25739
We believe that the conduction electrons of the NPs gain the light absorbed energy producing energetic electrons at the surface Pd sites , which enhances the sites ' intrinsic catalytic ability .
 Chemical: Pd
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: Pd