Ion selective sensors based on molybdenum bronzes

Details Ion selective sensors based on molybdenum bronzes Ion selective sensors based on molybdenum bronzes

1998-01-13

2000-01-18

Till, Terrence R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

G01N 2726

Patent

active

060154810

ABSTRACT:
New solid state pH and sodium ion sensitive metal-oxide-type compositions, sensors and methods are disclosed. Performance thereof was demonstrated at ambient temperature with single crystals of several molybdenum bronzes (i.e. Na.sub.0.9 Mo.sub.6 O.sub.17, Li.sub.0.9 Mo.sub.6 O.sub.17, Li.sub.0.33 MoO.sub.3 and K.sub.0.3 MoO.sub.3) The pH sensors with Na-molybdenum-oxide bronzes show near ideal Nernstian behavior in the pH range 3-9. The response is not affected by the direction of the pH change.

REFERENCES:
patent: 4111777 (1978-09-01), Dobson et al.
Tsai, P.P. et al., Crystal Structure of Li.sub.0..33 MoO.sub.3, a Stoichiometric, Triclinic, Lithium Molybdenum Bronze, Journal of Solid State Chemistry 64, 47-56 (1986).
Greenblatt, M., Molybdenum Oxide Bronzes with Quasi-Low-Dimensional Properties, Chem. Rev., 1988, 88, 31-53.
Clearfield, A., Role of Ion Exchange in Solid-State Chemistry, Chem. Rev. 1988, 88, 125-148.
Shuk, P. et al., Molybdenum Oxide Bronzes As pH Sensors, Electrochimica Acta, vol. 41, No. 13, pp. 2055-2058, 1996.
Raistrick, I., Lithium Insertion Reactions in Tungsten and Vanadium Oxide Bronzes, Solid State Ionics 9 & 10 (1983) 425-430.
Raistrick, I., Lithium Insertion Reactions in Oxide Bronzes, Revue de Chimie Minerale, t. 21, 1984, pp. 456-467.
McCarroll, W.H. et al., Preparation of Lithium Molybdenum Oxide Bronzes by a Temperature Gradient Flux Growth Technique, Journal of Solid State Chemistry 54, 282-290 (1984).
Eisenman, G., Glass Electrode for Measuring Sodium Ion, Science, vol. 126, pp. 831-834 (Oct. 25, 1987).
Kress-Rogers, E., Solid-State pH Sensors For Food Aapplications, Trends in Food Science & Technology, Dec. 1991, pp. 320-324.
Randin, J.P., Electrochemical Behavior of Sodium Tungsten Bronze Electrodes in Acidic Media, J. Electrochem. Soc.: Electrochemical Science and Technology, vol. 120, No. 9, Sep. 1973, pp. 1174-1184.
Ramanujachary, K.V. et al, Substitutional Effects on the Electrical Properties of the Purple Bronze Li.sub.0.9 Mo.sub.6 O.sub.17, Solid State Ionics 22 (1986) 105-115.
Fog, A. et al, Electronic Semiconducting Oxides As pH Sensors, Sensors and Actuators, 5 (1984) 137-146.
Dobson, J.V. et al., The Sodium Responsive Tungsten Bronze Electrode An Electrode For Sodium Ion Analysis of DNA Solutions, J. Electroanal. Chem., 220 (1987) 225-234.
Buck, R.P., Crystalline and Pressed-Power, Solid-Membrane Electrodes, Ion-Selective Electrode Methodology, Chapter 9 in Ion Selective Electrodes, ed. A.F. Covington (CRC Press) 1975.
Wakichi, K. et al., Synthesis and Applications of Sodium Tungsten Bronze as an Electrode Material, abstract 121:215712m, Natl. Inst. Mater. Chem. Res., Zairyo Gijutsu, 1994, 12(6), 180-4.
Koksharov, A.G. et al., Electrode Properties of Sodium-Tungsten Bronzes, (abstract) Uch. Zap. Pernisk, Gos. Univ. No. 111, 63-9 (1964).
Wechter, M.A., Use of Metal Tungsten Bronze Electrodes in Chemical Analysis, abstract 121092j, Anal. Chem. 1972, 44(4), 850-3.
Dobon, J.V., et al, Ion Selective Electrodes, Abstract 96:96738e, Mar. 15, 1977.

Affiliated with

Also associated with

Rating

Ion selective sensors based on molybdenum bronzes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ion selective sensors based on molybdenum bronzes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ion selective sensors based on molybdenum bronzes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-560667