Results 191 to 200 of about 44,307 (293)

Electronic Structure Modulation via Composition‐Preserving Phase Transformations in Metal–Organic Assemblies on the Surface

open access: yesSmall, EarlyView.
We observed composition‐preserving stepwise transformation of metal–organic self‐assembly at room temperature and systematically investigated the consequent modification in electronic structure using scanning tunneling microscopy and spectroscopy (STM/STS), combined with density functional theory (DFT) calculations.
Hyungjun Park   +5 more
wiley   +1 more source

Sn Galvanic Exchange Enables Creation of Trimetallic Multiphase Plasmonic Nanoparticles

open access: yesSmall, EarlyView.
A compositionally versatile synthesis strategy has produced trimetallic nanoparticles with textured surface morphologies, coexisting alloy and intermetallic phase structures, and tunable plasmonic responses. The galvanic exchange of Sn within Au─Sn seeds provides access to Au─Sn─M (M = Pd, Rh, Cu) nanoparticles that maintain long‐range structural order
Sarah S. Dawes   +7 more
wiley   +1 more source

Do We Really Know Why Carbon Nanotubes Grow?

open access: yesSmall, EarlyView.
The CNT growth mechanism is still debated. We propose a heterogeneous (2D) classical nucleation framework comparing pathways for graphenic patches, caps, and full CNTs. Despite its simplicity, it rationalizes key trends, including the correlation between catalyst particle size and CNT diameter.
Nicola Verziaggi   +6 more
wiley   +1 more source

Structural intermetallic compounds.

open access: yesBulletin of the Japan Institute of Metals, 1987
openaire   +2 more sources

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