Searching for novel materials via 4f chemistry
来源期刊：JOURNAL OF RARE EARTHS2019年第1期
论文作者：Congting Sun Keyan Li Dongfeng Xue
文章页码：1 - 10
摘 要：4f chemistry studies the chemical bonding characteristics of fifteen lanthanide （Ln） elements in the periodic table and their wide applications in materials sciences and engineering, which forms the scientific fundamentals ofⅥperiodic elements in the periodic table of elements. Orbital hybridization modes of Ln elements clarify their chemical bonding nature in all reaction systems. Wide coordination number （CN） option, ranging from 2 to 16, is the reason why Ln elements are the treasure of new materials, therefore, searching for novel materials may be well carried out via the rational design of coordination environment of central Ln cations to stabilize their variable energy states. Balance utilization of Ln elements is dependent on their coordination architecture in the crystallographic frame, Ln elements can be replaced by non-Ln elements when CN <10, and when CN≥10 expensive Ln elements can be replaced by those cheaper ones.
Congting Sun1，Keyan Li2，Dongfeng Xue1
1. State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences2. State Key Laboratory of Fine Chemicals,PSU-DUT Joint Center for Energy Research,School of Chemical Engineering,Dalian University of Technology
摘 要：4f chemistry studies the chemical bonding characteristics of fifteen lanthanide （Ln） elements in the periodic table and their wide applications in materials sciences and engineering, which forms the scientific fundamentals ofⅥperiodic elements in the periodic table of elements. Orbital hybridization modes of Ln elements clarify their chemical bonding nature in all reaction systems. Wide coordination number （CN） option, ranging from 2 to 16, is the reason why Ln elements are the treasure of new materials, therefore, searching for novel materials may be well carried out via the rational design of coordination environment of central Ln cations to stabilize their variable energy states. Balance utilization of Ln elements is dependent on their coordination architecture in the crystallographic frame, Ln elements can be replaced by non-Ln elements when CN <10, and when CN≥10 expensive Ln elements can be replaced by those cheaper ones.
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