Solid-Phase Synthesis of Poly(imino anthraquinone)s for Low-Cost and High-Performance Bipolar Organic Cathode Materials DOI
Tingting Yu, Xiaotang Gan, Qi Wang

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 29, 2024

Organic polymer cathode materials have emerged as promising candidates for constructing sustainable lithium and post-lithium batteries. However, it remains a significant challenge to synthesize electroactive polymers with the desired energy density cycling stability in cost-effective manner. Herein, we present simple yet effective solid-phase method synthesizing series of bipolar quinone-amine polymers, specifically, poly(imino anthraquinone)s (PIAQs). The dehydration polycondensation reaction, occurring at 350 °C between amino hydroxy groups low-cost diaminoanthraquinone dihydroxyanthraquinone monomers, yields four PIAQ samples identical repeating units but varied connection patterns. As batteries employing ester-type electrolytes, they exhibit comparable charge–discharge curves densities within 1.5–4.3 V varying stabilities proportional their polymerization degrees. For example, despite its lowest-cost PIAQ-44 demonstrates one most outstanding electrochemical performances among materials, boasting reversible capacity 248 mA h g–1, an average discharge voltage 2.53 V, high (75% retention after 2000 cycles). Moreover, slight differences performance PIAQs, pertaining redox, irreversible deprotonation, fade, been thoroughly elucidated provide constructive insights into polymers.

Язык: Английский

A donor-acceptor conjugated bipolar polymer with multielectron redox sites for long-cycle-life and high-rate aqueous zinc dual-ion batteries DOI

Lian‐Wei Luo,

Shining Zhu,

Wenyan Ma

и другие.

Journal of Energy Chemistry, Год журнала: 2024, Номер 102, С. 144 - 150

Опубликована: Ноя. 6, 2024

Язык: Английский

Процитировано

3
High-Performance Flexible Symmetric Supercapacitor Device Based on Nitroaniline-Functionalized Benzoquinone DOI

Sudhir D. Jagadale,

Sidhanath V. Bhosale

ACS Applied Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 23, 2024

A simple approach to design the molecular architecture based on modified benzoquinone and its flexible supercapacitor device is demonstrated. In present work, two electron-withdrawing subunits such as 2-nitroaniline (NA) 3,5-dinitro aniline (DNA) are utilized functionalize (BQ) core. As-prepared electrode materials BQ-NA BQ-DNA graphite foil (GF) directly employed fabricate a three-electrode (SC) in 1 M H2SO4 electrolyte. At 0.5 g–1 current density, BQ-DNA/GF electrode-based SC can deliver higher specific capacitance (Csp) of 341.13 F compared BQ-NA/GF 322.47 g–1. This could be ascribed effect four –NO2 groups BQ-DNA. Moreover, two-electrode BQ-DNA/GF//BQ-DNA/GF symmetric (SSC) were created using GF surface. The BQ-DNA/GF-based FSSC at 0° bending angle exhibits noticeable Csp with 81.66% retention after 5000 cycles mA cm–2 density. highest energy density 12.81 μW h 1.36 mW power was achieved for FSSC. cell configuration 180° also retains excellent Csp. work provides way high-performance storage organic compounds electronics wearable architectures.

Язык: Английский

Процитировано

3
Quinone-Enriched Polymer with a Large π-Conjugated Structure for High-Energy Supercapacitors: Synthesis and Electrochemical Assessment DOI
Yi Zhou,

Qiaoqiao Wei,

Liangzhikun Xiao

и другие.

Energy & Fuels, Год журнала: 2024, Номер 38(8), С. 7399 - 7411

Опубликована: Апрель 10, 2024

Organic synthesis strategies can be used to form particular functional groups and skeleton structures of electrochemically active organic molecules with a reversible faradaic charge transfer suitable for high-efficiency energy storage. In this work, an molecular electrode (OME) is assembled by unique combination quinone-enriched polymers (PDAQs) reduced graphene oxides (rGOs) supercapacitors. Using 1,3,5-benzenetricarboxaldehyde (BA) as bridge, 2,6-diaminoanthraquinone (DAQ) connected in imine linkage create novel polymer (PDAQ) structure. Excellent electrochemical characteristics are achieved result extensive π-conjugation system high density C═O the structural unit PDAQ, while robust π–π interactions between PDAQ rGO improve cycling stability. PDAQ/rGO-0.3 exhibits impressive specific capacitance up 622 F g–1 at 5 mV s–1 exceptional retentions (87.8% 100 s–1) long cycle life. To validate practical storage capability PDAQ/rGO-0.3, asymmetric supercapacitor (ASC) was constructed utilizing 2,5-dihydroxy-1,4-benzoquinone-functionalized (DBQ/rGO) positive electrode. The ASC (PDAQ/rGO-0.3//DBQ/rGO) remarkable 32.97 Wh kg–1 power 605.57 W maintains 88% after undergoing 10 000 cycles. two ASCs were arranged tandem configuration, effectively powering 63 light-emitting diodes (LEDs), demonstrating their prospective potential applications.

Язык: Английский

Процитировано

2
A review on the role of hydrogen bonds in organic electrode materials DOI
Yonghui Wang, Yuxuan Zhao,

Xinlei Xu

и другие.

Batteries & Supercaps, Год журнала: 2024, Номер 7(12)

Опубликована: Авг. 16, 2024

Abstract Organic electrode materials (OEMs) hold significant development potential in the field of batteries and are regarded as excellent complementary to resource‐limited inorganic materials, which have recently been subject extensive research. As research deepens, an increasing number scholars recognize influence weak bond interactions on properties OEMs. Generally, more pronounced effects organic compared ones. Among various interactions, hydrogen bonds particularly noteworthy, having proven play crucial roles adjusting charge distribution, stabilizing crystal structures, inhibiting cyclic dissolution. The studies OEMs therefore paramount importance for guiding their future development. In this review, we primarily summarize progress science within discuss directions prospects area. Hoping provide valuable references advancement

Язык: Английский

Процитировано

1
A High Capacity p‐Type Organic Cathode Material for Aqueous Zinc Batteries DOI
Yan Zhang, Min Li, Zongyang Li

и другие.

Angewandte Chemie, Год журнала: 2024, Номер 136(48)

Опубликована: Сен. 3, 2024

Abstract P‐type organic cathode materials typically exhibit high redox potentials and fast kinetics, presenting broad application prospects in aqueous zinc batteries (AZBs). However, most of the reported p‐type limited capacity (<100 mAh g −1 ), which is attributable to low mass content ratio oxidation‐reduction active functional groups these materials. Herein, we report a high‐capacity material, 5,12‐dihydro‐5,6,11,12‐tetraazatetracene (DHTAT), for batteries. Both experiments calculation indicate charge storage DHTAT mainly involves adsorption/desorption ClO 4 − on −NH− group. Benefitting from group DHATA molecule, electrode demonstrates remarkable 224 at current density 50 mA with stable voltage 1.12 V. Notably, after 5000 cycles 5 A , retains 73 % its initial capacity, showing promising cycling stability. In addition, also has good low‐temperature performance can stably cycle −40 °C 4000 1 making it competitive candidates material

Язык: Английский

Процитировано

1
Solid-Phase Synthesis of Poly(imino anthraquinone)s for Low-Cost and High-Performance Bipolar Organic Cathode Materials DOI
Tingting Yu, Xiaotang Gan, Qi Wang

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 29, 2024

Organic polymer cathode materials have emerged as promising candidates for constructing sustainable lithium and post-lithium batteries. However, it remains a significant challenge to synthesize electroactive polymers with the desired energy density cycling stability in cost-effective manner. Herein, we present simple yet effective solid-phase method synthesizing series of bipolar quinone-amine polymers, specifically, poly(imino anthraquinone)s (PIAQs). The dehydration polycondensation reaction, occurring at 350 °C between amino hydroxy groups low-cost diaminoanthraquinone dihydroxyanthraquinone monomers, yields four PIAQ samples identical repeating units but varied connection patterns. As batteries employing ester-type electrolytes, they exhibit comparable charge–discharge curves densities within 1.5–4.3 V varying stabilities proportional their polymerization degrees. For example, despite its lowest-cost PIAQ-44 demonstrates one most outstanding electrochemical performances among materials, boasting reversible capacity 248 mA h g–1, an average discharge voltage 2.53 V, high (75% retention after 2000 cycles). Moreover, slight differences performance PIAQs, pertaining redox, irreversible deprotonation, fade, been thoroughly elucidated provide constructive insights into polymers.

Язык: Английский

Процитировано

1