1. Graduate School of Chemical
Sciences and Engineering, Hokkaido University, Kita13, Nishi8, Kita-ku, Sapporo, Hokkaido 060-8628 Japan
2. Hetero interface design group,
Global Research Center for Environment and Energy based on Nanomaterials
Science (GREEN), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 Japan
3. Laboratory of Fuel Cells, Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, China
4. School of Materials Science
and Engineering, Dalian University of Technology, 2 Linggong Road, Dalian, Liaoning 116024, China
5. NIMS Beamline Station at SPring-8, National Institute for Materials Science, Sayo, Hyogo
679-5148 Japan
6. Centre for Microscopy
and Microanalysis, The University of Queensland, St. Lucia, Brisbane,
Qld 4072, Australia