Nanyang Technological University (NTU) - School of Chemical and Biomedical Engineering, Tsinghua University - Key Laboratory of Organic Optoelectronics & Molecular Engineering, National Taiwan University - Department of Chemistry, King Abdullah University of Science and Technology (KAUST) - Clean Combustion Research Center (CCRC), Nanyang Technological University (NTU) - School of Chemical and Biomedical Engineering, Chinese Academy of Sciences (CAS) - Mössbauer Effect Data Center, Chinese Academy of Sciences (CAS) - State Key Laboratory of Catalysis, Agency for Science, Technology and Research (A*STAR) - Institute of Chemical and Engineering Sciences, Nanyang Technological University (NTU) - School of Chemical and Biomedical Engineering, Nanyang Technological University (NTU) - Division of Physics and Applied Physics, Chinese Academy of Sciences (CAS) - Mössbauer Effect Data Center, Government of the United States of America - Advanced Photon Source (APS), Government of the United States of America - Advanced Photon Source (APS), Chinese Academy of Sciences (CAS) - Beijing Synchrotron Radiation Facility, University of Science and Technology of China (USTC) - National Synchrotron Radiation Laboratory Research Center, National Taiwan University - Department of Chemistry, Nanyang Technological University (NTU) - Division of Physics and Applied Physics, Tsinghua University - Department of Chemistry, Chinese Academy of Sciences (CAS) - State Key Laboratory of Catalysis, Southern University of Science and Technology - Department of Chemistry, Chinese Academy of Sciences (CAS) - State Key Laboratory of Catalysis and Nanyang Technological University (NTU) - School of Chemical and Biomedical Engineering