Crosslinking/Spinning Strategies of Nanocellulose Enhances the Performances for Self-Powered Wearable Sensors

Nano Energy, Год журнала: 2025, Номер unknown, С. 110649 - 110649

Опубликована: Янв. 1, 2025

Язык: Английский

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Highly Anion Conductive Cellulose Realized by One-Step, Facile, and Effective Introduction of Ammonium and Phenyl Alkyl Groups

ACS Materials Au, Год журнала: 2025, Номер unknown

Опубликована: Фев. 12, 2025

Anion exchange membranes (AEMs) have attracted attention due to their applications in water electrolyzers, metal–air batteries, and redox flow batteries. However, developing AEMs with cost-effective environmentally friendly methods is highly challenging. Herein, we demonstrate that a novel, one-step molecular modification of cellulose (powder, degreasing cotton, natural cotton) provides very effectively. By controlling the feed molar ratio reactants, (QC-1) having wide varieties ion capacity (0.63–1.54 mmol g–1) degree substitution (0.52–1.39) were successfully prepared. QC-1 achieved one highest OH– conductivity values (∼42.6 mS cm–1) among reported cellulose-based AEMs. showed good alkaline stability moderate mechanical properties, which applicable solid-state zinc–air battery (ZAB). The result would open new era AEM development, future, green will further enhance sustainability clean energy conversion storage devices.

Язык: Английский

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Amphoteric Metal Ion‐Coordinated Chitosan Membranes for Efficient Hydroxide Ion Transport

Chemistry - An Asian Journal, Год журнала: 2025, Номер unknown

Опубликована: Апрель 30, 2025

Hydroxide exchange membranes (HEMs) have attracted extensive attention in energy-related fields, such as fuel cells and water electrolysis, primarily due to their suitability for alkaline environments. However, the practical application of is hindered significantly by limited conductivity. In this study, a series amphoteric metal ion-coordinated chitosan (CTS-AM) with enhanced hydroxide ion conductivity are reported. The CTS-AM prepared using simple soaking-drying method, exhibiting excellent mechanical strength thermal stability strong coordination bonds between ions chains. To best our knowledge, Zn2+ coordinated membrane achieved highest-ever reported 82.0 ± 5.4 mS cm-1 at 25 °C 100% RH, value increasing 301.0 6.7 operating temperature (80 °C) RH. Through combined structural analysis theoretical calculations, we propose that formation nanochannels lowered barrier electron transfer responsible high conductivities membranes. This study presents viable approach design fabrication high-performance HEMs energy storage devices other applications.

Язык: Английский

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Mixed dimensional assembly of biodegradable and antifouling wood-based covalent organic framework composite membranes for rapid and efficient dye/salt separation

Journal of Hazardous Materials, Год журнала: 2024, Номер 480, С. 136012 - 136012

Опубликована: Сен. 30, 2024

Язык: Английский

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Facile construction of polyacrylate membranes with pendent zwitterionic side-chains for high proton conduction

Polymer, Год журнала: 2024, Номер unknown, С. 127681 - 127681

Опубликована: Окт. 1, 2024

Язык: Английский

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