Alternate Cathode Materials for Determination of Oxygen Diffusion Rate and Reduction-Oxidation Potential in a Soil Environment

电化学研究使用替代电极材料更完整和不受土壤化学和土壤微生物活动的综合影响。具体目标包括：研究石墨复合材料和稀土氧化物电极在溶液中以及在好氧和厌氧土壤环境中电化学稳定性和可重复性的电化学行为；表征上述电极在溶液和土壤环境中的电化学寿命；并评估这些类型的电极的可行性，作为土壤环境中降解有机化合物的生物活性的指标。

Electrocheimical studies using alternate electrode materials which are more integral and impervious to the combined effects of the soil chemistry and soil based microbial activity. Soecific objectives include: Investigate the electrochemical behavior of graphite composite and rare-earth oxide electrodes in the solution phase as well as in both aerobic and anaerobic soil environments with regard to electro-chemical stability and reproducibility; Characterize the electrochemical lifetime of the aforementioned electrodes in both the solution phase and in soil environments; and Evaluate the viability of these types of electrodes as in ditu indicators for biological activity responsible for degrading organic compounds in soil environments.