17702
This work paves the way toward the mass production of graphene - based HFs with desirable functionalities and morphologies for many of important applications in fluidics , catalysis , purification , separation , and sensing .
 Chemical: graphene
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: graphene