8160
In addition , we demonstrate that the Ti underlayer promotes the electrochemical properties in the Si / Fe multilayer for various Fe layer thicknesses because of the enhanced adhesion of the interfacial electrode and current collector .
 Chemical: Ti; Chemical: Si; Chemical: Fe; Chemical: Fe
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: Ti; Chemical: Si; Chemical: Fe; Chemical: Fe