Self-assembled Nafion–silica nanoparticles for elevated-high temperature polymer electrolyte membrane fuel cells |
| |
| Institution: | 1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China;2. School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore;1. Axens North America, 650 College Road East, Suite 1200, Princeton, NJ 08540, USA;2. Department of Chemical Engineering and Materials Science, Stevens Institute of Technology, Castle Point on Hudson, Hoboken, NJ 07030, USA;3. Center for Applied Energy Research, University of Kentucky, Lexington, KY 40511, USA;1. Shenzhen Key Laboratory of Advanced Materials, Department of Materials Science and Engineering, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518055, China;2. Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, PR China;3. Shenzhen Key Laboratory of Special Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China;4. Institute of Polymers, Composite and Biomaterials, National Research Council, P.le Fermi, 80055 Portici, NA, Italy;1. Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan;2. Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan;1. School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, PR China;2. College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, PR China;1. Institut Charles Gerhardt Montpellier, UMR CNRS 5253, Agrégats, Interfaces et Matériaux pour l′Energie, Université de Montpellier, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France;2. Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Tarragona 43007, Spain;3. Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy |
| |
| Abstract: | In this paper, a novel Nafion/SiO2 nanocomposite membrane based on the self-assembled Nafion–SiO2 nanoparticles was developed. The average particle size of Nafion–SiO2 nanoparticles prepared by self-assembly process was 2.8 ± 0.5 nm. The self-assembled Nafion–SiO2 nanoparticles significantly enhance the durability of the Nafion/silica nanocomposite membrane as compared to that of conventional Nafion/silica composite and Nafion 212 membranes under wet/dry cyclic tests at 90 °C. With an addition of 5 wt% self-assembled Nafion–SiO2 nanoparticles, the Nafion/SiO2 nanocomposite membrane shows a significantly improved performance stability at cell/humidifying temperatures of 100 °C/60 °C under a current density of 600 mA/cm2, and the degradation rate is 0.12 mV/min, almost 20 times lower than 2.33 mV/min measured on the pristine Nafion 212 membrane under the same conditions. The present results demonstrate the promises of the self-assembled Nafion/SiO2 nanocomposite membrane for elevated-high temperature PEM fuel cells applications. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
