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Nanomaterials
Special Issues
Advanced Nanomaterials for Electrochemical Sensors and Energy Storage Device Applications
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Advanced Nanomaterials for Electrochemical Sensors and Energy Storage Device Applications

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

Deadline for manuscript submissions: 20 September 2026 | Viewed by 4767

Special Issue Editors

Prof. Dr. Wei Yan

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Guest Editor
Department of Environmental Science & Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Interests: nanomaterials; energy storage; gas sensors; photocatalytic materials; resource recycling
Dr. Lei Zhu

E-Mail
Guest Editor
Department of Environmental Science & Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Interests: gas sensors; nanomaterials; environmental monitoring; metal oxide semiconductor; thermal runaway detection

Special Issue Information

Dear Colleagues,

Significant progress has been achieved in optimizing nanomaterials for enhanced electrochemical sensing and energy storage applications. Tailoring nanomaterial properties through strategic modifications, such as elemental doping, surface functionalization, and heterostructure engineering, has proven crucial. For electrochemical sensing, these modifications dramatically boost sensitivity, selectivity, and stability. Currently, in energy storage (batteries and supercapacitors), nanomaterial optimization focuses on maximizing capacity, rate capability, and cycling longevity. However, numerous challenges still need to be urgently addressed for designing advanced nanomaterials for fabricating high-performance sensing and energy storage devices. Therefore, it is imperative to conduct extensive experimental studies integrated with advanced characterization techniques, focusing on material properties, performance validation, mechanism investigation, and device integration, thereby establishing a scientific foundation for fabricating next-generation high-performance electronic devices.

We invite you to submit original research papers, communications, or review articles to this Special Issue titled “Advanced Nanomaterials for Electrochemical Sensors and Energy Storage Device Applications”.

This Special Issue will discuss the latest processing methods, microstructure characterizations, mechanisms, and properties of novel nanomaterials, as well as their applications in electrochemical sensors and energy storage devices. Research areas may include (but are not limited to) the following:

  • Novel fabrication methods for nanomaterials and composites;
  • Modification, functionalization and doping of nanomaterials;
  • Assembly and processing of nanomaterials;
  • Electrochemical sensors;
  • Energy storage device.

We look forward to receiving your contributions.

Prof. Dr. Wei Yan
Dr. Lei Zhu
Guest Editors

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

  • nanomaterials
  • nanoelectronics
  • gas sensors
  • wearable devices
  • energy storage
  • sensing technology
  • functional materials

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

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Research

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12 pages, 1967 KB  
Article
Optimization of Lithium–Sulfur Battery Performance via Nickel-Doped α-MnO2 Modified Separator
by Zhengtao Zhao, Lin Wan, Jiahui Chen and Huangqing Ye
Nanomaterials 2026, 16(8), 449; https://doi.org/10.3390/nano16080449 - 9 Apr 2026
Viewed by 558
Abstract
Lithium–sulfur batteries (LSBs) offer a theoretical energy density of 2600 Wh kg−1 but suffer from the polysulfide shuttle effect, which causes rapid capacity decay and limits practical application. To address this, we developed a bifunctional separator coating using Ni-doped α-MnO2 combined [...] Read more.
Lithium–sulfur batteries (LSBs) offer a theoretical energy density of 2600 Wh kg−1 but suffer from the polysulfide shuttle effect, which causes rapid capacity decay and limits practical application. To address this, we developed a bifunctional separator coating using Ni-doped α-MnO2 combined with carbon nanotubes (Ni-MnO2/CNTs). Ni doping induces lattice expansion due to the larger Ni2+ ionic radius, modulating the electronic structure to create more active sites, enhance electrical conductivity, and improve polysulfide adsorption and redox kinetics. The needle-like morphology further strengthens physical/chemical confinement of polysulfides and accelerates conversion reactions. Batteries with the Ni-MnO2/CNTs-modified separator deliver a high-rate capacity of 813 mAh g−1 at 5 C and exhibit a low capacity decay rate of 0.0399% per cycle over 1500 cycles at 2 C. Even under high sulfur loading (∼10 mg cm−2) and lean electrolyte conditions (10 μL mg−1), the cell maintains stable cycling with a decay rate of 0.0929% per cycle over 300 cycles at 0.2 C. This lattice-modulation strategy on commercial separators provides a simple, effective pathway toward high-energy-density, long-life LSBs. Full article
(This article belongs to the Special Issue Advanced Nanomaterials for Electrochemical Sensors and Energy Storage Device Applications)
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Review

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25 pages, 1565 KB  
Review
Density Functional Theory Insights into Polypyrrole-Based Functional Composites for Advanced Energy Storage, Sensing, and Environmental Applications
by Oluwaseye Samson Adedoja, Rendani Wilson Maladzhi, Oludolapo Akanni Olanrewaju, Samson Oluropo Adeosun and Oluwatoyin Joseph Gbadeyan
Nanomaterials 2026, 16(5), 285; https://doi.org/10.3390/nano16050285 - 24 Feb 2026
Cited by 1 | Viewed by 1125
Abstract
Polypyrrole-based functional composites are increasingly explored and extensively adopted for energy storage, sensing, and environmental applications due to their tunable electronic properties, chemical versatility, and mechanical stability. However, rational optimization of these composites requires a unified understanding of electronic, mechanical, thermal, and chemical [...] Read more.
Polypyrrole-based functional composites are increasingly explored and extensively adopted for energy storage, sensing, and environmental applications due to their tunable electronic properties, chemical versatility, and mechanical stability. However, rational optimization of these composites requires a unified understanding of electronic, mechanical, thermal, and chemical behavior at the atomic scale, which underlies their multifunctional behavior, and remains fragmented. Notably, Density Functional Theory (DFT) provides indispensable atomistic insight into the electronic, mechanical, thermal, and chemical interactions that govern the performance of multifunctional materials. To bridge these gaps, this review presents a comprehensive assessment of recent DFT and time-dependent DFT (TD-DFT) studies that elucidate the electronic, mechanical, thermal, and chemical characteristics of polypyrrole and its hybrid composites. Key theoretical descriptors, including electronic structure modulation, charge transfer behavior, adsorption energetics, interfacial binding energies, hydrogen bond formation, and charge redistribution, are critically assessed to establish structure–property relationships across diverse functional systems. Considerable attention is given to interfacial interactions, doping strategies, and composite architectures that govern durability, conductivity, and chemical stability. By consolidating current atomistic insights and identifying existing limitations, this review provides a coherent framework for rational material design. Notably, it presents the first systematic quantification of dopant steric effects in PPy multifunctional composites, linking atomistic-scale modifications to the optimization of functional properties in next-generation applications. Full article
(This article belongs to the Special Issue Advanced Nanomaterials for Electrochemical Sensors and Energy Storage Device Applications)
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29 pages, 6045 KB  
Review
Advancements and Strategies for Selectivity Enhancement in Chemiresistive Gas Sensors
by Jianwei Liu, Jingyun Sun, Lei Zhu, Jiaxin Zhang, Xiaomeng Yang, Yating Zhang and Wei Yan
Nanomaterials 2025, 15(17), 1381; https://doi.org/10.3390/nano15171381 - 8 Sep 2025
Cited by 5 | Viewed by 2548
Abstract
Chemiresistive gas sensors are extensively employed in environmental monitoring, disease diagnostics, and industrial safety due to their high sensitivity, low cost, and miniaturization. However, the high cross-sensitivity and poor selectivity of gas sensors limit their practical applications in complex environmental detection. In particular, [...] Read more.
Chemiresistive gas sensors are extensively employed in environmental monitoring, disease diagnostics, and industrial safety due to their high sensitivity, low cost, and miniaturization. However, the high cross-sensitivity and poor selectivity of gas sensors limit their practical applications in complex environmental detection. In particular, the mechanisms underlying the selective response of certain chemiresistive materials to specific gases are not yet fully understood. In this review, we systematically discuss material design strategies and system integration techniques for enhancing the selectivity and sensitivity of gas sensors. The focus of material design primarily on the modification and optimization of advanced functional materials, including semiconductor metal oxides (SMOs), metallic/alloy systems, conjugated polymers (CPs), and two-dimensional nanomaterials. This study offers a comprehensive investigation into the underlying mechanisms for enhancing the gas sensing performance through oxygen vacancy modulation, single-atom catalysis, and heterojunction engineering. Furthermore, we explore the potential of emerging technologies, such as bionics and artificial intelligence, to synergistically integrate with functional sensitive materials, thereby achieving a significant enhancement in the selectivity of gas sensors. This review concludes by offering recommendations aimed at improving the selectivity of gas sensors, along with suggesting potential avenues for future research and development. Full article
(This article belongs to the Special Issue Advanced Nanomaterials for Electrochemical Sensors and Energy Storage Device Applications)
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