This email is to announce that James Harris will be defending his thesis: Titration and Characterization of Lewis Acid Sites in Siliceous Oxides for the Catalysis of Oxygenates Thursday, July 27, 2017 at 9:00 AM in FRNY 1043. The dissertation is directed by Drs. Ribeiro and Gounder. The abstract is attached, and all are welcome to attend. Bev Johnson Graduate Program Administrator Chemical Engineering Forney Hall 2043A Purdue University 765-494-4057 [P bling]