Solid ionic conductor/semiconductor junctions for chemical sensorsS. Bredikhin; J. Liu; W. Weppner · 1993

Limiting current oxygen sensors for the percentage to ppm rangeJ. Liu; W. Weppner · 1997

Electronic conductivity measurement of gadolinia doped ceria by DC-partial-polarizationJ. Liu; W. Weppner · 1999

Kinetic principles for new types of solid state ionic gas sensorsB.Y. Liaw; J. Liu; A. Menne; W. Weppner · 1992

Limiting-current chlorine gas sensor based on β″-alumina solid electrolyteJ. Liu; W. Weppner · 1992

ϑ-Sensors: A new concept for advanced solid-state ionic gas sensorsJ. Liu; W. Weppner · 1992

Investigation of solid sodium reference electrodes for solid-state electrochemical gas sensorsH. Schettler; J. Liu; W. Weppner; R. A. Huggins · 1993