Self-assembly of iron(II) phthalocyanine (FePc) molecules on a Ge(001):H surface results in monolayer islands extending over hundreds of nanometers and comprising upright-oriented entities. Scanning tunneling spectroscopy reveals a transport gap of 2.70 eV in agreement with other reports regarding isolated FePc molecules. Detailed analysis of single FePc molecules trapped at surface defects indicates that the molecules stay intact upon adsorption and can be manipulated away from surface defects onto a perfectly hydrogenated surface. This allows for their isolation from the germanium surface.
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http://dx.doi.org/10.3762/bjnano.12.19 | DOI Listing |
ACS Nano
January 2025
Physikalisches Institut, Karlsruhe Institute of Technology, Karlsruhe 76131, Germany.
ACS Omega
November 2024
Department of Chemistry and Chemical Biology, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4M1, Canada.
Dissolved gases such as oxygen (DO) and ammonia (dNH) are among the most consequential parameters for the assessment of water quality. Since the concentrations of DO and dNH are interdependent through the nitrogen cycle, simultaneous monitoring can be useful in many applications. For example, in wastewater treatment, aeration baths are used to adjust the rate of removal of ammonia by the bioactive sludge.
View Article and Find Full Text PDFAdv Mater
December 2024
School of Materials Science and Engineering, Beihang University, Beijing, 100191, China.
M-N-C catalysts with nitrogen-coordinated metal single-atom active sites have demonstrated high activity for hydrogen storage materials, but their stability in this application remains uncertain. This study addresses this issue by using nickel phthalocyanine (NiPc) molecules on MgH₂ particles as a model system. It is found that the N-coordinated high-valence Ni single atoms in the NiN₄ active site are unstable in the reducing environment of hydrogen storage, spontaneously evolving into zero-valence Ni, forming a Ni₁-Mg single-atom alloy (SAA).
View Article and Find Full Text PDFNanoscale Adv
September 2024
College of Pharmacy, Anhui University of Chinese Medicine Hefei 230013 PR China
Exploration of nanocomposites with exceptional catalytic activities is essential for harnessing the unique advantages of each constituent in the domains of pharmaceutical analysis and electrochemical sensing. In this regard, we illustrated the synthesis of iron oxide/N-doped reduced graphene oxide (FeO/N-rGO) nanocomposites through a one-step thermal treatment of iron phthalocyanine (FePc), melamine, and graphene oxide for electrochemical sensing. The large specific surface area and good conductivity of N-rGO can efficiently capture rutin molecules and accelerate electron transport, thereby improving the electrochemical performance.
View Article and Find Full Text PDFMolecules
September 2024
Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, China.
In this paper, iron phthalocyanine nanowires on a nickel foam (FePc@NF) composite catalyst were prepared by a facile solvothermal approach. The catalyst showed good electrochemical oxygen evolution performance. In 1.
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