12036-21-4Relevant articles and documents
McClean, Roy E.,Pasternack, Louise
, p. 209 - 213 (1993)
Synthesis of VO2 nanoparticles by a hydrothermal-assisted homogeneous precipitation approach for thermochromic applications
Li, Wenjing,Ji, Shidong,Li, Yamei,Huang, Aibin,Luo, Hongjie,Jin, Ping
, p. 13026 - 13033 (2014)
Thermochromic VO2 particles, which have potential applications in smart windows for energy saving, have been successfully prepared by a convenient route combining homogeneous precipitation and hydrothermal processes. As a result, the particle size can be easily tuned from several tens to hundreds of nanometers by controlling the initial vanadium source concentration. Lower concentration yielded large rod-like crystals, while high concentration resulted in small near-spherical nanocrystals. The decrease of the size of VO2 particles leads to an improvement in thermochromic properties, along with a wider hysteresis of the phase transition temperature. In addition, the W-doping can effectively tune the phase transition temperature (Tc) down to ambient temperature with the efficiency of about -21.3 °C per at% W in the doping range from 0 to 2.0 at% W. This journal is the Partner Organisations 2014.
Competing with other polyanionic cathode materials for potassium-ion batteries via fine structure design: New layered KVOPO4 with a tailored particle morphology
Liao, Jiaying,Hu, Qiao,Che, Bo,Ding, Xiang,Chen, Fei,Chen, Chunhua
, p. 15244 - 15251 (2019)
Layered materials with two-dimensional ion diffusion channels are attractive for fast kinetics in secondary batteries. However, it is a great challenge to tolerate the structure evolution and volume change during the insertion/extraction of large size K ions. Herein, we report new layered KVOPO4 (L-KVOP) with a controllable morphology prepared by a hydrothermal method. The L-KVOP electrodes exhibit advantageous K-storage performance, including a high average voltage of 3.65 V, a high capacity of 115 mA h g-1 (0.2C, 1C = 120 mA h g-1), considerable cycling stability with 86.8% capacity retention over 100 cycles (0.5C) and superior rate capability in potassium ion batteries. A high contribution of capacitive charge storage is revealed due to the fast ion diffusion in the bulk. The reversible structural evolution during K ion insertion/extraction is verified by ex situ X-ray diffraction, and the volume change is only 9.4%. Its superior rate performance and energy density make L-KVOP a promising candidate for potassium-ion batteries.
Synthesis, molecular modeling, and docking studies of a new pyridazinone-acid hydrazone ligand, and its nano metal complexes. Spectroscopy, thermal analysis, electrical properties, DNA cleavage, antitumor, and antimicrobial activities
Abdelrahman, Maha S. A.,El-ghamry, Mosad A.,Omar, Fouz M.,Saleh, Akila A.
, (2021/12/02)
New nano Co(II), Ni(II), Cu(II), Zn(II), Fe(III) complexes, and oxovanadium(IV), dioxouranium(VI) complexes of pyridazinone-acid hydrazone ligand, DCNHP (H2L), in addition of new mixed-ligand complexes using 8-HQ/or 1,10-phen as an auxiliary ligand (L), have been synthesized and characterized by different techniques. The ligand, H2L, acted as tridentate towards the metal ions in a mono-, and bis- deprotonated form. The complexes exhibited a variety of geometrical structures including octahedral, square pyramidal, and tetrahedral configurations. The results of TGA confirmed the thermal stability of the metal complexes. The X-ray diffractograms and TEM images confirmed that the particles of the investigated compounds have been situated in nano-range with spherical and stick-shaped. Molecular modeling studies indicated that the theoretical data agree well with the experimental results. The antimicrobial activity study showed enhancement in activity of the free ligand upon complexation. The results of antitumor screening indicated that all examined compounds displayed inhibition of Hepatocellular carcinoma cell line (HepG-2) viability. The ligand, H2L, and its nano Cu(II) complex 7 displayed strong antitumor activity with IC50 = 3.80 and 3.81 μg/mL, respectively. The DNA cleavage study revealed that no ability for the screened compounds to cleavage DNA, and they may be able to induce cellular death in cancer cells through the apoptosis pathway. The docking results suggesting strong interactions of both the ligand, H2L, and its Cu(II) complex 7 with the VEGFR-2 enzyme, these interactions are very similar to that of the known hepatocellular carcinoma (HCC) inhibitor, sorafenib (Nexavar) with the target enzyme, and indicating the effective inhibition of the investigated compounds towards hepatocellular carcinoma. Moreover, the electrical conductivity study in solid-state revealed that the nano Cu(II) complex 7 displayed higher σac values than that for the free ligand, H2L, and the investigated compounds act as semiconductors.
