Laboratory studies showed that addition of about 0.5%(in mass)Li_(2)CO_(3).to the anode used in an aluminium electrolysis cell gave increased wetting of the anode by the cryolite-alumina melt,increased critical curren...Laboratory studies showed that addition of about 0.5%(in mass)Li_(2)CO_(3).to the anode used in an aluminium electrolysis cell gave increased wetting of the anode by the cryolite-alumina melt,increased critical current density and reduced anodic overvoltage.The lithium carbonate then acted as a catalyst for the oxidation reaction between the anode carbon and the oxide-containing ions in the melt.Anode paste containing lithium carbonate has been employed in Chinese aluminium smelters with 62 kA HSS cells.This lead to improved current efficiency,reduced cell voltage and energy consumption,as well as fewer anode effects per day.展开更多
In order to establish a simple,sensitive,and fast reliable detection method to determine the magnolol,FeWO4 nanoflower was synthesised through a solvothermal technique and FeWO4 nanoflower modified carbon paste electr...In order to establish a simple,sensitive,and fast reliable detection method to determine the magnolol,FeWO4 nanoflower was synthesised through a solvothermal technique and FeWO4 nanoflower modified carbon paste electrode（CPE） was developed.The voltammetric behavior of magnolol on the modified electrodes was studied using cyclic voltammetry（CV）,linear sweep voltammetry（LSV）,and differential pulse voltammetry（DPV）.The experimental results showed that the modified electrode remarkably enhanced the electrochemical response of the magnolol and exhibited a wide linear range for determination of the magnolol from 1.0×10-7 to 1.0×10-4 mol/L with a low detection limit of 5.0×10-8 mol/L.展开更多
基金Supported by the National Natural Science Foundation of China。
文摘Laboratory studies showed that addition of about 0.5%(in mass)Li_(2)CO_(3).to the anode used in an aluminium electrolysis cell gave increased wetting of the anode by the cryolite-alumina melt,increased critical current density and reduced anodic overvoltage.The lithium carbonate then acted as a catalyst for the oxidation reaction between the anode carbon and the oxide-containing ions in the melt.Anode paste containing lithium carbonate has been employed in Chinese aluminium smelters with 62 kA HSS cells.This lead to improved current efficiency,reduced cell voltage and energy consumption,as well as fewer anode effects per day.
基金Funded by the National Natural Science Foundation of China(Nos.21461008 and 21465009)the Open Foundation of Key Laboratory of Biologic Resources Protection and Utilization of Hubei Province,Forestry Key Discipline(No.PKLHB1303)the Hubei University for Nationalities(No.MY2009B007)
文摘In order to establish a simple,sensitive,and fast reliable detection method to determine the magnolol,FeWO4 nanoflower was synthesised through a solvothermal technique and FeWO4 nanoflower modified carbon paste electrode（CPE） was developed.The voltammetric behavior of magnolol on the modified electrodes was studied using cyclic voltammetry（CV）,linear sweep voltammetry（LSV）,and differential pulse voltammetry（DPV）.The experimental results showed that the modified electrode remarkably enhanced the electrochemical response of the magnolol and exhibited a wide linear range for determination of the magnolol from 1.0×10-7 to 1.0×10-4 mol/L with a low detection limit of 5.0×10-8 mol/L.
