高Seebeck系数碳纤维水泥基复合材料（CFRC）在规模化能量转换收集，道路低能耗热融除雪和建筑健康监测传感器领域有重要应用。提高Seebeck系数与能量转化效率是其应用的前提，而确切的强化机理与方法尚未阐明。CFRC具有的高密度本征微观结构缺陷使其Seebeck效应强化机制与晶态材料有明显差异，有关CFRC-Seebeck效应强化的相关理论，迄今国内外也尚未报道。本课题前期研究发现微/纳米金属氧化物与水泥基体的界面可显著增强CFRC-Seebeck效应并提高电导率。在此基础上，本课题将定量化表征CFRC微观结构缺陷产生的多类型界面，研究界面类型、结构与分布对载流子散射和Seebeck效应的影响规律，阐明CFRC-Seebeck效应的多类型界面散射强化机理，并利用复合材料工艺和界面类型的散射强度差异与协同作用，获得CFRC-Seebeck效应的强化方法，为促进能源高效利用提供一种新途径。

Carbon fiber reinforced cement-based composites (CFRC) with high Seebeck coefficient are of considerable promise on mass energy harvesting, heating snow removal by low energy consumption and structural health monitoring sensors. Their Seebeck coefficient and thermoelectric conversion efficiency have to increase before them came into spread use. However, the enhanced mechanism and method of CFRC-Seebeck effect remain elusive. Since owning the intrinsic microscopic defects with high density, the enhanced mechanism of CFRC-Seebeck effect differs obviously from that of crystalline materials. The interrelated theories about strengthening of CFRC-Seebeck effect have also not been reported at home and abroad. Strengthening action of the interface between metal oxide micro/nano-particles and cement matrix has been found in our previous work, and the electrical conductivity of CFRC grow simultaneously. Based on it, in this project multi-type interfaces emerged by intrinsic microscopic defects of CFRC will be characterized quantificationally. The influences of the interface type, interface structure and distribution density on carrier scattering and Seebeck effect will be researched. Then, the strengthening mechanism of CFRC-Seebeck effect by the multi-type interfaces scattering can be explained. The evaluation method of CFRC-Seebeck effect is also established by taking advantage of materials processing, and the scattering intensity divergence and cooperation between the multi-type interfaces. The research results will provide a new way to elevate the efficiency of energy utilization.