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| 1 | 海洋钢结构阴极保护下钙镁沉积层的研究进展浅述显示文摘阴极保护仍然是海洋钢结构防腐蚀的一种重要措施,在其作用过程中所产生的钙镁沉积层可被视为一道无机涂层。由于钙镁沉积层的结构及致密程度是影响阴极保护效果的重要因素,因此阴极保护设计过程的关键在于如何获得理想的钙镁沉积层。从钙镁沉积层的形成机理,动力学规律,影响因素、作用及深海钙镁沉积层的研究现状等几个方面进行综述,为以后深海阴极保护设计提供参考方向。 | 任杰 王正泉 徐玮辰 李言涛 孙玮璐 | 2020 | 材料保护2020，53，8： | 3 |
| 2 | Influence of Dissolved Oxygen on the Protectiveness and Morphological Characteristics of Calcareous Deposits with Galvanostatic Polarization显示文摘The influence of dissolved oxygen on calcareous deposits formed under galvanostatic polarization mode was studied.When the dissolved oxygen concentration was less than 7 mg L^(-1),the cathodic protection potential showed a plateau at the initial polarization,and then quickly shifted negatively.While the dissolved oxygen was more than 9 mg L^(-1),the potential shifted negatively in a linear form.After 168 h of polarization,the final protection potential shifted negatively with the decreasing dissolved oxygen concentration.The deposition progress was monitored by electrochemical impedance spectroscopy,and only one single loop was found in Nyquist diagram,indicating deposits of ineffective protectiveness precipitation under the experimental conditions.The protection factor of deposits increased with the decreasing dissolved oxygen concentration which was detected by linear polarization resistance technique.The cathodic electrochemical reaction could change very shortly from oxygen reduction to hydrogen evolution after cathodic protection under very low dissolved oxygen concentration,such as 1 mg L^(-1),resulting in the hydrogen bubbling from the metallic surface and the decrease of deposits protection factor.Observation by scanning electron microscopy and X-ray diffraction analysis demonstrated that the deposits were mainly of calcite under the experimental conditions,and that dissolved oxygen had no effect on the crystalline types of calcium carbonate. | LI Chengjie DU Min GAO Rongjie | 2017 | Journal of Ocean University of China2017，16，2： | 2 |
| 3 | 锯齿板状阴极电化学除垢工艺优化及机理研究显示文摘针对电化学除垢系统处理工业循环冷却水时能耗高的问题,采用锯齿板状阴极使系统能耗低至6.82 kW·h/(kg CaCO_(3))。实验和数值模拟结果表明,系统能耗降低是因为锯齿板状阴极的尖端区域水垢的沉积速率快、垢层与阴极结合力弱,使得垢层容易脱落;同时垢层覆盖锯齿状阴极尖端区域后,垢层沉积反应逐渐由尖端区域向平缓区域转移,大大延长了阴极失活时间,使得电化学除垢系统能耗降低。因此,通过尖端区域和平缓区域的协同作用,可以有效缓解阴极失活导致的高能耗问题。 | 黄亚鹏 赵世鑫 王立达 刘贵昌 贺永鹏 邓海涛 刘锦程 孙文 | 2023 | 现代化工2023，43，2： | 1 |
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