Nanostructured poly(hydroquinonyl-benzoquinonyl sulfide)/multiwalled carbon nanotube composite cathodes : improved synthesis and performance for rechargeable Li and Mg organic batteries

Narayan, Rekha (avtor), Blagojević, Aleksandar (avtor), Mali, Gregor (avtor), Vélez Santa, John Fredy (avtor), Bitenc, Jan (avtor), Randon-Vitanova, Anna (avtor), Dominko, Robert (avtor)

Cost-effective, simple, and easily reproducible synthesis methods of polymers are of profound significance when it comes to extracting high battery performance metrics from polymeric redox-active materials. This work reports a procedure for the solvothermal synthesis of a poly(hydroquinonyl-benzoquinonyl sulfide) (PHBQS) polymer and the development of its nanostructured composites with multiwalled carbon nanotubes (MWCNTs). Polymers are tested as high-performance cathode materials for Li$^+$ and Mg$^{2+}$ batteries. In configurations, compared to neat PHBQS, the PHBQS@5%MWCNT cathode exhibits superior electrochemical performance with high active material utilization owing to improved ion/electron transport pathways. Galvanostatic characterization of the PHBQS@5%MWCNT cathode in lithium batteries exhibited peak capacity up to 358 mAh g$^{−1}$ at a current density of 50 mA g$^{−1}$ (C/8) and excellent rate performance with a discharge capacity of 236 mAh g$^{−1}$ maintained even at high current density of 10C. The galvanostatic characterization in Mg batteries reveals more sluggish kinetics with a stable capacity of 200 mAh g$^{−1}$ at 50 mA g$^{−1}$.

• Jezik: Angleški jezik
• Ključne besede: batteries, carbon nanotubes, electrical conductivity, electrodes, polymers
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FKKT - Fakulteta za kemijo in kemijsko tehnologijo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2022
• Št. strani: Str. 6378−6388
• Številčenje: Vol. 34, iss. 14
• PID: 20.500.12556/RUL-142004
• UDK: 620.1/.2
• ISSN pri članku: 0897-4756
• DOI: 10.1021/acs.chemmater.2c00862
• COBISS.SI-ID: 124763139
• Datum objave v RUL: 14.10.2022

Gradivo je del revije

• Naslov: Chemistry of materials
• Skrajšan naslov: Chem. mater.
• Založnik: American Chemical Society
• ISSN: 0897-4756
• COBISS.SI-ID: 6557189

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: materiali, polimeri, sinteze, magnezij, baterije