Insights into the Proton Transport Mechanism in TiO2 Simple Oxides by In Situ Raman Spectroscopy - Gao, Jun; Meng, Yuqing; Benton, Allen; He, Jian; Jacobsohn, Luiz G.; Tong, Jianhua; Brinkman, Kyle S. (ACS Applied Materials & Interfaces, 2020)