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Nanomaterials
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Nano Surface Engineering: 2nd Edition
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Nano Surface Engineering: 2nd Edition

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Synthesis, Interfaces and Nanostructures".

Deadline for manuscript submissions: 29 August 2025 | Viewed by 479

Special Issue Editors

Dr. Hao Wu

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Guest Editor
Guangdong Key Laboratory of Materials and Equipment in Harsh Marine Environment and School of Naval Architecture and Ocean Engineering, Guangzhou Maritime University, Guangzhou 510725, China
Interests: surface engineering; functional thin film; plasma technology; corrosion
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Kejian Ding

E-Mail Website
Guest Editor
School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, China
Interests: nanomaterials; surface engineering; biosensor; photocatalysis
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Guosong Wu

E-Mail Website
Guest Editor
College of Materials Science and Engineering, Hohai University, Nanjing 210024, China
Interests: coatings; surface modification; corrosion; plasma-related technologies
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Over the past few decades, nanomaterials and nanotechnology have significantly reshaped numerous fields within materials science and engineering, with surface science and engineering standing out among the most profoundly impacted areas. Nanomaterials’ unique physical and chemical properties impart surfaces and interfaces with exceptional functional advantages, including enhanced electrical, electronic, magnetic, mechanical, wear-resistant, and corrosion-resistant properties. Concurrently, surface engineering technology has played a pivotal role in advancing nanoscience and nanotechnology. Through surface engineering, it is possible to fabricate nanoscale thin films or nanodevices with precision, modify nanoscale structures and surface features in targeted ways, and synthesize novel functional nanomaterials or nanocomposites with superior structural and interfacial characteristics. The synergy between surface engineering and nanomaterials presents boundless opportunities for the design and application of innovative functional materials and interfaces.

This Special Issue highlights cutting-edge developments in nanoscale and nanomaterial-related surface engineering. It engages both academic and industrial audiences in exploring theoretical advancements and practical applications at the intersection of surface engineering and nanomaterials.

We welcome original research and review articles on a range of topics, including but not limited to the following:

  • Nanoscale surface science and engineering, including surface modification, structure manipulation and assembly phenomena at the nano/atomic scale;
  • Low-dimensional materials and their applications in functional interfaces and nanodevices;
  • Nanoscale interfaces across diverse applied fields, including catalysis, energy storage and conversion, biomedical and biomaterials, semiconductors, sensors, and protective coatings;
  • Nanostructured or nanomaterial-based thin films and coatings;
  • Surface phenomena and effects related to nanotexture, nanoarchitecture, or nanocrystalline;
  • Characterization and manufacturing techniques for nanoscale surfaces and interfaces.

Dr. Hao Wu
Prof. Dr. Kejian Ding
Prof. Dr. Guosong Wu
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 100 words) can be sent to the Editorial Office for announcement on this website.

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 2900 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

  • surface engineering
  • nanomaterials
  • nanoscale
  • nanostructure
  • thin film
  • low-dimensional materials
  • functional interfaces
  • surface modification techniques

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Published Papers (1 paper)

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Research

15 pages, 3561 KiB  
Article
High-Performance Hydrogen Sensing at Room Temperature via Nb-Doped Titanium Oxide Thin Films Fabricated by Micro-Arc Oxidation
by Chilou Zhou, Zhiqiu Ye, Yue Tan, Zhenghua Wu, Xinyi Guo, Yinglin Bai, Xuying Xie, Zilong Wu, Ji’an Feng, Yao Xu, Bo Deng and Hao Wu
Nanomaterials 2025, 15(2), 124; https://doi.org/10.3390/nano15020124 - 16 Jan 2025
Viewed by 413
Abstract
Metal oxide semiconductor (MOS) hydrogen sensors offer advantages, such as high sensitivity and fast response, but their challenges remain in achieving low-cost fabrication and stable operation at room temperature. This study investigates Nb-doped TiO2 (NTO) thin films prepared via a one-step micro-arc [...] Read more.
Metal oxide semiconductor (MOS) hydrogen sensors offer advantages, such as high sensitivity and fast response, but their challenges remain in achieving low-cost fabrication and stable operation at room temperature. This study investigates Nb-doped TiO2 (NTO) thin films prepared via a one-step micro-arc oxidation (MAO) with the addition of Nb2O5 nanoparticles into the electrolyte for room-temperature hydrogen sensing. The characterization results revealed that the incorporation of Nb2O5 altered the film’s morphology and phase composition, increasing the Nb content and forming a homogeneous composite thin film. Hydrogen sensing tests demonstrated that the NTO samples exhibited significantly improved sensitivity, selectivity, and stability compared to undoped TiO2. Among the fabricated samples, NTO thin film prepared at Nb2O5 concentration of 6 g/L (NTO-6) showed the best performance, with a broad detection range, excellent sensitivity, rapid response, and good specificity to hydrogen. A strong linear relationship between response values and hydrogen concentration (10–1000 ppm) highlights its potential for precise hydrogen detection. The enhanced hydrogen sensing mechanism of NTO thin films primarily stems from the influence of Nb2O5; nanoparticles doping in the anatase-phase TiO2 structure on the semiconductor surface depletion layer, as well as the improved charge transfer and additional adsorption sites provided by the Nb/Ti composite metal oxides, such as TiNb2O7 and Ti0.95Nb0.95O4. This study demonstrates the potential of MAO-fabricated Nb-doped TiO2 thin films as efficient and reliable hydrogen sensors operating at room temperature, offering a pathway for novel gas-sensing technologies to support clean energy applications. Full article
(This article belongs to the Special Issue Nano Surface Engineering: 2nd Edition)
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