Work

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

Year: 2025

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide 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 and environmentally friendly methods is highly challenging. Herein, we demonstrate that a novel, one-step molecular modification of cellulose (powder, degreasing cotton, and natural cotton) provides AEMs very effectively. By controlling the feed molar ratio of reactants, cellulose AEMs ( QC-1 ) having wide varieties of ion exchange capacity (0.63–1.54 mmol g –1 ) and degree of substitution (0.52–1.39) were successfully prepared. QC-1 achieved one of the highest OH – conductivity values (∼42.6 mS cm –1 ) among reported cellulose-based AEMs. QC-1 showed good alkaline stability and moderate mechanical properties, which were applicable to a solid-state zinc–air battery (ZAB). The result would open a new era of AEM development, and in the future, green AEMs will further enhance the sustainability of clean energy conversion and storage devices.

Source: ACS Materials Au

DOI: 10.1021/acsmaterialsau.5c00005

Author: Junpei Miyake

Institution: University of Yamanashi

Language: English

Topic: Fuel Cells and Related Materials

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $3,500