Both compositions and operating conditions are given: potassium pyrophosphate 250g/L, stannous sulfate 10-20g/L, cobalt sulfate 10-20g/L, brightener 100mL/L, pH8.5-9.5, temperature 35-50℃, cathode curent density D_k=0.5-2A/dm~2.anode: purified graphite plate with high density; agitation:cathode moving or buffeting;
In the technique transformation of sulphuric acid unit, new equipment such as LSB concentrated acid pump, tube aciddisperser, anodically protected tube heat exchanger and plate heat exchanger were adopted and the productivity has increased from 72 t/d to 93.5 t/d, power consumption decreased from 123 kW· h/t to 114 kW·h/t, utilization of capacity increased from 92.5% to 97.0 %.
The electrically assisted photocatalytic oxidation treatment of benzamide solution was studied with Ti plate as radical material and adopting solidified membrane Tio2/Ti photocatalyst prepared by sol-gel method and applying definite anode bias voltage to it.
It is necessary to select the catalyst with proper Pt loading when the anode of a direct-methanol fuel cell is prepared.
In this panel, field emission electrons are extracted directly from the cathode by the high anode voltage.
Instead of the traditional screen-printing method, both anode and cathode catalysts were pressed simultaneously and formed with the fabrication of nano-composite electrolyte by press method.
Maximum power densities 40 mW·cm-2 and 130 mW·cm-2 for the PEN configuration with a Mo-Ni-S-based composite anode, nano-composite electrolyte (Li2SO4+Al2O3) film and a NiO-based composite cathode were achieved at 600°C and 680°C, respectively.
Anode peak voltages (Eap) and their pH dependences were determined for the studied phenolic acids and flavonoids.
A set of 12-parameter rectangular plate element with high accuracy
Using the method of undetermined function, a set of 12 parameter rectangular plate element with double set parameter and geometry symmetry is constructed.
Their consistency error are O(h2), one order higher than the usual 12 parameter rectangular plate elements.
A fourth-order variational inequality of the second kind arising in a plate frictional bending problem is considered.
Recent developments of the ultra-wideband (UWB) planar antennas are reviewed, where the progress in UWB plate monopole antennas, UWB printed monopole antennas and the UWB printed slot antennas is introduced and compared.