The indirect electro synthesis of p tolualdehyde was studied using Mn 3+ /Mn 2+ redox couple and Mn 2+ was changes into Mn 3+ on the Pb/Sb electrode.The effects of temperature,current density,elec...The indirect electro synthesis of p tolualdehyde was studied using Mn 3+ /Mn 2+ redox couple and Mn 2+ was changes into Mn 3+ on the Pb/Sb electrode.The effects of temperature,current density,electrolytic time on current efficiency,and the electrolytic and reaction conditions of oxidiazing p xylene were also studied.The results showed that the yields of p tolualdehyde were 74 90% and the current recovery was 65 50%.The reaction solution can be used repeatedly and no wastes were produced during the p tolualdehyde production process.展开更多
The H-bond promoted electrochemical[2+2+1]annulation of benzo[d]isothiazole 1,1-dioxides,Narylglycines and paraformaldehyde for the synthesis of various benzo[d]imidazo[1,5-b]isothiazole 5,5-dioxide derivatives under ...The H-bond promoted electrochemical[2+2+1]annulation of benzo[d]isothiazole 1,1-dioxides,Narylglycines and paraformaldehyde for the synthesis of various benzo[d]imidazo[1,5-b]isothiazole 5,5-dioxide derivatives under redox mediator,catalyst and electrolyte-free conditions was developed.展开更多
The precursor PbTi(OCH2CH3)6-y(acac)y for the mixed oxide PbTiO3 was synthesized by electrochemical dissolution of Lead and Titanium with a 1∶2 electricity quality in ethanol and acetyl-acetone solution. Nano-sized P...The precursor PbTi(OCH2CH3)6-y(acac)y for the mixed oxide PbTiO3 was synthesized by electrochemical dissolution of Lead and Titanium with a 1∶2 electricity quality in ethanol and acetyl-acetone solution. Nano-sized PbTiO3 powder was prepared by drying and calcining the xerogel from a direct sol-gel hydrolyzation of the precursor solution under pH of 8.5. The FTIR, TG-DTA, XRD and TEM were employed to characterize the structure of the precursor and nano-sized PbTiO3. The results showed that the optimized conditions for the preparation of nano-sized PbTiO3 were the electrolysis of the Lead plate and Titanium plate at 50 ℃ and 40 ℃ respectively under 0.03 mol·dm-3 Bu4NBr solution. The nano-sized PbTiO3 prepared by electrolysis exhibited a dispersive structure with an average diameter of 10 to 15 nm.展开更多
文摘The indirect electro synthesis of p tolualdehyde was studied using Mn 3+ /Mn 2+ redox couple and Mn 2+ was changes into Mn 3+ on the Pb/Sb electrode.The effects of temperature,current density,electrolytic time on current efficiency,and the electrolytic and reaction conditions of oxidiazing p xylene were also studied.The results showed that the yields of p tolualdehyde were 74 90% and the current recovery was 65 50%.The reaction solution can be used repeatedly and no wastes were produced during the p tolualdehyde production process.
基金financial support from Postgraduate Scientific Research Innovation Project of Hunan Province(No.CX20230949)。
文摘The H-bond promoted electrochemical[2+2+1]annulation of benzo[d]isothiazole 1,1-dioxides,Narylglycines and paraformaldehyde for the synthesis of various benzo[d]imidazo[1,5-b]isothiazole 5,5-dioxide derivatives under redox mediator,catalyst and electrolyte-free conditions was developed.
文摘The precursor PbTi(OCH2CH3)6-y(acac)y for the mixed oxide PbTiO3 was synthesized by electrochemical dissolution of Lead and Titanium with a 1∶2 electricity quality in ethanol and acetyl-acetone solution. Nano-sized PbTiO3 powder was prepared by drying and calcining the xerogel from a direct sol-gel hydrolyzation of the precursor solution under pH of 8.5. The FTIR, TG-DTA, XRD and TEM were employed to characterize the structure of the precursor and nano-sized PbTiO3. The results showed that the optimized conditions for the preparation of nano-sized PbTiO3 were the electrolysis of the Lead plate and Titanium plate at 50 ℃ and 40 ℃ respectively under 0.03 mol·dm-3 Bu4NBr solution. The nano-sized PbTiO3 prepared by electrolysis exhibited a dispersive structure with an average diameter of 10 to 15 nm.
