10755
The enhancement of the electrical conductivity by doping is important in hematite ( alpha - Fe ( 2 ) O ( 3 ) ) photoanodes for efficient solar water oxidation .
 hematite, alpha - Fe ( 2 ) O ( 3 )
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 hematite, alpha - Fe ( 2 ) O ( 3 )