Effects of Na[sub 2]CO[sub 3] addition on the gas sensing characteristics of CuO/ZnO heterocontact

Journal Article · Sun May 01 04:00:00 EDT 1994 · Journal of the Electrochemical Society; (United States)

DOI:https://doi.org/10.1149/1.2054934· OSTI ID:7106014

Jung, Sang Jin; Ohsawa, Hiroshi; Nakamura, Yoshinobu; Yanagida, Hiroaki ^[1]; Hasumi, Kazuhisa ^[2]; Okada, Osamu ^[3]

---

1. Univ. of Tokyo (Japan). Dept. of Industrial Chemistry
2. Mikuni Co., Ltd., Kanagawa (Japan)
3. Osaka Gas Co., Ltd., Osaka (Japan)

Sensitive and selective carbon monoxide (CO) gas detection by a simple device is one of the most important research topics for safe environmental control. The gas sensing characteristics of CuO/ZnO heterocontacts are investigated. CuO/ZnO heterocontact, with Na[sub 2]CO[sub 3] added, showed selective CO gas sensing properties, while pure CuO/ZnO heterocontact showed higher sensitivity to H[sub 2] than to CO. It is suggested that the presence of a second phase containing Na[sup +] in CuO ceramic is essential for selective CO gas sensing by a heterocontact.

• OSTI ID: 7106014
• Journal Information: Journal of the Electrochemical Society; (United States), Journal Name: Journal of the Electrochemical Society; (United States) Vol. 141:5; ISSN JESOAN; ISSN 0013-4651
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION MONITORS
ALKALI METAL COMPOUNDS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONATES
CATALYTIC EFFECTS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRICAL PROPERTIES
ELEMENTS
HYDROGEN
INTERFACES
MEASURING INSTRUMENTS
MONITORING
MONITORS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
PHYSICAL PROPERTIES
SODIUM CARBONATES
SODIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZINC COMPOUNDS
ZINC OXIDES