9098
Novel strategy for preparation of graphene - Pd , Pt composite , and its enhanced electrocatalytic activity for alcohol oxidation .
 Chemical: graphene; Chemical: Pd; Chemical: Pt; Chemical: alcohol
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; Chemical: Pd; Chemical: Pt; Chemical: alcohol