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Nanomaterials
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Hierarchical Nanostructured Materials for Multifunctional Applications (Second Edition)
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Hierarchical Nanostructured Materials for Multifunctional Applications (Second Edition)

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanocomposite Materials".

Deadline for manuscript submissions: closed (20 April 2026) | Viewed by 1111

Editor

Prof. Dr. Xusheng Du

E-Mail Website
Guest Editor
Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China
Interests: polymer nanocomposites; nanostructured materials; fiber-reinforced composites; carbon nanomaterials; energy storage and conversion; corrosion; wear
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

It is well known that the performance of materials is highly dependent on their structures. Research on the subject of this relationship is always the focus of material scientists. Due to their special mechanical properties, large specific surface area, excellent electrical/thermal conductive 3D network, and special porous structure, versatile hierarchical nanostructured materials have been designed and applied for various material systems, including polymers, metals, inorganic materials, and their composites. The study of the mechanisms of unique nanostructures on promoting the mechanical, electrical, thermal, and electrochemical properties of materials is essential to acquire new knowledge and pave the way for the development of novel advanced materials. Therefore, investigations in this field are attracting increasing research interest.

The aim of this Special Issue of Nanomaterials is to collate state-of-the-art contributions related to recent advancements in the field of designing and fabricating hierarchical nanostructured materials and their various applications. Topics of interest include (but are not limited to) structure engineering materials, surface-protective materials, functional materials for thermal management, electromagnetic shielding, supercapacitors, rechargeable batteries, and sensors, among others.

Prof. Dr. Xusheng Du
Guest Editor

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-anonymized peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

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Keywords

  • polymer nanocomposites
  • carbon nanomaterials
  • fiber-reinforced composites
  • aerogel
  • hierarchical nanostructure
  • thermal conductivity
  • supercapacitors
  • corrosion
  • wear
  • conductive polymer

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Published Papers (1 paper)

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Research

17 pages, 4074 KB  
Article
Synergistically Enhancing Capacitive Performance of Ti3C2Tx MXene via Building Hierarchical Structure of TiO2 Nanowire/MXene Composites and Utilizing Iron-Ion-Based Redox-Active Electrolytes
by Xiaohan Wang and Xusheng Du
Nanomaterials 2026, 16(11), 671; https://doi.org/10.3390/nano16110671 - 27 May 2026
Viewed by 581
Abstract
In this work, a strategy for synergistic regulation of the Ti3C2Tx surface structure and redox activity of the electrolyte has been proposed. The surface modification of MXene was achieved via KOH treatment. Meanwhile, to cooperate with the surface-modified [...] Read more.
In this work, a strategy for synergistic regulation of the Ti3C2Tx surface structure and redox activity of the electrolyte has been proposed. The surface modification of MXene was achieved via KOH treatment. Meanwhile, to cooperate with the surface-modified MXene electrode materials, Fe3+/Fe2+ was introduced into its common H2SO4 electrolyte to operate as a redox-active electrolyte for the first time. The results indicate that alkali treatment not only effectively reduces the amount of fluorine-terminal groups on the MXene surface but also forms in situ TiO2 nanowires on its surface, thereby forming a unique hierarchical structure for facilitating the electrochemical reaction. Further utilization of the Fe2+/Fe3+ redox-active electrolyte introduced additional pseudocapacitive reactions at the electrode/electrolyte interface, significantly enhancing the capacitive performance of the system. This synergistic effect of both the hierarchical 1D TiO2/MXene composite electrode materials and the redox-active electrolyte resulted in a substantial increase in specific capacitance from 78.17 F g−1 to 655.54 F g−1 at a current density of 10 Ag−1. The reaction kinetics of the electrochemical systems were studied, along with their energy storage mechanism. It is revealed that there is a transition of the energy storage mechanism from being dominated almost solely by diffusion control to collaborative diffusion and surface reactions in the synergistic electrode/electrolyte system, and the corresponding equivalent circuit has evolved from the single-interface model to a dual-interface model. This work has demonstrated that the proposed synergistic strategy can effectively enhance the capacitive performance of the MXene energy storage system and can be applied to other electrochemical systems. Full article
(This article belongs to the Special Issue Hierarchical Nanostructured Materials for Multifunctional Applications (Second Edition))
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