CaO/CaCO3 thermochemical heat storage performance of CaO-based micrometre-sized tubular composite
CaO/CaCO3 thermochemical heat storage performance of CaO-based micrometre-sized tubular composite
复制标题
CaO基微米管状复合材料的CaO/CaCO3热化学蓄热性能
DOI：
10.1016/j.enconman.2020.113222
复制
发表时间：
2020-10
影响因子：
10.4
通讯作者：
Liu Wenqiang
中科院分区：
文献类型：
--
作者：
Sun Hao;Li Yingjie;Yan Xianyao;Wang Zeyan;Liu Wenqiang
为了改善CaO基材料的蓄热性能随CaO/CaCO 3蓄热循环次数的衰减，采用模板法制备了CaO基微米级管状复合材料，并分析了其在高碳化压力下的性能。结果表明，当掺杂2.5wt%Al2O3和1wt%CeO2时，复合材料具有优异的储热性能。在30次循环后，复合材料的储热容量仅下降2%，有效转换率和能量密度分别高达0.92和2924 kJ/kg。对这些复合材料的形态学分析表明，存在直径在5-10 μm范围内的多孔微管。在循环蓄热过程中，微管壁中的Ca 12 Al 14 O33和CeO 2颗粒有效地稳定了结构。因此，新型复合材料在CaO/CaCO 3基蓄热过程中具有良好的应用前景。
To ameliorate the decay in heat storage performance of CaO-based materials with the number of CaO/CaCO3heat storage cycles, in this study, we used the template method to fabricate CaO-based micrometre-sized tubular composites containing CaO, Al2O3, and CeO2and analysed their performance at a high carbonation pressure. It was found that these composites, when doped with 2.5 wt% Al2O3and 1 wt% CeO2, exhibited an excellent heat storage performance. The heat storage capacity of the novel composites decreased by only 2% over 30 heat storage cycles, and their effective conversion and energy density were as high as 0.92 and 2924 kJ/kg, respectively, after 30 cycles. Morphological analysis of these composites indicated the presence of porous microtubules with diameters in the range of 5–10 μm. Ca12Al14O33and CeO2grains in the microtube walls effectively stabilised the structure during cyclic heat storage. Therefore, the novel composites have promising applications in CaO/CaCO3-based heat storage processes.
登录
查看更多内容
影响因子：
10.4
作者：
E. Tapachès;D. Salas;M. Perier-Muzet;S. Mauran;D. Aussel;N. Mazet
通讯作者：
E. Tapachès;D. Salas;M. Perier-Muzet;S. Mauran;D. Aussel;N. Mazet
影响因子：
10.4
作者：
Bravo, R.;Ortiz, C.;Friedrich, D.
通讯作者：
Friedrich, D.
影响因子：
11.4
作者：
Shengping Wang;Shasha Fan;Lijing Fan;Yujun Zhao;Xinbin Ma
通讯作者：
Shengping Wang;Shasha Fan;Lijing Fan;Yujun Zhao;Xinbin Ma
影响因子：
15.1
作者：
Ke Wang;Feng Gu;P. Clough;P. Zhao;E. Anthony
通讯作者：
Ke Wang;Feng Gu;P. Clough;P. Zhao;E. Anthony
影响因子：
8.4
作者：
B. Sarrión;P. E. Sánchez-Jiménez;A. Perejón;L. Pérez-Maqueda;J. Valverde
通讯作者：
B. Sarrión;P. E. Sánchez-Jiménez;A. Perejón;L. Pérez-Maqueda;J. Valverde