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Synthesis and Electrocatalytic Proton Reduction Properties of a Polypyridine Ligand Iron Complex
Rong Bingying, Liu He, Hui Yu, Song Lijuan, Zhong Wei
Abstract448)   HTML    PDF (2493KB)(340)      
An iron complex based on polypyridyl ligands was synthesized and characterized. The Electrochemisty of this complex showed that it exhibits two reduction peaks and two oxidation peaks in which the former assigned to FeIII/FeII and FeII/FeI, respectively. The performance of electrocatalytic proton reduction of the complex was examined via using different strength acids (acetic acid, trifluoroacetic acid and tetrafluoroboric acid) as proton sources. From the cyclic voltammograms, we can conclude that the protons catalyzed by different strength acids possess one common feature, that when 1 equivalent of proton source is added, the first reduction peak current intensity increases. The subsequent addition of proton source led to increase slowly of the current intensity with the increase of proton concentration until the effect it tended to stabilize. When tetrafluoroboric acid was used as the proton source, two new reduction peaks appeared, and the peak current of the new reduction peak increased with the increase of the normal concentration of proton source. This shows that when strong acid is used as a proton source, the effect of the electrocatalytic hydrogen production is more obvious.
2020, 33 (2): 1-6. DOI: 10.3969/j.issn.1006-396X.2020.02.001
Refinery Residual Sludge Reduction Technologies by Using Multi-Function Microbe
ZHANG Zhong-zhi, ZHONG Wei-zhang, MU Hong-yan
Abstract958)      PDF (1237KB)(558)      
The refinery residual sludge reduction using multi-function microbe,which consists of mixed yeast strains,photosynthetic bacteria and mixed bacteria was studied. After a period of research time,the excess sludge reduction experiment shows that function microbe was improved the reduced effect of excess sludge significantly.The results show that compared with blank test,MLSS removed rate of the sludge are increased by 13.81% for mixed yeast strains,by 30.58% for mixed photosynthetic strains and by 37.94% for mixed microflora.Sedimentation performance of excess sludge is improved after the activity of the multi-function microbe.The pH value is all gradually reduced.The effect of multi-function microbe degeneration changed the component of petroleum obviously.It strengthened the degeneration degree of normal hydrocarbons that have low and moderate carbon.The multi-function microbe environment is favorable to degenerate the high-carbon hydrocarbons into the low-carbon hydrocarbons.
2010, 23 (1): 23-26. DOI: 10.3696/j.issn.1006-396X.2010.01.006