Onset of High Methane Combustion Rates over Supported Palladium Catalysts: From Isolated Pd Cations to PdO Nanoparticles oleh Yanran Cui, Johnny Zhu Chen, Bo Peng, Libor Kovarik, Arun Devaraj, Zhe Li, Tao Ma, Yilin Wang, Janos Szanyi, Jeffrey T. Miller, Yong Wang, Feng Gao