Crosslinking network design of cellulose-based conductive gels: Mechanism, strategies, and characterization

IF 33.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Progress in Materials Science Pub Date : 2025-03-25 DOI:10.1016/j.pmatsci.2025.101476

Haocheng Fu , Bin Wang , Jinpeng Li , Pengfei Li , Chengliang Duan , Feiyu Tang , Hao Jiang , Jun Xu , Jinsong Zeng , Wenhua Gao , Daxian Cao , Kefu Chen

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Abstract

Cellulose-based conductive gels represent a unique platform for integrating intelligent electronic devices seamlessly into daily life due to their excellent flexibility, adjustable three-dimensional (3D) structure, and sustainability. Mechanical strength and conductivity, as two key parameters, play significant roles in this process. Nevertheless, transferring excellent mechanical properties and conductivity to 3D gels simultaneously poses numerous challenges due to their inherent conflict in typical cases. The advancements in functionalizing crosslinking networks at the single cellulosic material level and within the constructed cellulose-based 3D matrix have fundamentally altered their utility. This review provides a systematic and in-depth understanding of designing advanced crosslinking networks in developing cellulose-based conductive gels with superior mechanical strength and conductivity. Here, we introduce the advantages of cellulose in designing conductive gels and the component effect of the gels on mechanical and conductive properties. Then, we systematically summarize the importance and design methods of crosslinking network engineering in balancing these features theoretically. Furthermore, fabrication strategies for achieving superior mechanical strength and enhanced conductivity through structural optimization of cellulose-derived crosslinking networks are investigated, with particular emphasis on interfacial engineering and functional integration mechanisms. We further review the compatibility of crosslinking networks and other key properties (self-healing and low-temperature tolerance). We also discuss advanced analysis methods of structure-performance relationship for developing novel cellulose-based conductive gels with superior physicochemical characteristics. Finally, we introduce potential applications and highlight key technologies to broaden the application prospects of cellulose-based conductive gels for smart wearable devices.

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纤维素基导电凝胶的交联网络设计：机制、策略和表征

纤维素基导电凝胶由于其出色的灵活性，可调节的三维（3D）结构和可持续性，代表了将智能电子设备无缝集成到日常生活中的独特平台。机械强度和电导率作为两个关键参数在这一过程中起着重要的作用。然而，将优异的机械性能和导电性同时转移到3D凝胶中，由于它们在典型情况下的固有冲突，带来了许多挑战。在单个纤维素材料水平和构建的基于纤维素的3D矩阵中功能化交联网络的进步已经从根本上改变了它们的用途。本文综述了设计先进的交联网络以开发具有优异机械强度和导电性的纤维素基导电凝胶的系统和深入的理解。本文介绍了纤维素在导电凝胶设计中的优势，以及纤维素对导电凝胶力学性能和导电性能的影响。然后，从理论上系统地总结了交联网络工程在平衡这些特征方面的重要性和设计方法。此外，研究人员还研究了通过优化纤维素衍生交联网络的结构来获得优异机械强度和增强导电性的制造策略，特别强调了界面工程和功能集成机制。我们进一步回顾了交联网络的兼容性和其他关键性能（自愈和耐低温）。讨论了开发具有优异理化特性的新型纤维素基导电凝胶的结构-性能关系分析方法。最后，我们介绍了纤维素基导电凝胶的潜在应用，并重点介绍了关键技术，拓宽了纤维素基导电凝胶在智能可穿戴设备中的应用前景。

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来源期刊

Progress in Materials Science 工程技术-材料科学：综合

CiteScore

59.60

自引率

0.80%

发文量

101

审稿时长

11.4 months

期刊介绍： Progress in Materials Science is a journal that publishes authoritative and critical reviews of recent advances in the science of materials. The focus of the journal is on the fundamental aspects of materials science, particularly those concerning microstructure and nanostructure and their relationship to properties. Emphasis is also placed on the thermodynamics, kinetics, mechanisms, and modeling of processes within materials, as well as the understanding of material properties in engineering and other applications. The journal welcomes reviews from authors who are active leaders in the field of materials science and have a strong scientific track record. Materials of interest include metallic, ceramic, polymeric, biological, medical, and composite materials in all forms. Manuscripts submitted to Progress in Materials Science are generally longer than those found in other research journals. While the focus is on invited reviews, interested authors may submit a proposal for consideration. Non-invited manuscripts are required to be preceded by the submission of a proposal. Authors publishing in Progress in Materials Science have the option to publish their research via subscription or open access. Open access publication requires the author or research funder to meet a publication fee (APC). Abstracting and indexing services for Progress in Materials Science include Current Contents, Science Citation Index Expanded, Materials Science Citation Index, Chemical Abstracts, Engineering Index, INSPEC, and Scopus.