Calcite CaCO3 has been electrocrystallized on stainless steel substrates by the galvano-static cathodic reduction of aqueous calcium bicarbonate solutions. The deposition is controlled by pH changes occurring close to the cathode due to electrogeneration of base. The deposit morphology varies from facetted rhombs observed at low (1-20 mA cm(-2)) current densities to corner-rounded particles observed at high (40 mA cm(-2)) current densities. (C) 2002 Elsevier Science Ltd. All rights reserved.
展开▼
机译：通过碳酸氢钙水溶液的恒电阴极还原，方解石CaCO3已在不锈钢基板上进行了电结晶。由于碱的产生，通过在阴极附近发生的pH变化来控制沉积。沉积物形态从在低（1-20 mA cm（-2））电流密度下观察到的多面菱形变化到在高（40 mA cm（-2））电流密度下观察到的圆角颗粒。 （C）2002 Elsevier Science Ltd.保留所有权利。
展开▼
