Measurements of the chemical composition of LTO:Cu powders - Open Research Data - Bridge of Knowledge

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Measurements of the chemical composition of LTO:Cu powders

Description

Lithium titanate doped by copper was measured by X-ray photoemission spectroscopy (XPS). For sol-gel synthesis lithium acetate dehydrate and titanium (IV) butoxide 97% and copper (II) nitrate from Alfa Aesar were used as a reagents. Cu precursor was added in the proper weight to get an x index equal 0, 0.1 and 0.2. In the first step lithium acetate and copper nitrate were dissolved in ethanol using magnetic stirrer. After that titanium (IV) butoxide was added. Subsequently, prepared sol was mixed at room temperature for 10 minutes until it transformed into homogenous gel. The gel was then left for seven days in open laboratory flask at room temperature to evaporate the solvent. After that it was dried at 100oC for 20 hours in argon atmosphere. The gel was then calcined in argon atmosphere for 20 hours at 550oC. Finally, dark grey powder samples were compressed into pellets. Chemical composition of the saples was investigated by Omicron NanoTechnology X-ray photoemission spectroscopy (XPS). The photoelectrons were excited by a MgKa X-ray source operated at 15 keV and 300 W.

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CC BY
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Details

Year of publication:
2021
Verification date:
2021-07-26
Creation date:
2020
Dataset language:
English
Fields of science:
  • materials engineering (Engineering and Technology)
DOI:
DOI ID 10.34808/93pr-zq76 open in new tab
Verified by:
Gdańsk University of Technology

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