11538
In particular , RDS represents a scalable procedure that is based on microwave - assisted plasma formation that allows the production in series of mesoporous NiO electrodes with large surface areas for p - type cell photocathodes .
 NiO
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 NiO