2017-10-13

[MRS Symposium] SM07 - Functional (Bio)polymers in Energy and Environment Applications



Time and time again, "multidisciplinary" research is touted as essential to innovation. That is why, from April 2-6, 2018, researchers working in seemingly unrelated fields will gather in Phoenix, Arizona, to promote, share and discuss issues and developments across disciplines.

The 2018 MRS Spring Meeting & Exhibit is the key forum to present research to an interdisciplinary and international audience. It provides a window on the future of materials science, and offers an opportunity for researchers—from students and postdoctoral fellows, to Nobel and Kavli Prize Laureates—to exchange technical information and network with colleagues.

Call for Papers

Abstract submission deadline is October 31, 2017.

Symposium SM07—Functional (Bio)polymers in Energy and Environment Applications

The development of inexpensive, benign and efficient sustainable materials, which can replace our dependence on the fossil reserves, is imperative. This approach can take many forms, either by improving the lifetime of a material, making it lighter, easier and more economical to transport, or by creating novel materials that allow for new functions. In this context, the exploitation of functional materials based on renewable and sustainable (bio)polymers and bioplastics (i.e., biological polymers and bio-derived synthetic polymers) such as poly(ionic liquid)s (PILs), polysaccharides, fibrous proteins, etc represents an approach that can satisfy these stringent requirements.

Improved chemical and characterization methods have promoted the growing interest in (biopolymers as it enabled tuning their surface properties and the observation of their intricate nanostructures. Functional biopolymers and bioplastics have found their way in applications in catalysis, sensing, energy storage and energy generation. However, the understanding of the coupling of the micro-, meso-, and macroscopic-length scales is far from being understood, particularly in combination with inorganic nanomaterials. This symposium will cover the range of applications of biopolymers and bioplastics in energy and environment applications.

The topics of the symposium include interdisciplinary areas merging chemistry, biology, polymer science and materials science. The invited abstracts will provide the required bridges to connect these areas with an emphasis on their characterization methods and applications. These, in turn, will help to initiate discussions towards the implementation of the various functional (bio)polymers in different areas and the cross-fertilization of the characterization methods that are used.

Topics will include:

  • Thermal insulation 
  • Ionic and electronic conductors 
  • Environmental remediation (heavy metal sorption, organic dye removal, etc.) 
  • Life-cycle analysis 
  • Sensing 
  • Catalysis 
  • Energy generation and storage (supercapacitors, battery, triboelectricity, piezoelectricity, biofuel cells, etc) 
  • Advanced characterization of (bio)polymers 
  • Functionalization of biopolymers 
  • Functional carbons from (bio)polymers 

    Invited Speakers: 

    • Laurent Billon (Université de Pau et des Pays de l'Adour, France)
    • Niklas Hedin (Stockholm University, Sweden)
    • Olli Ikkala (Aalto University, Finland)
    • Timothy Long (Virginia Polytechnic Institute and State University, USA)
    • Isabel Marucho (Universidade Nova de Lisboa, Portugal)
    • Hideharu Mori (Yamagata University, Japan)
    • Meital Reches (Hebrew University of Jerusalem, Israel)
    • Daniel Taton (Université de Bordeaux and CNRS, France)
    • John Texter (Eastern Michigan University, USA)
    • Magdalena Titirici (Queen Mary University of London, England)
    • Silvia Vignoli (University of Cambridge, England)
    • Feng Yan (Soochow University, China)

    Symposium Organizers

    German Salazar-Alvarez
    Stockholm University
    Materials and Environmental Chemistry
    Sweden
    +468163942, german@mmk.su.se

    Marie-Helene Delville
    Institut de Chimie de la Matière Condensée de Bordeaux
    Chemistry of Nanomaterials
    France

    Bernd Wicklein
    Materials Science Institute of Madrid-CSIC
    Spain
    34-91-3349000, bernd@icmm.csic.es

    Jiayin Yuan
    Clarkson University
    Department of Chemistry and Biomolecular Science and Center for Advanced Materials Processing
    USA
    315-268-4247, jyuan@clarkson.edu

    Keywords for Abstract Submission

    characterization of biopolymers, Energy generation and storage, Environmental remediation, functionalization of biopolymers, Ionic and electronic conductors, sensing and catalysis, Thermal insulation

    2017-10-09

    Effects of Different Manufacturing Processes on TEMPO-oxidized CNF Performance as binder for Flexible Lithium-ion Batteries

    Huiran Lu, Valentina Guccini, Hyeyun Kim, German Salazar-Alvarez, Göran Lindbergh, and Ann Cornell*

    ACS Appl. Mater. Interfaces (2017)
    DOI: 10.1021/acsami.7b10307

    Abstract:
    Carboxylated cellulose nanofibers (CNF) prepared using the TEMPO-route are good binders of electrode components in flexible lithium-ion batteries (LIB). However, the different parameters employed for the defibrillation of CNF, such as charge density and degree of homogenization, affect its properties when used as binder. This work presents a systematic study of CNF prepared with different surface charge densities and various degrees of homogenization and their performance as binder for flexible LiFePO4 electrodes. The results show that the CNF with high charge density had shorter fiber lengths compared with the CNF with low charge density, as observed with atomic force microscope (AFM). Also, CNF processed with a large number of passes in the homogenizer showed a better fiber dispersibility, as observed with rheological measurements. The electrodes fabricated with highly charged CNF exhibited the best mechanical and electrochemical properties. The CNF at the highest charge density (1550 µmol g-1) and lowest degree of homogenization (3+3 passes in the homogenizer) achieved the overall best performance, including a high Young’s modulus of approximately 311 MPa and a good rate capability with a stable specific capacity of 116 mAh g-1 even up to 1C. This work allows a better understanding of the influence of the processing parameters of CNF on their performance as binder for flexible electrodes. The results can also contribute to the understanding of the optimal processing parameters of CNF to fabricate other materials, e.g., membranes or separators.