Development of high-capacity porous carbon adsorbent for water adsorption heat pump

近年来，迫切需要发展创造、积累和节约能源的技术。低余热利用的一种可能的系统是水吸附热泵（WAHP）。在本研究中，我们的目标是开发一种用于WAHP的高容量多孔碳吸附剂，在低相对压力（WAHP的工作压力范围）下，其水吸附等温线表现出陡峭而大的吸收率。通过控制多孔碳材料的孔隙性质，在碳基体中掺杂氮原子。制备的氮掺杂多孔碳材料作为WAHP吸附剂，在低相对压力范围内的吸水量差是未掺杂多孔碳材料的5倍。

Recently, it is required to develop the technologies of creating, buildup, and saving of energy. One of the possible system for the utilization of low waste heat is the water adsorption heat pump (WAHP). In this study, we aimed to develop a high-capacity porous carbon adsorbent for WAHP, on which the water adsorption isotherm shows steep and large uptake at low relative pressure where is the operation pressure range of WAHP. The prepared porous carbon materials were controlled the pore properties and doped the nitrogen atoms into the carbon matrices. It was successful to develop the prepared N-doped porous carbon materials which show five times higher water adsorbed amount difference at low relative pressure range comparing with the non-doped porous carbon materials, as an adsorbent for WAHP.