals slight oxygen excess compared perfectly stoichiometric Scanning tunneling microscopy (STM) shows at low coverages film exhibits atomically flat terraces, while higher coverage “wedding cake” morphology emerges. (STS) thickness-dependent evolution electronic band gap, which increases 0.8 eV 3 ML 3.5 ML. The center gap is approximately 0.2 above Fermi level, indicating p-doped.

Language: Английский

Citations

0