Nickel oxide has been widely used in chemical sensing applications, because it has an excellent p-type semiconducting property with high chemical stability. Here, we present a novel technique of fabricating three-dimensional porous nitrogen-doped nickel oxide nanosheets as a highly sensitive NO₂ sensor. The elaborate nanostructure was prepared by a simple and effective hydrothermal synthesis method. Subsequently, nitrogen doping was achieved by thermal treatment with ammonia gas. When the p-type dopant, i.e., nitrogen atoms, was introduced in the three-dimensional nanostructures, the nickel-oxide-nanosheet-based sensor showed considerable NO₂ sensing ability with two-fold higher responsivity and sensitivity compared to non-doped nickel-oxide-based sensors.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666478 | PMC |
| http://dx.doi.org/10.3390/nano7100313 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Study on the Vibration Isolation Mechanism of Loofah Sponge.
Biomimetics (Basel)
December 2024
Wuhan Institute of Shipbuilding Technology, Wuhan 430050, China.
The loofah sponge has a complex, three-dimensional, porous mesh fiber structure characterized by markedly low density and excellent vibration isolation properties. In this study, loofah sponges made from dried were divided into two components: the core unit and the shell unit, which were further subdivided into five regions. Static compression performance tests and vibration isolation analysis were conducted on the loofah sponge and its individual parts.
View Article and Find Full Text PDFBimodal macroporous 3D scaffolds based on compatibilized PCL and PLA blend using PCL-PEG-PCL block copolymers and cellulose nanocrystals for osteogenic differentiation of hMSCs.
Int J Biol Macromol
January 2025
Pasteur Institute of Iran, Faculty of Bioscience and Biotechnology, Tehran, Iran.
In recent years, attempts were made to develop biomaterials using synthetic and natural polymers to induce osteogenesis of human mesenchymal stem cells (hMSCs). Poly(ε-caprolactone) (PCL) is one of the few synthetic polymers with the potential to differentiate hMSCs to bone. However, its potential is limited, attributed to its low strength; its fast crystallization rate also compromises its dimensional stability.
View Article and Find Full Text PDFFluorescent Properties of Mesalazine-Loaded Hydrogel Nanocomposites for the Treatment of Ulcerative Colitis.
J Fluoresc
January 2025
Infectious Disease Department, Hangzhou First People's Hospital Tonglu Hospital, Hangzhou, Zhejiang, China.
This study synthesizes a novel three-dimensional (3D) porous coordination polymer (CP), {[Co(L)₀.₅(H₂O)]·NMP·H₂O} (1), via a solvothermal method in a mixed solvent of water and NMP (1-methyl-2-pyrrolidinone), reacting Co(II) ions with H₄L (1,4-bis(5,6-carboxybenzimidazolylmethyl)benzene). The CP exhibits unique fluorescence properties, emitting at 420 nm under UV light excitation at 350 nm, and serves as a carrier for Mesalazine (MSZ) in therapeutic applications.
View Article and Find Full Text PDFA mechanically robust chitosan-based macroporous foam for sustainable Se(IV) elimination from wastewater.
Carbohydr Polym
March 2025
College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; College of Chemical Engineering and Technology, Yantai Nanshan University, Yantai 265713, China. Electronic address:
The contamination of water resources by selenium (Se), particularly in the highly toxic Se(IV) oxidation state, poses a significant environmental and public health concern due to its detrimental impacts on humans and aquatic ecosystems. In this work, we report a novel composite foam (CFC) by incorporating chitosan (CS), cellulose nanofibers (CNF) and iron oxyhydroxide (FeOOH) nanoparticles through a one-pot fabrication process. The CFC foam features a three-dimensional porous structure, conferring both exceptional mechanical strength and superior adsorption performance for Se(IV), with a maximum equilibrium adsorption capacity of 90 mg/g achieved within 3 h.
View Article and Find Full Text PDFPolydopamine/Melamine Sponge-Derived Compressible Carbon Foam for High-Performance Supercapacitors.
Langmuir
January 2025
Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng 224051, China.
Electrode materials with a deformation capability are vital to the development of flexible supercapacitors. However, the preparation of porous carbons with a deformability remains challenging. Herein, a compressible carbon foam has been successfully prepared using a polydopamine/melamine sponge (PDA/MS) as the precursor material.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!