摘要
使用安全无污染前体,通过改进的溶胶-凝胶法合成了Mn、Al共掺杂钙基储能材料,对材料的各项储能性能进行了研究,并考察了初步放大合成对材料性能的影响。结果表明,乙酸钙前体合成的共掺杂材料Ca100Mn15Al10-Ac在1000次储能循环中表现出优异的稳定性,性能仅衰减23.2%,且主要集中在前期,其平均光吸收率也达到70.1%,通过形貌分析发现,共掺杂材料在循环过程中演化出的稳定多孔结构有效抑制性能衰减。材料的初步放大合成以及添加微晶纤维素黏结剂不会对Ca100Mn15Al10-Ac的稳定性造成负面影响,有利于后续大规模制备。
Mn and Al co-doped calcium-based energy storage materials were synthesized using safe and non-toxic precursors through a modified sol-gel method.The energy storage performance of the materials was carefully studied,and the effects of preliminary scale-up synthesis on material properties were examined.The results demonstrate that the co-doped material Ca100Mn15Al10-Ac synthesized from calcium acetate exhibited excellent stability during 1000 energy storage cycles with only 23.2%performance degradation(mainly occurring in the initial stage),and the average solar absorptance reaches 70.1%.Morphology analysis revealed that the evolution of stable porous structure during cycling effectively suppressed performance decay.The initial scale-up synthesis of the material and the addition of microcrystalline cellulose binder will not have a negative impact on the stability of Ca100Mn15Al10-Ac,which is conducive to subsequent large-scale preparation.
作者
刘辉
魏进家
LIU Hui;WEI Jinjia(School of Chemical Engineering and Technology,Xi’an Jiaotong University,Xi’an 710049,Shaanxi,China)
出处
《化工学报》
北大核心
2025年第11期6018-6026,共9页
CIESC Journal
基金
国家重点研发计划项目(2021YFF0500400)
陕西省重点研究计划项目(2022GXLH-01-08)
陕西省秦创原“科学家+工程师”队伍建设项目(2022KXJ-179)。
关键词
太阳能
钙基材料
储能
吸附
稳定性
solar energy
calcium-based materials
energy storage
adsorption
stability
