11723
Devices comprising MnOx - carbon nanofoams with interconnecting networks of meso - and macropores balance capacitance and rate performance , delivering 33 F g ( - 1 ) at 5 mV s ( - 1 ) and 23 F g ( - 1 ) at 50 mV s ( - 1 ) .
 Chemical: MnOx; Chemical: carbon
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: MnOx; Chemical: carbon