1. School of Energy and Environment City University of Hong Kong Kowloon Hong Kong SAR P. R. China
2. Particles and Catalysis Research Group School of Chemical Engineering The University of New South Wales NSW 2052 Australia
3. Centre for Translation Atomaterials Faculty of Science Engineering and Technology Swinburne University of Technology Melbourne VIC 3122 Australia
4. Nanyang Environment and Water Research Institute Environmental Chemistry and Materials Centre Nanyang Technological University Singapore 637141 Singapore
5. Institute for Solar Fuels Helmholtz‐Zentrum Berlin für Materialien und Energie GmbH Hahn‐Meitner‐Platz 1 14109 Berlin Germany