Triethanolammonium tetrachloronickelate was synhesized by a solid state reaction of triethanolamine hydrochloride with anhydrous nickel chloride. The compound undergoes a reversible thermochromism phase transition at ...Triethanolammonium tetrachloronickelate was synhesized by a solid state reaction of triethanolamine hydrochloride with anhydrous nickel chloride. The compound undergoes a reversible thermochromism phase transition at ca.152 ℃. UV-visible, near-IR, IR spectra and elemental analysis results confirmed the structure of the product. It was deduced that thermochromism of the product is caused by the structural phase transition of the complex ion, NiCl 2- 4. The enthalpy change of phase transition for the product was 61.0 kJ/mol determinated by DSC.展开更多
Organicinorganic hybridbis(diethylammonium)tetrachlorocuprate was synthesized by solid state synthesis at lowheating temperature.Thermochromism and the probability on solid state reactiom of the hybrid were inve...Organicinorganic hybridbis(diethylammonium)tetrachlorocuprate was synthesized by solid state synthesis at lowheating temperature.Thermochromism and the probability on solid state reactiom of the hybrid were investigated by IR,DSC,XRD,and(in situ)UVvisible spectra.Solid state synthesis has much higher yield (908%) than solution method (491%) and almost need not any solvent during reaction process.展开更多
To investigate the process optimizationof Cu-en/AP composite microspheres preparation via electrostatic spraying,and to reveal the effects of droplet properties and flow rate variations on the experimental results dur...To investigate the process optimizationof Cu-en/AP composite microspheres preparation via electrostatic spraying,and to reveal the effects of droplet properties and flow rate variations on the experimental results during the electrostatic spraying process,the prepared process parameters of Cu-en/AP composite microspheres by electrostatic spray method under the orthogonal experimental design simulated by ANSYS(Fluent).The influence of flow rate,solvent ratio,and solid mass on the experimental results is examined using a controlled variable method.The results indicate that under the conditions of a flow rate of 2.67×10^(-3)kg/s an acetone-to-deionized water ratio of 1.5∶1.0,and a solid mass of 200 mg,the theoretical particle size of the composite microspheres can reach e nanoscale.Droplet trajectories in the electric field remain stable without significant deviation.The simulation results show that particle diameter decreases with increasing flow rate,with the trend leveling off around a flow rate of 1×10^(-3)kg/s.As the solvent ratio increases(with higher acetone content),particle diameter initially decreases,reaching a minimum around a ratio of 1.5∶1.0 before gradually increasing.Increasing the solid mass also reduces the particle diameter,with a linear increase in diameter observed at around 220 mg.Cu-en/AP composite microspheres with nanoscale dimensions were confirmed under these conditions by the final SEM images.展开更多
The effect of ultraviolet(UV)radiation and biocide benzalkonium chloride(BKC)on fungal-induced corrosion of AA7075 induced by Aspergillus terreus(A.terreus)was deeply studied using analysis of biological activity,surf...The effect of ultraviolet(UV)radiation and biocide benzalkonium chloride(BKC)on fungal-induced corrosion of AA7075 induced by Aspergillus terreus(A.terreus)was deeply studied using analysis of biological activity,surface analysis,and electrochemical measurements.Results demonstrated that the planktonic and sessile spore concentrations decline by more than two orders of magnitude when UV radiation and BKC are combinedly used compared with the control.UV radiation can inhibit the biological activity of A.terreus and influence the stability of passive film of AA7075.Except for direct disinfection,the physical adsorption of BKC on the specimen can effectively inhibit the attachment of A.terreus.The combination of UV radiation and BKC can much more effectively inhibit the corrosion of AA,especially pitting corrosion,due to their synergistic effect.The combined application of UV radiation and BKC can be a good method to effectively inhibit fungal-induced corrosion.展开更多
文摘Triethanolammonium tetrachloronickelate was synhesized by a solid state reaction of triethanolamine hydrochloride with anhydrous nickel chloride. The compound undergoes a reversible thermochromism phase transition at ca.152 ℃. UV-visible, near-IR, IR spectra and elemental analysis results confirmed the structure of the product. It was deduced that thermochromism of the product is caused by the structural phase transition of the complex ion, NiCl 2- 4. The enthalpy change of phase transition for the product was 61.0 kJ/mol determinated by DSC.
文摘Organicinorganic hybridbis(diethylammonium)tetrachlorocuprate was synthesized by solid state synthesis at lowheating temperature.Thermochromism and the probability on solid state reactiom of the hybrid were investigated by IR,DSC,XRD,and(in situ)UVvisible spectra.Solid state synthesis has much higher yield (908%) than solution method (491%) and almost need not any solvent during reaction process.
基金National Natural Science Foundation of China(No.2275150)。
文摘To investigate the process optimizationof Cu-en/AP composite microspheres preparation via electrostatic spraying,and to reveal the effects of droplet properties and flow rate variations on the experimental results during the electrostatic spraying process,the prepared process parameters of Cu-en/AP composite microspheres by electrostatic spray method under the orthogonal experimental design simulated by ANSYS(Fluent).The influence of flow rate,solvent ratio,and solid mass on the experimental results is examined using a controlled variable method.The results indicate that under the conditions of a flow rate of 2.67×10^(-3)kg/s an acetone-to-deionized water ratio of 1.5∶1.0,and a solid mass of 200 mg,the theoretical particle size of the composite microspheres can reach e nanoscale.Droplet trajectories in the electric field remain stable without significant deviation.The simulation results show that particle diameter decreases with increasing flow rate,with the trend leveling off around a flow rate of 1×10^(-3)kg/s.As the solvent ratio increases(with higher acetone content),particle diameter initially decreases,reaching a minimum around a ratio of 1.5∶1.0 before gradually increasing.Increasing the solid mass also reduces the particle diameter,with a linear increase in diameter observed at around 220 mg.Cu-en/AP composite microspheres with nanoscale dimensions were confirmed under these conditions by the final SEM images.
基金supported by the Guangdong Basic and Applied Basic Research Foundation,China(No.2023A1515012146)the National Natural Science Foundation of China(No.52271083)+1 种基金the Fundamental Research Funds for the Central Universities,China(No.22qntd0801)the Shanghai Engineering Technology Research Centre of Deep Offshore Material,China(No.19DZ2253100)。
文摘The effect of ultraviolet(UV)radiation and biocide benzalkonium chloride(BKC)on fungal-induced corrosion of AA7075 induced by Aspergillus terreus(A.terreus)was deeply studied using analysis of biological activity,surface analysis,and electrochemical measurements.Results demonstrated that the planktonic and sessile spore concentrations decline by more than two orders of magnitude when UV radiation and BKC are combinedly used compared with the control.UV radiation can inhibit the biological activity of A.terreus and influence the stability of passive film of AA7075.Except for direct disinfection,the physical adsorption of BKC on the specimen can effectively inhibit the attachment of A.terreus.The combination of UV radiation and BKC can much more effectively inhibit the corrosion of AA,especially pitting corrosion,due to their synergistic effect.The combined application of UV radiation and BKC can be a good method to effectively inhibit fungal-induced corrosion.
