电容器电极用新型炭材料的研究进展

综述了活性炭电极材料的性质与电容器性能的关系,介绍了不同原料制备的活性炭、改性活性炭、活性炭纤维、炭纳米管及炭黑等用于电容器电极材料的研究进展。最后,阐述了电容器电极用炭材料的发展趋势。

水性聚氨酯涂料的改性技术与应用进展

简述了国内外水性聚氨酯的发展历程,重点介绍了水性聚氨酯涂料在环氧树脂改性、有机硅改性、有机氟改性、丙烯酸酯改性及纳米材料改性等不同改性方法中的研究进展,概述了其在木器涂料、皮革涂饰剂、汽车涂料及纸张涂料等领域的应用,并讨论了水性聚氨酯涂料的发展方向。

MgO and Au nanoparticle Co-modified g-C_(3)N_(4)photocatalysts for enhanced photoreduction of CO_(2)with H_(2)O

The photoreduction of CO_(2)to achieve high-value-added hydrocarbons under simulated sunlight irradiation is advantageous,but challenging.In this study,a series of MgO and Au nanoparticle-co-modified g-C_(3)N_(4)photocatalysts were synthesized and subsequently applied for the photocatalytic reduction of CO_(2)with H2O under simulated solar irradiation.The best photocatalytic performance was demonstrated by the Au and 3%MgO-co-modified g-C_(3)N_(4)photocatalysts with CO,CH_(4),CH3OH,and CH3CHO yields of 423.9,83.2,47.2,and 130.4μmol/g,respectively,in a 3-h reaction.We investigated the effects of MgO and Au as cocatalysts on photocatalytic behaviors,respectively.The characterizations and experimental results showed that the enhanced photocatalytic activity was due to the synergistic effect among the components of the ternary photocatalyst.The cocatalyst MgO can activate CO_(2)(adsorbed at the interface between the MgO and Au particles),and the Mg-N bonds formed in the MgO-CN nanosheets played an important role in the charge transfer.Meanwhile,the Au particles that were modified into MgO/g-C_(3)N_(4)can increase the absorption of visible light via the surface plasmon resonance effect and further reduce the activation energies of the photoreduction of CO_(2)using H2O.This study provided an effective method for the modification of traditional primary photocatalysts with promising performance for photocatalytic CO_(2)reduction.

高效节能卧式喷淋薄膜蒸发技术及装置

高效节能卧式喷淋薄膜蒸发装置是一种新型高效蒸发装置。蒸发强度大，传热系数高，处理草浆黑液蒸发强度可达18－25kg/m^2·h，处国际领先水平，蒸发相同水量时本蒸发器所需面积比板式少一半以上，因而可节省蒸发站投资，加上具有易于除垢，减缓腐蚀等特点，显示本技术具有的高效无害化生产的优越性。