13171
The working devices achieved very high total areal capacitance of 26 mF / cm ( 2 ) and retained 87 . 5 % of the original capacitance even after 10 000 charge / discharge cycles .
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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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