1. Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, Wuhan National Laboratory for OptoelectronicsSchool of Chemistry and Chemical EngineeringHuazhong University of Science and Technology (HUST) 1037 Luoyu Road Wuhan 430074 P. R. China
2. School of Materials Science and EngineeringUniversity of Shanghai for Science and Technology 516 Jungong Road Shanghai 200093 P. R. China
3. Laboratory of MaterialsWater and Environmental ChemistryFaculty of Science and TechnologyDepartment of ChemistryAbdou Moumouni University of Niamey Niamey BP 10662 Niger