1. International Laboratory for Insulation and Energy Efficiency MaterialsCollege of Materials Science and TechnologyNanjing University of Aeronautics and Astronautics Nanjing 210016 P. R. China
2. School of Materials Science and EngineeringNanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
3. Institute of New Carbon MaterialsTaiyuan University of Technology Taiyuan Shanxi 030024 P. R. China
4. Department of ChemistryUniversity of Washington Seattle WA 98195 USA
5. National Engineering Laboratory for Modern SilkCollege of Textile and Clothing EngineeringSoochow University Suzhou 310018 P. R. China