Cellulose-derived conductive nanofibrous materials for energy storage and tissue engineering applications
Doctoral thesis, 2017
neural cells
supercapacitors
hydrogel inks
carbonization
cellulose
carbon composites
tissue engineering
energy storage
carbon nanofibers
3D printing
electrospinning
Author
Volodymyr Kuzmenko
Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems
Sustainable carbon nanofibers/nanotubes composites from cellulose as electrodes for supercapacitors
Energy,;Vol. 90(2015)p. 1490-1496
Journal article
Solidification of 3D printed nanofibril hydrogels into functional 3D cellulose structures
Advanced Materials Technologies,;Vol. 1(2016)p. 1600096-
Journal article
Ammonium chloride promoted synthesis of carbon nanofibers from electrospun cellulose acetate
Carbon,;Vol. 67(2014)p. 694-703
Journal article
Hierarchical cellulose- derived CNF/CNT composites for electrostatic energy storage
Journal of Micromechanics and Microengineering,;Vol. 26(2016)p. 124001-
Journal article
Capacitive effects of nitrogen doping on cellulose-derived carbon nanofibers
Materials Chemistry and Physics,;Vol. 160(2015)p. 59-65
Journal article
Enhanced growth of neural networks on conductive cellulose-derived nanofibrous scaffolds
Materials Science and Engineering C,;Vol. 58(2016)p. 14-23
Journal article
V. Kuzmenko, N. Wang, M. Haque, O. Naboka, M. Flygare, K. Svensson, P. Gatenholm, J. Liu and P. Enoksson, Highly conductive cellulose-derived carbon nanofibers/graphene composite electrodes for powerful compact supercapacitors.
V. Kuzmenko, E. Karabulut, E. Pernevik, P. Enoksson and P. Gatenholm, Tailor-made conductive inks from cellulose nanofibers for 3D printing of neural guidelines for study of neurodegenerative disorders.
In connection with the first problem, supercapacitors are considered to be devices of choice when high power energy supply is needed. At the moment, the production of carbon electrodes for supercapacitors mostly relies on unsustainable fossil precursors. In the present work, I describe the innovative environmentally friendly fabrication method of freestanding functional carbon nanofibrous (CNF) materials derived from cellulose via consecutive steps of cellulose acetate electrospinning, subsequent deacetylation to cellulose, and carbonization. Moreover, I show how modified CNF-based materials can be effectively used as electrodes in supercapacitors. For example, nitrogen-doped CNF materials have about 2.5 times higher specific capacitance than non-doped CNF materials. And incorporation of highly conductive carbon nanotubes and reduced graphene oxide into the CNF frameworks further improves electrical conductivity and increases the surface area of the produced composite materials, which leads to high specific capacitance values, cyclic stability, and power density of these materials.
In connection with the second problem, I use a relatively new medical approach called tissue engineering that can help to cure neurodegenerative diseases of elderly population via development of healthy replacement neural tissues or in vitro models for drug testing. In this thesis, biocompatible and electrically conductive cellulose-derived nanomaterials are shown as suitable scaffolds for the attachment, proliferation and differentiation of neural cells. Possibility of using inks from nanofibrillated cellulose for 3D printing allows even more effective assembly of designed conductive patterns for cell guidance.
In overall, the positive implementation of the cellulose-derived nanofibrous materials in the above mentioned applications suggest that the synthesis of sustainable and efficient materials based on renewable resources is a very prospective approach. Such materials should play a major role in our future effort to satisfy the increasing demand on functional high-tech products.
Subject Categories
Polymer Chemistry
Materials Chemistry
Biomaterials Science
Nano Technology
Driving Forces
Sustainable development
Areas of Advance
Nanoscience and Nanotechnology (SO 2010-2017, EI 2018-)
Energy
Life Science Engineering (2010-2018)
Materials Science
Infrastructure
Nanofabrication Laboratory
ISBN
978-91-7597-558-0
Doktorsavhandlingar vid Chalmers tekniska högskola. Ny serie: 4239, Technical report MC2-358
Publisher
Chalmers
Kollektorn, MC2, Kemivägen 9, Chalmers.
Opponent: Prof. Stephen J. Eichhorn, College of Engineering, Mathematics and Physical Sciences, University of Exeter, Devon, United Kingdom.