1. Beijing National Laboratory for Molecular Sciences Key Laboratory of Engineering Plastics Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 Beijing 100190 P. R. China
2. Department of Mechanical and Energy Engineering Southern University of Science and Technology Nanshan District Shenzhen Guangdong 518055 P. R. China
3. Department of Electrical and Electronic Engineering Southern University of Science and Technology Nanshan District Shenzhen Guangdong 518055 P. R. China
4. Engineering Research Center for Hydrogen Energy Materials and Devices College of Rare Earths (CORE) Jiangxi University of Science and Technology Ganzhou Jiangxi 341000 P. R. China