I also found this article that explains how the Rydberg matter catalysts work.
Since I am not a chemist, maybe someone might be kind enough to explain this article to me in simple terms. No, I haven't read it yet. First-principles studies on K-promoted porous iron oxide catalysts sciencedirect.com/science/article/pii/S2352214315000106 <http://www.sciencedirect.com/science/article/pii/S2352214315000106>