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From Biological Source to Energy Harvesting Device: Surface Protective Ionic Liquid Coatings for Electrical Performance Enhancement of Wood-Based Electronics

Affiliation
Institute of Chemistry, University of Silesia in Katowice, Szkolna 9, 40-006 Katowice, Poland;(G.Z.);(M.Z.A.)
Zharkenova, Gulnur;
ORCID
0000-0002-9431-526X
Affiliation
Institute of Chemistry, University of Silesia in Katowice, Szkolna 9, 40-006 Katowice, Poland;(G.Z.);(M.Z.A.)
Arkan, Emre;
ORCID
0000-0003-1972-0318
Affiliation
Institute of Chemistry, University of Silesia in Katowice, Szkolna 9, 40-006 Katowice, Poland;(G.Z.);(M.Z.A.)
Arkan, Mesude Zeliha;
ORCID
0000-0002-2883-8556
Affiliation
Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50–370 Wrocław, Poland;
Feder-Kubis, Joanna;
Affiliation
Institute of Physics, University of Silesia in Katowice, St 75 Pułku Piechoty 1, 41–500 Chorzów, Poland;
Koperski, Janusz;
Affiliation
Department of Civil Engineering, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan;
Mussabayev, Turlybek;
ORCID
0000-0002-8912-9024
Affiliation
Institute of Chemistry, University of Silesia in Katowice, Szkolna 9, 40-006 Katowice, Poland;(G.Z.);(M.Z.A.)
Chorążewski, Mirosław

This study explores task-specific ionic liquids (TSILs) in smart floor systems, highlighting their strong electrical rectification abilities and previously established wood preservative properties. Two types of TSILs, featuring a “sweet” anion and a terpene-based cation, were used to treat selected wood samples, allowing for a comparison of their physical and electrical performance with untreated and commercially treated counterparts. Drop shape analysis and scanning electron microscopy were employed to evaluate the surface treatment before and after coating. Near-IR was used to confirm the presence of a surface modifier, and thermogravimetric analysis (TGA) was utilized to assess the thermal features of the treated samples. The different surface treatments resulted in varied triboelectric nanogenerator (TENG) parameters, with the molecular structure and size of the side chains being the key determining factors. The best results were achieved with TSILs, with the instantaneous voltage increasing by approximately five times and the highest voltage reaching 300 V under enhanced loading. This work provides fresh insights into the potential application spectrum of TSILs and opens up new avenues for directly utilizing tested ionic compounds in construction systems.

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