共搜索到16877条信息,每页显示10条信息,共1688页。用时:0小时0分0秒828毫秒
J. Cent. South Univ. Technol. (2009) 16: 0236-0241 DOI: 10.1007/s11771-009-0040-4 Effect of doping Bi on oxygen evolution potential and corrosion behavior of Pb-based anode in zinc electrowinning...; Abstract: A new anodic material of ternary Pb-0.8%Ag-(0-5.0%)Bi alloy for zinc electrowinning was obtained by doping Bi. The anodic oxygen evolution potential, corrosion rate......
for printing circuitry and sulfate chromium electroplating[3]. Depending on the application, materials with low over potential for oxygen evolution reaction are required. Nevertheless, the study... potential for oxygen evolution is determined by the metal/metal oxide or the lower metal oxide/higher metal oxide couple[21]. As for IrO2 based oxide anodes, IrO2/IrO3 couple is generally concerned......
. At the very beginning of anodic polarization, the two anodes all exhibit higher potential of oxygen evolution reaction (OER) since the reaction is controlled by the transformation step of intermediates...: zinc electrowinning; oxygen evolution kinetics; electrochemical impedance spectroscopy; oxygen evolution reaction potential 1 Introduction The demand for energy-saving and higher standard of cathode......
......
as the potential oxygen evolution reaction electrocatalyst.It is found that there are micro/nano pits on the surface of etched amorphous Fe29CO27Ni23Si9 B12 ribbons.Various elements of HEAs bond with each other...Nanostructured amorphous Fe29Co27Ni23Si9B12 high-entropy-alloy:an efficient electrocatalyst for oxygen evolution reactionHongyan Wang1,Ran Wei1,Xiumin Li1,Xuli Ma2,Xiaogang Hao3,Guoqing Guan41......
sol-gel method (5.08 m2/g). The oxygen reduction reaction activity of the oxide in 0.1 mol/L KOH solution was studied using a rotating ring-disk electrode. In the tests, the initial potential of 0.88... oxygen electrocatalyst for efficient oxygen reduction and evolution reactions [J]. Journal of Solid State Chemistry, 2020, 282: 121119. DOI: 10.1016/j.jssc.2019. 121119. [9] JIANG San-ping......
potential of about 1.7 V. Key words: IrO2; nano-rods; sol-gel method; oxygen evolution reaction 减少温室气体排放的要求和化石能源资源的不断消耗,推动了可再生能源转化和储存技术的发展,如燃料电池[1]和锂离子电池[2]等.再生燃料电池是将氢氧燃料电池与水电解相结合的新型能源转化和储存技术,通过(2H2+O2→2H2O... on the catalyst samples. The transforming process of catalytic activity center ion pair Ir(III)/Ir(IV) takes place at electrode potential of about 0.83 V. Finally, linear sweep voltammetry reveals that the oxygen......
has a comparable onset potential and a higher diffusion-limiting current density than the commercial 20 wt% Pt/C catalyst in alkaline electrolyte. The oxygen reduction reaction mechanism catalyzed...-doped porous carbon@graphene sandwich-like structured composites as bifunctional electrocatalysts for oxygen reduction and evolution reactions [J]. Carbon, 2016, 106: 74-83. [33] CHEN Ping, WANG Li-kun......
electrode is lower than that of Pb-Ca-Sn electrode in the same anodic voltage.Moreover, the oxygen evolution potential on the former electrode is greater than that on the latter, and this means that Ce can increase the potential of oxygen evolution on Pb-Ca-Sn alloy.The AC impedance experiments show that Ce can also enhance the resistance of hydrogen evolution on Pb-Ca-Sn electrode, i.e., Ce can......
of photoinduced electrons from holes to achieve stronger photocatalytic activity. The highest photocatalytic oxygen evolution and PL Spectra intensity are achieved. When the concentration of Ta is 1.0...; Ta-doped; photocatalytic water splitting; oxygen evolution 氢能是人们期待的新的二次能源......