1. State Key Laboratory of Explosion Science and TechnologySchool of Mechatronical EngineeringBeijing Institute of Technology Beijing 100081 P. R. China
2. School of Materials Science and EngineeringNanyang Technological University (Singapore) Singapore 639798 Singapore
3. Centre for Clean Environment and Energy, School of Environment and ScienceGriffith University Gold Coast Campus QLD 4222 Australia
4. College of ChemistryZhengzhou University Zhengzhou 450001 P. R. China
5. College of Materials and Chemical EngineeringKey Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion MaterialsChina Three Gorges University Yichang Hubei 443002 P. R. China