Pr5Mo3O16+ : A New Anode Material for Solid Oxide Fuel Cells

被引：21

作者：

Istomin, S. Ya. ^{[1
]}

Kotova, A. I. ^{[1
]}

Lyskov, N. V. ^{[2
]}

Mazo, G. N. ^{[1
]}

Antipov, E. V. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Moscow 119991, Russia

[2] Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka 142432, Moscow Oblast, Russia

来源：

RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2018年 / 63卷 / 10期

基金：

俄罗斯科学基金会;

关键词：

praseodymium molybdate; high-temperature electrical conductivity; thermal expansion coefficient; solid oxide fuel cells; ND5MO3O16; CATHODE;

D O I：

10.1134/S003602361810008X

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The thermomechanical and electrical conductivity properties of praseodymium molybdate Pr5Mo3O16 + prepared by a solid-phase method were studied. The electrical conductivity of praseodymium molybdate samples measured at temperatures in the range 373-1173 K with the oxygen partial pressure in the gas of 10(-3) to 0.21 atm was found to increase from similar to 10(-7) to similar to 10(-2) S/cm and to be almost independent of oxygen pressure. It is for the first time that electrical conductivity a reductive atmosphere (Ar/H-2 5%) was found to increase from 0.1 to 1.2 S/cm in the same temperature range. Studies of the chemical stability of Pr5Mo3O16 + with respect to solid electrolytes showed the absence of chemical reactions with GDC at 1273 K and with YSZ at 1223 K. The combination of these properties evidences for the potential of praseodymium molybdate for use as an anode material for solid oxide fuel cells (SOFCs).

引用

页码：1291 / 1296

页数：6

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