23032
This intrinsically multifunctional Pt NP @ PPy NF with well - controlled Pt facets thus could serve as an advanced electrocatalyst for biosensing and fuel cell applications , surpassing the performance of many existing materials .
 Chemical: Pt; Chemical: PPy; Chemical: Pt
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: Pt; Chemical: PPy; Chemical: Pt