9100
The surface of graphene oxide is first sensitized by Sn ( 2 + ) ions , and subsequently , Pd or Pt nanoparticles are deposited on the surface of graphene oxide .
 Chemical: graphene oxide; Chemical: Sn ( 2 + ); Chemical: Pd; Chemical: Pt; Chemical: graphene oxide
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 oxide; Chemical: Sn ( 2 + ); Chemical: Pd; Chemical: Pt; Chemical: graphene oxide