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Furthermore , the Pt NP @ PPy NF showed excellent catalytic activity for the methanol oxidation reaction ( MOR ) and oxygen reduction reaction ( ORR ) , which displayed sufficient CO tolerance , and higher activity compared to the commercial Pt / C catalyst .
 Chemical: Pt; Chemical: PPy; Chemical: methanol; Chemical: oxygen; Chemical: CO; Chemical: Pt; Chemical: C
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: methanol; Chemical: oxygen; Chemical: CO; Chemical: Pt; Chemical: C