Special Issue "Advanced Nanomaterials and Nanodevices for VOCs Gas Sensor"

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Environmental Nanoscience and Nanotechnology".

Deadline for manuscript submissions: 31 August 2022 | Viewed by 1719

Special Issue Editor

Prof. Dr. Jiaqiang Xu
E-Mail Website
Guest Editor
NEST Lab, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China
Interests: gas sensor; QCM sensor; nanomaterials; gas sensing mechanism; metal oxide semiconductor; smart devices; VOCs sensor
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to invite you to join the 4th International Conference on Advanced Nanomaterials and Nanodevices (ICANN 2022), hosted online at http://www.icannd.org.

On the 100th anniversary of the founding of Shanghai University, the 4th International Conference on Advanced Nanomaterials and Nanodevices (ICANN 2022) will be hosted by Shanghai University from July 15 to 17, 2022. Scholars and people from all walks of life at home and abroad are sincerely invited to gather at ICANN for an academic feast and witness the century-old glory of Shanghai University. The theme of the conference focused on advanced nanomaterials, nanodevices and advanced nanomaterials as gas sensors for the detection of volatile organic compounds. The conference aims to provide experts and scholars in related research fields around the world with opportunities to exchange their latest research results and discuss the direction of academic development. The representatives of universities and scientific research institutes are sincerely welcomed to participate in this conference, to actively write academic papers, progress reviews and industry trends, report the latest research results, and showcase new products, new technologies and testing instruments. As one of the cooperating journals, Nanomaterials welcomes experts, scholars and student representatives from all walks of life engaged in gas- and humidity-sensing technology and related fields to participate in this conference.

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

  • Advanced nanomaterials for VOCs gas sensing
  • Advanced nanodevices for VOCs gas sensor
  • Advanced characterization method for VOCs sensing mechanism
  • Advanced calculation and theory analysis for sensing mechanism or data processing
  • Advanced gas sensor application in safety, health, and environmental protection

Prof. Dr. Jiaqiang Xu
Guest Editor

Manuscript Submission Information

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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

  • advanced nanomaterials
  • advanced gas sensor
  • nanodevices and integrated application
  • advanced sensing technology
  • volatile organic compounds detection
  • gas sensing mechanism

Published Papers (3 papers)

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Research

Article
Rational Design of SnO2 Hollow Microspheres Functionalized with Derivatives of Pt Loaded MOFs for Superior Formaldehyde Detection
Nanomaterials 2022, 12(11), 1881; https://doi.org/10.3390/nano12111881 - 31 May 2022
Viewed by 351
Abstract
In this work, SnO2 hollow microspheres functionalized with different incorporated amounts of [email protected]3O4 complex catalyst were innovatively designed by using an MOF template. The results show that sensor based on the optimal incorporated amount of [email protected]3O4 [...] Read more.
In this work, SnO2 hollow microspheres functionalized with different incorporated amounts of [email protected]3O4 complex catalyst were innovatively designed by using an MOF template. The results show that sensor based on the optimal incorporated amount of [email protected]3O4 not only greatly enhances the response value of SnO2 to formaldehyde (Rair/Rformaldehyde = 4240 toward 100 ppm) but also decreases the low detection limit (50 ppb), which is quite outstanding compared with other SnO2-based formaldehyde sensors. Further analysis proves that the content of oxygen vacancy and chemisorbed oxygen and the catalytic effect of ultra-small Pt play the key roles in improving the formaldehyde sensing performance. Meanwhile, this present work demonstrates that oxide semiconductors functionalized with the derivatives of MOF templated catalysts may lead to the discovery of new material systems with outstanding sensing performance. Full article
(This article belongs to the Special Issue Advanced Nanomaterials and Nanodevices for VOCs Gas Sensor)
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Article
Ag-Modified Porous Perovskite-Type LaFeO3 for Efficient Ethanol Detection
Nanomaterials 2022, 12(10), 1768; https://doi.org/10.3390/nano12101768 - 22 May 2022
Viewed by 469
Abstract
Perovskite (ABO3) nanosheets with a high carrier mobility have been regarded as the best candidates for gas-sensitive materials arising from their exceptional crystal structure and physical–chemical properties that often exhibit good gas reactivity and stability. Herein, Ag in situ modified porous [...] Read more.
Perovskite (ABO3) nanosheets with a high carrier mobility have been regarded as the best candidates for gas-sensitive materials arising from their exceptional crystal structure and physical–chemical properties that often exhibit good gas reactivity and stability. Herein, Ag in situ modified porous LaFeO3 nanosheets were synthesized by the simple and efficient graphene oxide (GO)-assisted co-precipitation method which was used for sensitive and selective ethanol detection. The Ag modification ratio was studied, and the best performance was obtained with 5% Ag modification. The Ag/LaFeO3 nanomaterials with high surface areas achieved a sensing response value (Rg/Ra) of 20.9 to 20 ppm ethanol at 180 °C with relatively fast response/recovery times (26/27 s). In addition, they showed significantly high selectivity for ethanol but only a slight response to other interfering gases. The enhanced gas-sensing performance was attributed to the combination of well-designed porous nanomaterials with noble metal sensitization. The new approach is provided for this strategy for the potential application of more P-type ABO3 perovskite-based gas-sensitive devices. Full article
(This article belongs to the Special Issue Advanced Nanomaterials and Nanodevices for VOCs Gas Sensor)
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Article
Area-Selective, In-Situ Growth of Pd-Modified ZnO Nanowires on MEMS Hydrogen Sensors
Nanomaterials 2022, 12(6), 1001; https://doi.org/10.3390/nano12061001 - 18 Mar 2022
Cited by 1 | Viewed by 589
Abstract
Nanomaterials are widely utilized as sensing materials in semiconductor gas sensors. As sensor sizes continue to shrink, it becomes increasingly challenging to construct micro-scale sensing materials on a micro-sensor with good uniformity and stability. Therefore, in-situ growth with a desired pattern in the [...] Read more.
Nanomaterials are widely utilized as sensing materials in semiconductor gas sensors. As sensor sizes continue to shrink, it becomes increasingly challenging to construct micro-scale sensing materials on a micro-sensor with good uniformity and stability. Therefore, in-situ growth with a desired pattern in the tiny sensing area of a microsensor is highly demanded. In this work, we combine area-selective seed layer formation and hydrothermal growth for the in-situ growth of ZnO nanowires (NWs) on Micro-electromechanical Systems (MEMS)-based micro-hotplate gas sensors. The results show that the ZnO NWs are densely grown in the sensing area. With Pd nano-particles’ modification of the ZnO NWs, the sensor is used for hydrogen (H2) detection. The sensors with Pd-ZnO NWs show good repeatability as well as a reversible and uniform response to 2.5 ppm–200 ppm H2. Our approach offers a technical route for designing various kinds of gas sensors. Full article
(This article belongs to the Special Issue Advanced Nanomaterials and Nanodevices for VOCs Gas Sensor)
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