共搜索到4118条信息,每页显示10条信息,共412页。用时:0小时0分0秒343毫秒
Co-intensification of gold leaching with heavy metals and hydrogen peroxide YANG Yong-bin(杨永斌), LI Qian(李 骞), JIANG Tao(姜 涛), GUO Yu-feng(郭宇峰), LI Guang-hui(李光辉), XU Bin(许 斌) School... to its electrochemical nature by using anodic intensifiers of heavy metal ions (Pb2+, Bi3+, Tl+, Hg2+ and Ag+) on the basis of hydrogen peroxide assistant leaching on three different types of materials......
(EX) salt was the most widely used collector in sulfide mineral flotation and emission of flotation tailings with residual EX was harmful to environment. In this work, hydrogen peroxide (H2O2... to carbon disulfide fast at pH value <3.0, but the reaction of hydrolysis is undetectable at pH value >3.0 during test time.Key words:ethyl-xanthate; thiosulfate; hydrogen peroxide; UV-visible......
A new cathode using CeO2/MWNT for hydrogen peroxide synthesis through a fuel cell XU Yuan1,XU Fuyuan1,CHEN Yingwen1,ZHU Shemin2,SONG Tianshun1,SHEN Shubao1 (1.National Engineering Research Centre... CeO2/MWNT (multi-walled carbon nanotube) was prepared by chemical deposition method and was applied to prepare the cathode of fuel cell for hydrogen peroxide synthesis. Effect of catalyst loading......
of hydrogen peroxide in 1 mol/L NaOH solution was evaluated by voltammetric techniques.Both linear scan voltammetric and chronoamperometric data present significantly large steady-state reduction current density of the hydrogen peroxide electroreduction on the prepared Pd/Ti catalyst.The results show that the prepared Pd/Ti catalyst is an effective electrocatalyst for the electroreduction......
Pulsed electrodeposition of hydroxyapatite on titanium substrate in solution containing hydrogen peroxide CHEN Xing-yu(陈星宇), ZHAO Zhong-wei(赵中伟), CHEN Ai-liang(陈爱良), LI Hong-gui(李洪桂) School..., such as -1.0 V (vs SCE), and there is not many coatings on the substrate. The combination of pulse electrodeposition and addition of hydrogen peroxide can assuredly improve the physico-chemical properties......
A new cathode using CeO2/MWNT for hydrogen peroxide synthesis through a fuel cell徐夫元1,宋天顺1,徐源1,陈英文1,祝社民2,沈树宝11. National Engineering Research Centre for Biochemistry Nanjing University of Technology2... by chemical deposition method and was applied to prepare the cathode of fuel cell for hydrogen peroxide synthesis.Effect of catalyst loading, flow rate of aqueous solution, and KOH concentration......
Preparation of Ce0.65Zr0.35O2 by co-precipitation: The role of hydrogen peroxide黄利华1,2,陈山虎3,朱艺3,龚茂初3,陈耀强1,31. Department of Architecture and Environment,Sichuan University2. Insititute of Environment and Resources,Southwest University of Science and Technology3. Key Laboratory of Green Chemistry & Technology of the Ministry of Education摘 要:The effect......
Preparation of Ce0.65Zr0.35O2 by co-precipitation: The role of hydrogen peroxide黄利华1,2,陈山虎3,朱艺3,龚茂初3,陈耀强1,31. Department of Architecture and Environment,Sichuan University2. Insititute of Environment and Resources,Southwest University of Science and Technology3. Key Laboratory of Green Chemistry & Technology of the Ministry of Education摘 要:The effect......
reduction of oxygen and raise the rate of electrochemical step of the cathodic reduction of oxygen. Addition of a certain amount of hydrogen peroxide is confirmed to be an effective way for intensification of cathodic process on gold electrode. Active potential range and current peak on anodic dissolution are enlarged when being co-intensified with Hg2+ and hydrogen peroxide. Co-intensifying effect may......
Au nanoparticles decorated graphene/nickel foam nanocomposite for sensitive detection of hydrogen peroxideXiaojuan Wang1,Xinli Guo1,2,Jian Chen1,Chuang Ge1,Hongyi Zhang1,Yuanyuan Liu1,Li Zhao1,Yao... microscope, ultraviolet visible spectroscopy and chemical workstation. The asprepared AuNPs@Gr/NiF nanocomposite was used as the electrode to construct a chemical sensor for the detection of hydrogen......