Скачать или смотреть Water Electrolysis Composite Graphite Electrodes III

An updated short video re: preparation/ performance of composite graphitic electrodes for water electrolysis. The candidate electrodes are being prepared using dammar gum binder with carbon black, graphite , halloysite nanotubular clay, silver (I) oxide (anode oxygen formation promoter), and g C3N4 components. The dammar gum was dissolved in turpentine (30% m/v) and filtered before use. The uniform paste was applied to the graphite template and left in the fume hood overnight to drive off the turpentine. The key is to pyrolyze the candidate electrode to increase conductivity ( dammar gum , at 200 deg C oxygen -free forms volatile decomposition products) and leaves behind solid residuals) and preserve porosity. We have been heating to 550 deg C / 2-3 hrs , but will go to 350 deg C with slower heating rate. We have seen preservation of composite on the graphite electrodes which can electrolyze water .