9174
Elemental compositions were determined using scanning transmission electron microscopy / energy - dispersive X - ray spectroscopy ( STEM / EDS ) and inductively coupled plasma atomic emission spectroscopy ( ICP - AES ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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