Gas-Sensing Properties of Nanomaterials

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanoelectronics, Nanosensors and Devices".

Deadline for manuscript submissions: 24 October 2025 | Viewed by 308

Special Issue Editor

Special Issue Information

Dear Colleagues,

This study, entitled "Gas-Sensing Properties of Nanomaterials", explores the unique abilities of nanostructures in detecting gases. Nanostructured materials, due to their increased surface areas and altered electronic properties at the nanoscale, exhibit enhanced gas-sensing characteristics compared to bulk materials. These nanomaterials, often composed of metals, metal oxides, or carbon-based substances, interact differently with various gases, leading to changes in electrical, optical, or mass-related properties. This alteration allows for the sensitive and selective detection of target gases, crucial in environmental monitoring, industrial safety, and medical diagnostics. Researchers investigate the fabrication techniques and mechanisms underlying gas-sensing behavior to optimize sensor performance. Tailoring nanostructures' size, morphology, and composition enables the customization of sensors for specific gas detection requirements. Understanding these properties contributes to advancing gas-sensing technologies for diverse applications, offering more efficient, sensitive, and reliable detection methodologies.

Prof. Dr. Sheng Zhang
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 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 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
  • gas sensors
  • sensor technology
  • surface modification
  • nano-structure

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

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

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

18 pages, 2994 KiB  
Article
Band-Engineered α-Fe2O3@NiO P-N Heterojunction for Room-Temperature NH3 Detection and Real-Time Meat Spoilage Monitoring
by Mingjia Li, Gaoshan Zeng, Haoyue You, Ding Xi, Hui Huang, Xin Kou, Amjad Farid and Yongpeng Zhao
Nanomaterials 2025, 15(13), 987; https://doi.org/10.3390/nano15130987 - 25 Jun 2025
Viewed by 204
Abstract
Recent advancements in biomarker technology have revolutionized diagnostic and monitoring applications, yet their potential in food quality assessment remains largely untapped. Herein, we report a breakthrough in gas-sensitive nanocomposite engineering through the design of α-Fe2O3-NiO heterostructures synthesized via a [...] Read more.
Recent advancements in biomarker technology have revolutionized diagnostic and monitoring applications, yet their potential in food quality assessment remains largely untapped. Herein, we report a breakthrough in gas-sensitive nanocomposite engineering through the design of α-Fe2O3-NiO heterostructures synthesized via a single-step hydrothermal protocol. The introduction of NiO led to increased oxygen vacancies and active sites, thereby reducing the sensor’s operating temperature. Additionally, the P-N heterojunction structure promoted the redistribution of electrons and hole, thus enhancing its conductivity. The optimized sensor exhibited high sensitivity (75.5% at 100 ppm), fast response/recovery (20 s/92 s), and perfect selectivity for NH3 at room temperature. In the end, based on this sensor and combined with a Programmable Logic Controller (PLC), a rapid and nondestructive meat spoilage detection system was constructed to reflect the degree of spoilage of meat with the help of NH3 concentration, providing a valuable strategy for the application of biomarker detection in the food industry. Full article
(This article belongs to the Special Issue Gas-Sensing Properties of Nanomaterials)
Show Figures

Figure 1

Back to TopTop