scholarly journals Intercalation of solvated Na-ions into graphite

2017 ◽  
Vol 10 (7) ◽  
pp. 1631-1642 ◽  
Author(s):  
L. Seidl ◽  
N. Bucher ◽  
E. Chu ◽  
S. Hartung ◽  
S. Martens ◽  
...  
Keyword(s):  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Electrochemical Quartz Crystal Microbalance ◽  
X Ray Diffraction ◽  
X Ray ◽  
Graphite Intercalation ◽  
Scanning Tunnelling ◽  
Tunnelling Microscopy ◽  
Na Ions ◽  
In Operando

The reversible intercalation of solvated Na-ions into graphite and the concomitant formation of ternary Na–graphite intercalation compounds (GICs) are studied using several in operando techniques, such as X-ray-diffraction (XRD), electrochemical scanning tunnelling microscopy (EC-STM) and the electrochemical quartz crystal microbalance technique (EQCM).

scholarly journals An Incommensurate Reconstruction Studied with Scanning Tunnelling Microscopy and Surface X-Ray Diffraction

1997 ◽  
Vol 8 (3) ◽  
pp. 167-174 ◽  
Author(s):  
Bernard Aufray ◽  
Mats Göthelid ◽  
Jean-Marc Gay ◽  
Christine Mottet ◽  
Erik Landemark ◽  
...  
Keyword(s):  
Scanning Tunnelling Microscopy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Scanning Tunnelling ◽  
Tunnelling Microscopy

Electrospun zinc oxide nanofibers for UV sensing with quartz crystal microbalance technique

2021 ◽  
pp. 2150042
Author(s):  
Xing-Sheng Ma ◽  
Hong-Di Zhang ◽  
Guo-Yi Li ◽  
Kun Guo ◽  
Yun-Ze Long
Keyword(s):  
Zinc Oxide ◽  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Uv Light ◽  
Frequency Difference ◽  
X Ray Diffraction ◽  
X Ray ◽  
Zno Nanofibers ◽  
The Stability ◽  
Sensing Membrane

An ultraviolet (UV) sensor consisting of a zinc oxide (ZnO) nanofiber sensing membrane and a quartz crystal microbalance (QCM) was fabricated. ZnO nanofibers were prepared by electrospinning and calcination. The morphology and structure of the nanofiber sensing membrane were characterized by scanning electron microscopy and X-ray diffraction. The QCM sensor based on ZnO nanofibers was found to be sensitive to 254-nm UV light in nitrogen, oxygen and air atmospheres. When the QCM sensor was placed under UV irradiation, the resonant frequency difference rapidly decreased. When the light was removed, the frequency difference recovered until reaching 0 Hz. The stability and repeatability of the proposed ZnO nanofiber-based QCM sensor were demonstrated, and the sensing mechanism was briefly discussed.

The Effect of Acetate on the Electrodeposition of Manganese on Polycrystalline Au without SeO2 Additives

2014 ◽  
Vol 937 ◽  
pp. 34-40
Author(s):  
Wen Po Li ◽  
Xiu Li Zuo ◽  
Jun Ying Yang ◽  
Sheng Tao Zhang
Keyword(s):  
Spectroscopic Ellipsometry ◽  
Quartz Crystal ◽  
Single Layer ◽  
Electrochemical Quartz Crystal Microbalance ◽  
X Ray Diffraction ◽  
Energy Dispersion Spectroscopy ◽  
X Ray ◽  
Composition And Structure ◽  
Single Layer Model

The influence of acetate additives on the mechanism of manganese electrodeposition from chloride-based acidic solution was investigated by electrochemical quartz crystal microbalance and spectroscopic ellipsometry. The EQCM data were represented as plots △m versusE.Because they are not affected by interference from the hydrogen evolution reaction, they clearly show the manganese reduction and oxidation processes. The in situ spectroscopic ellipsometry ( SE) data were analyzed with a single-layer model ( substrate Au - deposition Mn layer) and the thicknesses of Mn layer were obtained by fitting experimental data with the model.Morphology, chemical composition and structure of the manganese deposits were analyzed by scanning electron microscopy (SEM), energy dispersion spectroscopy (EDS), and X-ray diffraction (XRD). The results showed that in the absence of acetate additives, Mn (OH)2is formed. In the presence of acetate additives, the formation of α-Mn was observed and the deposition rate of Mn electrodeposition on the Au electrode slowed down.

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