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A protonated mononuclear complex [Zn(Hbpvp)Cl] (1) is assembled by solvothermal reaction of Zn(NO)·6HO with 3,5-bis-(2-(pyridin-4-yl)vinyl)pyridine (bpvp) in DMF/HO with a few drops of concentrated HCl added. Hydrogen-bonded zigzag chains of 1 crystallize over time to form large-size hollow hexagonal tubular crystals whose evolution from irregular crystal seeds is monitored by SEM and PXRD. Upon UV light irradiation, single crystals of 1 undergo a stereoselective [2+2] photocycloaddition while its Methyl Blue-coated crystals keep intact.
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http://dx.doi.org/10.1039/c7cc02704d | DOI Listing |
A hollow-core hexagonal lattice terahertz (THz) photonic crystal fiber (PCF) is designed. The proposed THz PCF supports multi-pole modes spanning monopole-like, dipole-like, quadrupole-like, and hexapole-like modes. A low confinement loss of 0.
View Article and Find Full Text PDFJ Colloid Interface Sci
December 2025
Collaborative Innovation Center of Sustainable Energy Materials, School of Physical Science and Technology, Guangxi University, Guangxi Key Laboratory of Electrochemical Energy Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Nanning 530004,
Developing Ruthenium-based catalysts with high durability for oxygen evolution reaction (OER) is critical to achieving low-cost proton exchange membrane water electrolysis (PEMWE). Herein, Ruthenium-Iridium-Cobalt alloy hollow nanospheres (RuIrCo HNSs) with an average size of 25.0 nm and an ultra-thin shell thickness of around 4.
View Article and Find Full Text PDFACS Sens
June 2025
College of Food Science and Technology, International Research Center for Food and Health, Shanghai Ocean University, Shanghai 201306, China.
The presence of formaldehyde (HCHO) in foods can pose specific health risks, including irritation, allergic reactions, and potential long-term health issues due to its toxic properties. The application of metal oxide semiconductor gas sensors to detect trace levels of HCHO in aquatic products has garnered growing interest. Consequently, a reliable and optimized metal organic framework derivation method combined with a postmodification process is utilized to synthesize different aspect ratio InO hexagonal hollow nanotubes (HHNT) assembled by InO nanocrystals.
View Article and Find Full Text PDFSci Rep
May 2025
Department of Chemistry Education, Farhangian University, P.O. Box 14665-889, Tehran, Iran.
In this paper, the electronic and adsorption properties of AgO metal oxides modified BP/BSe van der Waals heterostructures were investigated using density functional theory calculations. The adsorptions of CO, NO, NO and NO gas molecules on the AgO modified BP/BSe heterostructures were examined to evaluate their sensing abilities. The largest binding energy (- 1.
View Article and Find Full Text PDFACS Sens
April 2025
College of Information Science and Engineering, Northeastern University, Shenyang 110819, China.
Acetone gas sensitivity detection holds significant application value in environmental monitoring, industrial safety, and health assessment. This study presents the first report on the assembly of carbon quantum dots (CQDs) on the surface of hollow hexagonal Co(OH)F for efficient acetone gas detection. The fabricated sensor exhibits the ability to detect acetone at a low concentration of 200 ppb at 120 °C, demonstrating excellent moisture resistance and long-term stability.
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