English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

In-situ scanning tunneling microscopy (STM) and X-ray photoelectron spectroscopy (XPS) measurements have been performed to investigate the formation and thermal stability of mono- and bimetallic AuxFe1-x (x = 1, 0.8, 0.5, 0.2, 0) nanoparticles (NPs) supported on TiO2(110). Nearly hexagonal arrangements of size-selected Au, Fe, and Au−Fe NPs with well-defined interparticle distances have been achieved by diblock-copolymer encapsulation. Upon stepwise annealing from 300 to 1060 °C, a remarkable thermal stability of the Au−Fe NPs was observed, maintaining their original spatial arrangement on the TiO2 surface up to 900 °C. A majority phase of a gold−iron alloy (solid solution) was achieved for our Au0.5Fe0.5 NPs in the temperature range of 700 °C - 800 °C, and for Au0.2Fe0.8 NPs at 800 °C, while a phase mixture of bcc Fe and Au−Fe alloy was observed for the Au0.8Fe0.2 system at 800 °C-900 °C. For all samples the segregation of Au atoms toward the NP surface was detected upon high temperature annealing (800 °...

the journal of physical chemistry c

Thermal Stability and Segregation Processes in Self-Assembled Size-Selected AuxFe1-x Nanoparticles Deposited on TiO2(110): Composition Effects