What you just wrote seems to contradict itself  If these professors have contributed as much to the field as Dr Nocera then why would it be hard to add information about their research to the article  You dont necessarily need to think of it as filling up the article  Just add what you know and what you can source and if the article starts to become too lengthy then trim down some other parts of the article   I wouldnt remove any of the mentions of Nocera just because you think the article is biased though The point here is to get a summary of all of the research on artificial photosynthesis in one place  If people have done that thus far by pointing to Noceras research a lot then thats fine  If editors want to write about research in this field by pointing to other scientists companies of professors then thats fine too  The important thing here is to retain all the information not to give an honorable mention to every professor who works in this area