13245
This work highlights the potential of using highly active and stable IrO ( 2 ) - SnO ( 2 ) amorphous NPs to enhance the electrolysis efficiency , reduce the noble - metal Ir loading and thus the cost of hydrogen production from the solid polymer electrolyte water electrolysis .
 IrO ( 2 ), SnO ( 2 ), Ir, hydrogen
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 IrO ( 2 ), SnO ( 2 ), Ir, hydrogen