Green and Sustainable Hydroxyquinone Molecule Electrodes Prepared for Efficient Energy Storage

Li, Shanshan; Zhou, Yi; Hu, Zhongai; Meng, Xiaoyi; Shi, Haixiong; Zhang, Xinghui; Hou, Gangqiang; Zhu, Jun; Wang, Jixia

doi:10.1021/acsaem.3c00192

Cited by 4 publications

(1 citation statement)

References 65 publications

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“…Conjugated polymers emerged as a fascinating family of materials which have revolutionized various fields of science and technology − because of their exceptional optical and electronic properties bestowed with their versatile processability, thus allowing for their use across a myriad of applications, notably, optoelectronic devices and energy storage and conversion. − These applications encompass organic photodetectors and photovoltaics (OPDs and OPVs), , light-emitting diodes (OLEDs), and field-effect transistors (OFETs). , …”

Section: Introductionmentioning

confidence: 99%

Efficient Iodine Uptake of Ultra Thermally Stable Conjugated Copolymers Bearing Biaceanthrylenyl Moieties and Contorted Aromatic Units Using a [3 + 2] Palladium-Catalyzed Cyclopolymerization Reaction

Baig,

Shetty,

Bargakshatriya

et al. 2023

ACS Omega

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A novel series of copolymers made from alternating aromatic surrogates with contorted and spiro compounds, denoted as BCP1–3, was successfully synthesized employing a palladium-catalyzed one-pot [3 + 2] cyclopentannulation reaction. The resulting copolymers BCP1–3, which were isolated in high yields, exhibited weight-average molecular weights (M w) ranging from 11.0 to 61.5 kg mol–1 (kDa) and polydispersity index (M w/M n) values in the range of 1.7 and 2.0, which suggest a narrow molecular weight distribution, thus indicating the formation of uniform copolymer chains. Investigation of the thermal properties of BCP1–3 by thermogravimetric analysis disclosed outstanding stability with 10% weight loss temperature values reaching 800 °C. Iodine adsorption tests revealed remarkable results, particularly for BCP2, which demonstrated a strong affinity toward iodine reaching an uptake of 2900 mg g–1. Additionally, recyclability tests showcased the effective regeneration of BCP2 after several successive iodine adsorption–desorption cycles.

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Section: Introductionmentioning

confidence: 99%

Efficient Iodine Uptake of Ultra Thermally Stable Conjugated Copolymers Bearing Biaceanthrylenyl Moieties and Contorted Aromatic Units Using a [3 + 2] Palladium-Catalyzed Cyclopolymerization Reaction

Baig,

Shetty,

Bargakshatriya

et al. 2023

ACS Omega

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Redox‐Active Organic Electrode Materials for Supercapacitors

Ding,

Xiao,

et al. 2023

Batteries & Supercaps

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Due to their prominent power density, supercapacitors carve out a niche among all the energy storage systems. However, it is also well known that the energy density of supercapacitors takes no advantage over lithium‐ion batteries, the current star energy storage device. Therefore, substantial efforts have been paid to improving the energy density of supercapacitors not at the expense of its power density. To develop electrode with high capacitance is a direct and efficient way to increase the energy storage capability of supercapacitors. Organics whose molecular structure can be diversely designed to achieve high pseudocapacitance arising from redox active units in their backbone are good candidates as electrode materials for supercapacitors. Herein, this review summarizes recent progress of redox‐active organic electrode materials for supercapacitors and their pseudocapacitive energy storge mechanisms based on different organic functional groups. From the aspects of their preparation approaches, molecular design and the resultant electrochemical performances, the focus is to probe the relationship between the energy storage mechanisms and the molecular structure of redox‐active units and provide some insights for the further development of organic supercapacitor electrodes.

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Asymmetric Supercapacitors based on 1,10‐phenanthroline‐5,6‐dione Molecular Electrodes Paired with MXene

Wei,

Meng,

Xiao

et al. 2023

ChemSusChem

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An efficient approach to increase the energy density of supercapacitors is to prepare electrode materials with larger specific capacitance and increase the potential difference between the positive and negative electrodes in the device. Herein, an organic molecular electrode (OME) is prepared by anchoring 1,10‐phenanthroline‐5,6‐dione (PD), which possesses two pyridine rings and an electron‐deficient conjugated system, onto reduced graphene oxide (rGO). Because of the electron‐deficient conjugated structure of PD molecule, PD/rGOs exhibit a more positive redox peak potential along with the advantages of high capacitance‐controlled behaviour and fast reaction kinetics. Additionally, the small energy gap between the lowest unoccupied molecular orbital (LUMO) and highest occupied molecular orbital (HOMO) leads to increased conductivity in PD/rGO. To assemble the asymmetric supercapacitor (ASC), a two‐dimensional metal carbide, as known as MXene, with a chemical composition of Ti3C2Tx is selected as the negative electrode due to its exceptional performance, and PD/rGO‐0.5 is employed as the positive electrode. Consequently, the working voltage is expanded up to 1.8 V. Through further electrochemical measurements, the assembled ASC (PD/rGO‐0.5//Ti3C2Tx) achieves a remarkable energy density of 36.8 Wh kg‐1. Remarkably, connecting two ASCs in series can power 73 LEDs, showcasing its promising potential for energy storage applications.

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Green and Sustainable Hydroxyquinone Molecule Electrodes Prepared for Efficient Energy Storage

Cited by 4 publications

References 65 publications

Efficient Iodine Uptake of Ultra Thermally Stable Conjugated Copolymers Bearing Biaceanthrylenyl Moieties and Contorted Aromatic Units Using a [3 + 2] Palladium-Catalyzed Cyclopolymerization Reaction

Efficient Iodine Uptake of Ultra Thermally Stable Conjugated Copolymers Bearing Biaceanthrylenyl Moieties and Contorted Aromatic Units Using a [3 + 2] Palladium-Catalyzed Cyclopolymerization Reaction

Redox‐Active Organic Electrode Materials for Supercapacitors

Asymmetric Supercapacitors based on 1,10‐phenanthroline‐5,6‐dione Molecular Electrodes Paired with MXene

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