Zhou Qing-ming

Latest advance on carbon electrode materials for all vanadium redox flow battery

Recently, electrode materials for vanadium redox flow battery, which acts as one kind of large-scale energy storage systems, have been extensively studied and some progress has been achieved. In this review, we briefly introduce the requirements of electrode materials for VRB, and summarize the latest development on electrode materials. Carbon electrodes and their modification are mainly discussed: surface modification, deposition with metals and transitional metal oxides, and doping the carbon materials. Finally, further directions for electrodes of VRBs are pointed out.

Effect of cutting density on qualities of cutting plant for low branches of ramie

Four ramie varieties were selected as materials to investigate the correlation between cutting density of low branches and the following properties:survival rate,dry root weight,stem height recruitment,dry leaf weight and branch characteristics.Significant negative correlation could be observed between cutting density and dry root weight,stem height recruitment,dry leaf weight,branch length.Negative correlation could be observed between cutting density and quantities of branches,dry branche weight.And a significant positive correlation existed between the density and the lowest branch.No significant correlation was found between different varieties.Taking all the factors into consideration,it was learned that the optimum cutting density should be about 10 cm×10 cm.