TY - GEN
T1 - The enhanced H2S sensing behavior of Ag-doped porous SnO 2 nanopowders prepared by template method
AU - Li, Chao
AU - Xue, Haiyan
AU - Zhu, Youqi
AU - Wang, Yuting
PY - 2011
Y1 - 2011
N2 - Ag-doped porous SnO2 nanopowders were synthesized via a facile glucan-assisted template method combined with subsequent calcinations. Morphology, crystal structure, and H2S gas sensing properties of pure and Ag-doped porous SnO2 nanopowders were investigated. in comparison with undoped SnO2 nanopowders, the Ag-doped porous SnO2 nanopowders demonstrated enhanced H2S sensing behavior with high sensitivity, short response and recovery time, relatively low response concentration of 50 ppm, and good selectivity. The dramatic improvement in H2S gas sensing characteristics was explained in terms of rapid gas diffusion onto the entire sensing surface due to the less-agglomerated and porous structure of SnO2 nanopowders and the catalytic effect of doped-Ag element. The main objective of this research is to develop a new method to introduce catalysts on gas-sensing materials with less-agglomerated and porous structure.
AB - Ag-doped porous SnO2 nanopowders were synthesized via a facile glucan-assisted template method combined with subsequent calcinations. Morphology, crystal structure, and H2S gas sensing properties of pure and Ag-doped porous SnO2 nanopowders were investigated. in comparison with undoped SnO2 nanopowders, the Ag-doped porous SnO2 nanopowders demonstrated enhanced H2S sensing behavior with high sensitivity, short response and recovery time, relatively low response concentration of 50 ppm, and good selectivity. The dramatic improvement in H2S gas sensing characteristics was explained in terms of rapid gas diffusion onto the entire sensing surface due to the less-agglomerated and porous structure of SnO2 nanopowders and the catalytic effect of doped-Ag element. The main objective of this research is to develop a new method to introduce catalysts on gas-sensing materials with less-agglomerated and porous structure.
KW - Doping
KW - Gas sensing
KW - Porous
KW - SnO nanopowders
UR - http://www.scopus.com/inward/record.url?scp=79960783907&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.295-297.337
DO - 10.4028/www.scientific.net/AMR.295-297.337
M3 - Conference contribution
AN - SCOPUS:79960783907
SN - 9783037851944
T3 - Advanced Materials Research
SP - 337
EP - 340
BT - Manufacturing Science and Technology
T2 - 2011 International Conference on Advanced Engineering Materials and Technology, AEMT 2011
Y2 - 29 July 2011 through 31 July 2011
ER -