Electrical Conductivity and Ammonia Sensing Characteristics of Nanocrystalline Silver Molybdates Synthesized by Solution Chemistry Route

Author

Misra, Sunasira ; Jayaraman, V. ; Gnanasekaran, T.

Author_Institution

Dept. of Chem., C.V. Raman Coll. of Eng., Bhubaneswar, India

fYear

2011

fDate

8-10 Dec. 2011

Firstpage

1

Lastpage

6

Abstract

A soft chemical method has been developed for the synthesis of nano-crystalline powders of silver molybdates including Ag₆Mo₁₀O₃₃ and Ag₂Mo₂O₇. Electrical conductivity, silver ion transport number and gas sensing characteristics of Ag₆Mo₁₀O₃₃ were measured. This compound was found to sense selectively ammonia at 503 K. Above 503 K, it has significant cross sensitivity to petroleum gas (PG). Ag₂Mo₂O₇ showed sensitivity of about 46 % towards 100 vppm of ammonia at 623 K whose detailed results are reported in this paper.

Keywords

ammonia; electrical conductivity; gas sensors; nanofabrication; nanoparticles; nanosensors; silver compounds; Ag₂Mo₁₀O₃₃; Ag₂Mo₂O₇; NH₃; ammonia sensing characteristics; electrical conductivity; gas sensing characteristics; nanocrystalline powder synthesis; nanocrystalline silver molybdate; petroleum gas; silver ion transport number; soft chemical method; solution chemistry route; temperature 503 K; Chemicals; Conductivity; Ions; Sensitivity; Silver; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanoscience, Technology and Societal Implications (NSTSI), 2011 International Conference on

Conference_Location

Bhubaneswar

Print_ISBN

978-1-4577-2035-2

Type

conf

DOI

10.1109/NSTSI.2011.6111791

Filename

6111791