Proof of Supervalent Doping in Olivine LiFePO4

被引：229

作者：

Wagemaker, Marnix ^{[1
]}

Ellis, Brian L. ^{[2
]}

Luetzenkirchen-Hecht, Dirk ^{[3
]}

Mulder, Fokko M. ^{[1
]}

Nazar, Linda F. ^{[2
]}

机构：

[1] Delft Univ Technol, Fac Sci Appl, Dept Radiat Radionuclides & Reactors, NL-2629 JB Delft, Netherlands

[2] Univ Waterloo, Dept Chem, Waterloo, ON N2L 3G1, Canada

[3] Berg Univ Wuppertal, Fachbereich C Phys, D-42097 Wuppertal, Germany

来源：

CHEMISTRY OF MATERIALS | 2008年 / 20卷 / 20期

关键词：

D O I：

10.1021/cm801781k

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A study was conducted to investigate the evidence of supervalent doping in olivine LiFePO4. Shoichiometric amounts of high purity Li 2CO3, FeC2O4·2H2O, along with other compounds were ball-milled with acetone for 6-18 hours in silicon nitride media, to prepare the samples. Powders were heated to 350°C for 10 hours in flowing Ar, reground, and heat-treated at 600°C in the same atmosphere for upto 8 hours. The results show that the dopant resides primarily on the Li site, while samples of Li1-xDxFePO4 showed refined dopant concentrations lower than intended.

引用

页码：6313 / 6315

页数：3

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