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Application of synthetic hureaulite as a new precursor for the synthesis of lithiophilite nanoparticles
Solid State Sciences ( IF 3.5 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.solidstatesciences.2020.106469
Chuchai Sronsri , Kongpop U-yen , Wanpasuk Sittipol

Abstract Plate-like hureaulite is successfully synthesized via a simple precipitation technique, and its vibrational and thermal behaviors are investigated. Its composition stabilizes at up to 165 °C and decomposes to Mn2P2O7 and Mn3(PO4)2 with different morphologies. Three thermal processes correspond to the first and second dehydrations, and polycondensation. However, the second dehydration shows two characteristics, and hence the deconvolution function is employed, which indicates two different water types in the crystal structure. Olivine-structured lithiophilite with nanosize is obtained from the thermal decomposition of the hureaulite precursor. The relationship between thermal and vibrational data is studied and the results are in agreement with each other. The factor-group analysis of hureaulite is also investigated by analyzing [PO3(HO)]2–, PO43–, and H2O. X-ray diffraction is applied for the sample structure determination. The obtained peaks and the corresponding lattice parameters are also found in agreement with the standard databases. The average crystallite sizes of synthesized compounds are determined by using the Scherrer equation, whereas the metal compositions are determined by using atomic spectrophotometers.

中文翻译:

合成紫榴石作为合成亲锂石纳米粒子的新前驱体的应用

摘要 通过简单的沉淀技术成功合成了片状杜纹石,并对其振动和热行为进行了研究。其成分在高达 165 °C 时稳定并分解为不同形态的 Mn2P2O7 和 Mn3(PO4)2。三个热过程对应于第一和第二脱水以及缩聚。然而,第二次脱水显示出两个特征,因此使用了反卷积函数,这表明晶体结构中有两种不同的水类型。橄榄石结构的纳米级亲锂石是从赫瑞石前驱体的热分解中获得的。研究了热数据和振动数据之间的关系,结果彼此一致。还通过分析 [PO3(H2O)]2-、PO43- 和 H2O 来研究杜纹石的因子组分析。X 射线衍射用于样品结构测定。获得的峰和相应的晶格参数也与标准数据库一致。合成化合物的平均晶粒尺寸通过使用谢勒方程确定,而金属成分通过使用原子分光光度计确定。
更新日期:2020-12-01
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