1. Department of Environmental Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
2. CSIRO Energy, Newcastle, New South Wales 2304, Australia
3. China University of Mining & Technology Beijing, Beijing 100083, China
4. University of New South Wales, Sydney, New South Wales 2052, Australia
5. CSIRO Energy, North Ryde, New South Wales 2113, Australia
6. Huaneng Clean Energy Research Institute, Beijing 102209, China
7. Fujian Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, China