alexa Advanced Electroactive Materials Based On Lignosulfonates
ISSN: 2161-0398

Journal of Physical Chemistry & Biophysics
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3rd International Conference on Electrochemistry
July 10-11, 2017 Berlin, Germany

Grzegorz Milczarek
Poznan University of Technology, Poland
ScientificTracks Abstracts: J Phys Chem Biophys
DOI: 10.4172/2161-0398-C1-019
Abstract
Lignin is an abundant biopolymer on earth, present in all woods and grasses. In its native form, it is insoluble in any solvent and therefore useless for solution chemistry, in spite of its documented antioxidant properties. On the other hand, chemical derivatives of lignin (technical lignins) are produced in the quantities of millions tons per annum as a by-product in the production of cellulose from wood or other plant materials. Depending on the technology used, technical lignins differ in molecular weight, chemical composition and the structure of chemical moieties that make them soluble in organic solvent or even in water. Of particular interest are lignosulfonates that exhibit both poly-electrolyte and poly-phenol character due to the presence of ionizable and hydrophilic sulfonic moieties and substituted phenol groups responsible for their reducing properties. In this report, we demonstrate that technical lignosulfonates can be used as both reducing and stabilizing agents for cost-effective synthesis of various nanoparticles including noble metal nanoparticles and transition metal hexacyanoferrates that show valuable multifunctional electrochemical properties. The obtained hybrid materials show multiple redox activity due to the presence of lignin-derived quinones. Therefore, such materials can be used as energy storing materials or sensing platforms for electrochemical sensors (Fig. 1). Lignosulfonates and lignosulfonate-stabilized nanoparticles can be also introduced into chemically or electrochemically polymerized conducting polymers e.g. polyaniline, polypyrrole and poly-ethylenedioxythiophene.
Biography

Grzegorz Milczarek received his PhD and DSc degree from Faculty of Chemical Technology at Poznan University of Technology (Poznan, Poland). Currently, he is a Professor at the Poznan University of Technology. He is also a Head of the Division of General and Analytical Chemistry. His research areas include: electrocatalysis, preparation of new materials for energy conversion and storage, preparation of chemically modified electrodes to be used as electrochemical sensors. He has published over 50 peer reviewed publications.

Email: [email protected]

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