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New Sensors Based on Inorganic Material

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Chemical Sensors".

Deadline for manuscript submissions: 1 June 2025 | Viewed by 2590

Special Issue Editors


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Guest Editor
School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
Interests: materials and technologies for pollutant treatment; environmental pollutant detection materials and sensors

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Guest Editor
School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
Interests: light excited room temperature gas sensor

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Guest Editor
School of Materials Science and Engineering, Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, China
Interests: design, characterization, and analysis of inorganic materials

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Guest Editor
School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
Interests: inorganic material based gas sensor

Special Issue Information

Dear Colleagues,

We are delighted to announce the Special Issue on new sensors based on inorganic materials, focusing on the application and development of inorganic materials (particularly micron and nano inorganic materials) in the field of sensors. With the development of materials science and nano synthesis technology, micron and nano inorganic materials exhibit superior electrical, optical, and thermal properties, enabling higher sensitivity, selectivity, and response speed. On this basis, by innovating modification methods, optimizing characterization methods, expanding detection scenarios, conducting in-depth research on sensing principles, exploring new structures of sensors, and achieving high integration, not only can the advancement of sensing technology be promoted, but it will also have a profound impact on the development of materials science and the advancement of Internet of Things (IoT) technology. As research deepens and technology progresses, the application scenarios for inorganic material sensors are expected to become more diverse, and their commercial potential and societal value are equally promising.

In this Special Issue, we eagerly seek novel research and applications that support the development of micro/nano inorganic material-based sensors. We welcome submissions that describe new perspectives, innovative methods, and impactful applications. Topics of interest include, but are not limited to:

  • micron inorganic materials and nano inorganic materials;
  • surface modification and characterization;
  • multifunctional sensors;
  • sensing principles and technologies;
  • design, manufacturing, and data analysis of new sensors;
  • next-generation new sensors and their integrations

Prof. Dr. Zheng Jiao
Dr. Xue-Chun Yang
Prof. Dr. Jingtai Zhao
Dr. Yun Guo
Guest Editors

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 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

  • micron inorganic materials and nano inorganic materials
  • surface modification and characterization
  • multifunctional sensors
  • sensing principles and technologies
  • design, manufacturing, and data analysis of new sensors
  • next-generation new sensors and their integrations

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Published Papers (3 papers)

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Research

13 pages, 4498 KiB  
Article
BaCo0.06Bi0.94O3-Doped NiZn Ferrites for High Frequency Low Loss Current Sensors: LTCC Sintering and Magnetic Properties
by Shao-Pu Jiang, Chang-Lai Yuan, Wei Liu, Lin Li, Huan Li and Jing-Tai Zhao
Sensors 2025, 25(9), 2731; https://doi.org/10.3390/s25092731 - 25 Apr 2025
Viewed by 110
Abstract
In order to meet the demand for high-frequency current sensors in 5G communication and new energy fields, there is an urgent need to develop high-performance nickel-zinc ferrite-based co-fired ceramic magnetic cores. In this study, a nickel-zinc ferrite core based on low temperature co-fired [...] Read more.
In order to meet the demand for high-frequency current sensors in 5G communication and new energy fields, there is an urgent need to develop high-performance nickel-zinc ferrite-based co-fired ceramic magnetic cores. In this study, a nickel-zinc ferrite core based on low temperature co-fired ceramic (LTCC) technology was developed. The regulation mechanism of BaCo0.06Bi0.94O3 doping on the low-temperature sintering characteristics of NiZn ferrites was systematically investigated. The results show that the introduction of BaCo0.06Bi0.94O3 reduces the sintering temperature to 900 °C and significantly improves the density and grain uniformity of ceramics. When the doping amount is 0.75 wt%, the sample exhibits the lowest coercivity of 35.61 Oe and the following optimal soft magnetic properties: initial permeability of 73.74 (at a frequency of 1 MHz) and quality factor of 19.64 (at a frequency of 1 MHz). The highest saturation magnetization reaches 66.07 emu/g at 1 wt% doping. The results show that BaCo0.06Bi0.94O3 doping can regulate the grain boundary liquid phase distribution and modulate the magnetocrystalline anisotropy, which provides an experimental basis and optimization strategy for the application of LTCC technology in high-frequency current sensors. Full article
(This article belongs to the Special Issue New Sensors Based on Inorganic Material)
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19 pages, 4621 KiB  
Article
Highly Selective Room-Temperature Blue LED-Enhanced NO2 Gas Sensors Based on ZnO-MoS2-TiO2 Heterostructures
by Soraya Y. Flores, Elluz Pacheco, Carlos Malca, Xiaoyan Peng, Yihua Chen, Badi Zhou, Dalice M. Pinero, Liz M. Diaz-Vazquez, Andrew F. Zhou and Peter X. Feng
Sensors 2025, 25(6), 1781; https://doi.org/10.3390/s25061781 - 13 Mar 2025
Viewed by 1035
Abstract
This study presents the fabrication and characterization of highly selective, room-temperature gas sensors based on ternary zinc oxide–molybdenum disulfide–titanium dioxide (ZnO-MoS2-TiO2) nanoheterostructures. Integrating two-dimensional (2D) MoS2 with oxide nano materials synergistically combines their unique properties, significantly enhancing gas [...] Read more.
This study presents the fabrication and characterization of highly selective, room-temperature gas sensors based on ternary zinc oxide–molybdenum disulfide–titanium dioxide (ZnO-MoS2-TiO2) nanoheterostructures. Integrating two-dimensional (2D) MoS2 with oxide nano materials synergistically combines their unique properties, significantly enhancing gas sensing performance. Comprehensive structural and chemical analyses, including scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), Raman spectroscopy, and Fourier transform infrared spectroscopy (FTIR), confirmed the successful synthesis and composition of the ternary nanoheterostructures. The sensors demonstrated excellent selectivity in detecting low concentrations of nitrogen dioxide (NO2) among target gases such as ammonia (NH3), methane (CH4), and carbon dioxide (CO2) at room temperature, achieving up to 58% sensitivity at 4 ppm and 6% at 0.1 ppm for NO2. The prototypes demonstrated outstanding selectivity and a short response time of approximately 0.51 min. The impact of light-assisted enhancement was examined under 1 mW/cm2 weak ultraviolet (UV), blue, yellow, and red light-emitting diode (LED) illuminations, with the blue LED proving to deliver the highest sensor responsiveness. These results position ternary ZnO-MoS2-TiO2 nanoheterostructures as highly sensitive and selective room-temperature NO2 gas sensors that are suitable for applications in environmental monitoring, public health, and industrial processes. Full article
(This article belongs to the Special Issue New Sensors Based on Inorganic Material)
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16 pages, 3734 KiB  
Article
Ultra-Sensitive Gas Sensor Based on CDs@ZnO
by Shuo Xiao, Zheng Jiao and Xuechun Yang
Sensors 2025, 25(3), 905; https://doi.org/10.3390/s25030905 - 2 Feb 2025
Viewed by 1152
Abstract
Ethylene glycol (EG) is a colorless and odorless organic compound, which is an important industrial raw material but harmful to the environment and human health. Thus, it is necessary to develop high-performance sensing materials to monitor EG gas. Herein, sea urchin-shaped ZnO was [...] Read more.
Ethylene glycol (EG) is a colorless and odorless organic compound, which is an important industrial raw material but harmful to the environment and human health. Thus, it is necessary to develop high-performance sensing materials to monitor EG gas. Herein, sea urchin-shaped ZnO was successfully synthesized by a hydrothermal method. Subsequently, a series of carbon dot (CD)-modified ZnO nanocomposites were successfully prepared using a simple mechanical grinding method. The prepared CDs@ZnO-1 sensor exhibits an excellent response to EG gas, with a response value of 1356.89 to 100 ppm EG at the optimal operating temperature (220 °C). After five cycles of detection, the sensor can still maintain a stable response. The enhanced sensing performance of EG can be attributed to rich oxygen vacancies that are generated on the surface of CDs@ZnO, and the heterojunction formed between p-type CDs and n-type ZnO. This study provides inspiration for the development of high-response semiconductor metal oxide sensors. Full article
(This article belongs to the Special Issue New Sensors Based on Inorganic Material)
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