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Nanomaterials
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Advances in Nanostructured Electrode Materials: Design and Applications (2nd Edition)
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Advances in Nanostructured Electrode Materials: Design and Applications (2nd Edition)

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Energy and Catalysis".

Deadline for manuscript submissions: 10 September 2026 | Viewed by 2437

Special Issue Editor

Dr. Maria Grazia Musolino

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Guest Editor
Department of Civil, Energy, Environmental and Materials Engineering (DICEAM), Mediterranean University of Reggio Calabria, 89122 Reggio Calabria, Italy
Interests: nanocomposites; nanoparticles; graphene oxide; graphene-based materials; synthesis; structural characterization; green chemistry; heterogeneous catalysis; selective hydrogenation; environmental catalysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Following the tremendous success of the first edition of the Special Issue “Advances in Nanostructured Electrode Materials: Design and Applications”, in which a total of eight papers were published (https://www.mdpi.com/journal/nanomaterials/special_issues/EER41U2O7R), a second edition is being launched.

The development of novel nanostructured materials is a cornerstone of emerging electrochemical technologies that provide clean and environmentally friendly solutions to meet end user requirements. Nanocomposites play a key role in the adoption of such technologies due to their unique and sometimes enhanced properties and because of the possibility of suitably tuning their structural and functional properties. Furthermore, nanostructured electrode materials are key in terms of significantly advancing the performance, efficiency, and safety technology. This Special Issue aims to depict the state-of-the-art design, synthesis, and characterization of various nanostructured electrode materials, as well as their electrochemical applications in the fields of electrocatalysis, energy conversion, energy storage, and environmental protection.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

  • Design and synthesis of nanostructured materials.
  • Functional nanomaterials.
  • Development of the different classes of multicomponent materials.
  • Nanoalloys.
  • Advanced characterization for understanding the electrochemical behavior and structure–property relationships of electrode materials.
  • Applications of nanostructured materials, including energy storage and conversion devices, electrocatalysis, water-splitting processes for hydrogen production, photocatalysis, and the removal of pollutants.

Dr. Maria Grazia Musolino
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

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-blind 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.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • electrodes
  • nanostructured materials
  • scalable synthesis
  • characterization
  • structure–property relationships
  • electrocatalysis
  • electrochemical performance
  • energy storage and conversion

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Related Special Issue

Published Papers (3 papers)

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Research

11 pages, 3184 KB  
Article
CMOS-Compatible Fabrication Module for Sub-100 nm TiN and TaN Pillar Electrodes for Carbon Nanotube Test Structures
by Guohai Chen, Takeshi Fujii, Takeo Yamada and Kenji Hata
Nanomaterials 2026, 16(6), 357; https://doi.org/10.3390/nano16060357 - 14 Mar 2026
Viewed by 584
Abstract
We report a versatile, CMOS-compatible fabrication module for sub-100 nm TiN and TaN pillar electrodes, a key building block for sandwich-type test structures. As a demonstration, the electrodes were integrated into carbon nanotube-based nonvolatile random-access memory (CRAM) test structures. High-resolution hydrogen silsesquioxane (HSQ) [...] Read more.
We report a versatile, CMOS-compatible fabrication module for sub-100 nm TiN and TaN pillar electrodes, a key building block for sandwich-type test structures. As a demonstration, the electrodes were integrated into carbon nanotube-based nonvolatile random-access memory (CRAM) test structures. High-resolution hydrogen silsesquioxane (HSQ) masks defined by electron beam lithography were transferred into TiN films using optimized Ar/Cl2 inductively coupled plasma reactive ion etching. Optical emission spectroscopy was used for real-time endpoint detection, ensuring precise etch control. The process achieved a TiN-to-HSQ selectivity of ~1.6 and reproducible nanoscale features with smooth sidewalls and an average taper angle of ~77°. Buffered hydrogen fluoride treatment effectively removed residual HSQ, revealing sharp TiN features and preserving pillar geometry. Atomic force microscopy (AFM) confirmed pillar height and profile fidelity, while conductive AFM verified electrical conductivity after planarization. The module was further demonstrated through the fabrication of TiN pillar arrays, TaN pillars, and sub-100 nm TiN line arrays. A CRAM test structure incorporating TiN pillars exhibited preliminary switching, indicating that both the test structure and fabrication process are feasible. This fabrication module provides a reproducible platform for nanoscale TiN and TaN electrodes, supporting laboratory-scale research and providing a pathway toward future integration of emerging memory and nanoelectronic technologies. Full article
(This article belongs to the Special Issue Advances in Nanostructured Electrode Materials: Design and Applications (2nd Edition))
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22 pages, 3281 KB  
Article
Coin-Cell Electric Double-Layer Capacitors with African Palm Kernel Activated Carbon Under Series and Parallel Connection
by Chelsy Gaviria, Zulamita Zapata-Benabithe, José Valentín Restrepo, Andrés Emiro Diez-Restrepo, Yiranis Barrios, Mauricio Úsuga, Erika Arenas-Castiblanco and César Nieto-Londoño
Nanomaterials 2026, 16(4), 260; https://doi.org/10.3390/nano16040260 - 16 Feb 2026
Viewed by 555
Abstract
The growing demand for efficient and sustainable energy storage has intensified interest in green materials known for their high-power density. In this work, we evaluated the electrochemical and electrical performance of coin-cell supercapacitors with activated carbon electrodes from palm kernel shell. Two activated [...] Read more.
The growing demand for efficient and sustainable energy storage has intensified interest in green materials known for their high-power density. In this work, we evaluated the electrochemical and electrical performance of coin-cell supercapacitors with activated carbon electrodes from palm kernel shell. Two activated carbons were obtained using KOH and ZnCl2 as activating agents at 700 °C and then superficially modified with nitric acid. The KOH-activated carbon electrodes showed the highest specific surface area (1181 m2 g−1) and the best electrochemical behavior, reaching an average gravimetric capacitance of 56. ± 9.2 F g−1. The coins were characterized electrically by series and parallel arrangements, yielding specific energy and specific power densities of 2.6 Wh kg−1 and 475 W kg−1, and 1.8 Wh kg−1 and 353 W kg−1, at 0.001 A and 0.75 V for parallel and series arrangements, respectively. Full article
(This article belongs to the Special Issue Advances in Nanostructured Electrode Materials: Design and Applications (2nd Edition))
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19 pages, 3240 KB  
Article
Pd/MnO2:Pd/C Electrocatalysts for Efficient Hydrogen and Oxygen Electrode Reactions in AEMFCs
by Ivan Cruz-Reyes, Balter Trujillo-Navarrete, Moisés Israel Salazar-Gastélum, José Roberto Flores-Hernández, Tatiana Romero-Castañón and Rosa María Félix-Navarro
Nanomaterials 2026, 16(1), 71; https://doi.org/10.3390/nano16010071 - 4 Jan 2026
Viewed by 864
Abstract
Developing cost-effective and durable electrocatalysts is essential for advancing anion exchange membrane fuel cells (AEMFCs). This work evaluates Pd-based catalysts supported on β-MnO2, Vulcan carbon (C), and their physical blend (Pd/MnO2:Pd/C) as bifunctional electrodes for the oxygen reduction reaction [...] Read more.
Developing cost-effective and durable electrocatalysts is essential for advancing anion exchange membrane fuel cells (AEMFCs). This work evaluates Pd-based catalysts supported on β-MnO2, Vulcan carbon (C), and their physical blend (Pd/MnO2:Pd/C) as bifunctional electrodes for the oxygen reduction reaction (ORR) and hydrogen oxidation reaction (HOR). The catalysts were synthesized via chemical reduction and characterized by TGA, ICP-OES, TEM, BET, and XRD. Rotating disk electrode studies revealed that the hybrid exhibited superior activity and kinetics, with lower Tafel slopes and higher exchange current densities compared to the individual supports. In AEMFCs, the hybrid reached 128.0 mW cm−2 as a cathode and 221.7 mW cm−2 as an anode, outperforming individual components. This enhanced performance arises from the synergistic interaction between Pd nanoparticles and MnO2, where MnO2 modulates the catalyst’s microstructure and local reaction environment while the carbon phase ensures efficient electron transport. MnO2, although inactive for the HOR alone, acted as a structural spacer, enhancing mass transport and stability. Durability tests confirmed that the hybrid electrocatalyst retained over 99% of its initial activity after 3000 cycles. These results highlight the hybrid Pd/MnO2:Pd/C as a promising, bifunctional, and durable electrocatalyst for AEMFC applications. Full article
(This article belongs to the Special Issue Advances in Nanostructured Electrode Materials: Design and Applications (2nd Edition))
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