28447
Facile Preparation of Ordered Porous Graphene - Metal Oxide @ C Binder - Free Electrodes with High Li Storage Performance .
 Chemical: Graphene; Chemical: Metal Oxide; Chemical: Li
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: Metal Oxide; Chemical: Li