锂(药物)
碳化作用
热重分析
解吸
材料科学
反应速率常数
反应级数
扫描电子显微镜
反应机理
化学工程
化学
物理化学
无机化学
吸附
动力学
催化作用
有机化学
复合材料
医学
物理
工程类
内分泌学
量子力学
作者
Daniela González-Varela,Brenda Alcántar-Vázquez,Heriberto Pfeiffer
标识
DOI:10.1016/j.jmat.2017.12.004
摘要
Lithium nickelate (LiNiO2) was synthesized using the lithium excess method, and then characterized by X-ray diffraction, scanning electron microscopy and N2 adsorption-desorption. Finally, differential thermal and thermogravimetric analyses were performed in CO2 presence, at high temperatures. Results show that LiNiO2 is able to react with CO2 through a complex structural evolution process, where lithium atoms are released to produce Li2CO3, while some nickel atoms are rearranged on different Li1-xNi1+xO2 crystalline phases. LiNiO2-CO2 reaction kinetic parameters were determined assuming a first-order reaction, where kinetic constants tended to increase as a function of temperature. However, kinetic constant values did not follow a linear trend. This atypical behavior was attributed to LiNiO2 sintering and crystalline evolution performed as a function of temperature.
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