一种新型无粘结剂电极的制备及电吸附脱盐性能研究

以椴木为前驱体、二氧化碳为活化剂,制备出具有一定强度、无需粘结剂的电极材料,同时可用作集流体。通过扫描电镜、X射线衍射、拉曼光谱和孔径分析等对材料的形貌和孔结构进行了分析,并使用电吸附脱盐装置测试了其电吸附脱盐性能。结果表明,该材料有大量的微孔结构,比表面积为1440m2/g,其电吸附脱盐能力随着溶液浓度的提高而升高,在溶液浓度为200、500、1000和2000 mg/L时,吸附量分别为2. 02、3. 76、6. 21和12. 42 mg/g。

Synthesis and Capacitive Deionization of a Novel Binder-free Electrodes

In this work a novel binder-free electrode material is prepared through carbon dioxide activation by using basswood as a precursor and it is also used as current collector. The morphology, structure, and pore properties are revealed by a variety of characterization methods, such as scanning electron microscopy, X-ray diffraction, Raman spectroscopy, nitrogen adsorption-desorption measurement. The capacitive desalination performance of the material was tested by capacitive desalination device. The results show that the material with a large number of microporous structure possesses specific surface area of 1440 m₂ g_-1. At the solution solubility of 200 mg L_-1, 500 mg L_-1, 1000 mg L_-1 and 2000 mg L_-1, the adsorption capacities were 2.02 mg g_-1, 3.76 mg g_-1, 6.21 mg g_-1 and 12.42 mg g_-1, respectively.