A high-temperature solid-state potentiometric sensor for nitrogen based on ceramic LaAl12O18N |
| |
| Authors: | T E WARNER D J FRAY A DAVIES |
| |
| Affiliation: | (1) Department of Mining and Mineral Engineering, University of Leeds, Leeds, LS2 9JT, UK;(2) Cookson Technology Centre, Sandy Lane, Yarnton Oxford, OX5 1PF, UK |
| |
| Abstract: | The nitrogen-sensing properties of LaAl12O18N are described for the first time. Positive e.m.f. measurements at high temperature across the cells  -Nb (N),  -Nb2N, -Al2O3, LaAl12O18N LaAl11O18 (or LaAl12O18N)LaAl12O18N, -Al2O3, -Nb2N,  -Nb4N3, were in agreement with PN2(-Nb2N, -Nb4N3)>PN2(-Nb(N), -Nb2N) for the idealized stoichiometric cell reaction -Nb4N3+2-Nb(N) 3-Nb2N, thus demonstrating the nitrogen-sensing property of these cells. The e.m.f. for a variety of cells with electrodes containing -V2N, -Nb2N, -Ta2N and  Ti2N , were consistent with the predicted equilibrium nitrogen partial pressures. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
