Synthesis, electrochemical and anti-microbial study of 2,5-diamino benzoquinones

Asha, A.; Suma, S.

doi:10.1016/j.jics.2021.100316

Cited by 3 publications

(5 citation statements)

References 38 publications

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“…While the syntheses of quinones 2 and 5 have been previously described, their electrochemical properties and battery performance have not been evaluated until now . On the other hand, quinones 1 , 3 , and 4 are being reported for the first time, along with their characterization data provided in the Supporting Information ( 1 H NMR, 13 C NMR, HRMS, and IR) (Figures S1–S20).…”

Section: Resultsmentioning

confidence: 99%

“…This modified BBQ maintained 60% of its capacity over 20 charge–discharge cycles . This finding indicates that modifying quinone structures with either electron-donating or electron-withdrawing groups significantly impacts not only the redox potentials but also the stability of the cathode material during battery cycling. , Consequently, we explored the introduction of various electron-donating amines to reduce solubility by increasing the molecular mass. This approach aimed to replicate the improved capacity retention observed with methoxy groups.…”

Section: Introductionmentioning

confidence: 91%

“…Here, we present the synthesis of active OCMs in one-step, carried out in ethanol or water, that can be purified by simple filtration, which adheres to green chemistry principles . Furthermore, the reaction of the quinones and corresponding amines was found to be regioselective for the 2,5-disubstituion pattern, which is mainly due to steric interactions, as others have suggested. ,, …”

Section: Introductionmentioning

confidence: 96%

“…23 Furthermore, the reaction of the quinones and corresponding amines was found to be regioselective for the 2,5-disubstituion pattern, which is mainly due to steric interactions, as others have suggested. 10,24,25 In coin-cell LIBs, examples of specific quinones, such as NDQ, BBQ, and TTQ, demonstrated rapid capacity degradation, with a loss exceeding 50% within the initial 20 cycles. This phenomenon was attributed to the solubility of these materials in the electrolytes.…”

Section: ■ Introductionmentioning

confidence: 99%

“…17 This finding indicates that modifying quinone structures with either electron-donating or electron-withdrawing groups significantly impacts not only the redox potentials but also the stability of the cathode material during battery cycling. 17,24 Consequently, we explored the introduction of various electron-donating amines to reduce solubility by increasing the molecular mass.…”

Section: ■ Introductionmentioning

confidence: 99%

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Diamino-Substituted Quinones as Cathodes for Lithium-Ion Batteries

Hiltermann,

Sarkar,

Thangadurai

et al. 2024

ACS Appl. Mater. Interfaces

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This study introduces a sustainable approach to designing organic cathode materials (OCMs) for lithium-ion batteries as a potential replacement for traditional metal-based electrodes. Utilizing green synthetic methodologies, we synthesized and characterized five distinct quinone derivatives and investigated their electrochemical attributes within Li-ion battery architectures. Notably, the observed specific capacities were lower than the theoretical predictions, suggesting limitations in achieving efficient redox reactions in a coin-cell configuration. Among the quinone derivatives studied, one variant derived from natural vanillin showed superior cycle stability, maintaining 58% capacity retention over 95 charge−discharge cycles, and achieving a Coulombic efficiency of 90%. Importantly, we discovered that the commonly used Super-P conductive carbon did not yield any measurable battery performance; instead, these quinones necessitated the incorporation of graphene nanoplatelets as the conductive matrix. Through a facile one-step synthesis in ethanol or water, we have demonstrated a viable synthetic route for producing OCMs, albeit with moderate performances, which have attempted to address common concerns of high solubility and poor redox reactivity of previous OCMs, thereby offering a sustainable pathway for the development of organic-based energy storage devices.

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Section: Resultsmentioning

confidence: 99%