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TAP-TOF fast transient kinetic equipment

The Temporal Analysis of products (TAP) reactor is a facility for observing transient changes on a catalyst with a time resolution of milliseconds while at the same time not changing the catalyst. This is achieved by the addition of only very small pulses of reactant gases.



The conventional TAP reactor is fitted with a quadrupole masss pectrometer for gas analysis. We have upgraded our TAP reactor by replacing the quadrupole mass spectrometer with a Time of Flight (ToF) mass spectrometer which allows many different masses to be analysed simultaneously.


The ToF was developed in collaboration with the manufacturer (SAI) because of non-linearity in the conventional ToF detector.



The TAP-ToF has been tested using pulses of Argon.


And the simultaneous analysis of complex gas mixtures has been demonstrated.


The TAP-ToF will be further developed to allow the addition of liquids, and will be used to study a range of reactions including:

    *  the steam reforming of bio-alcohols

    *  the selective hydrogenation of acetylene

    *  oxidative cracking of alkanes on gold-based catalysts

    *  the Fischer Tropsch reaction on novel catalysts



Time of flight mass spectrometry for quantitative data analysis in fast transient studies using a Temporal Analysis of Products (TAP) reactor.

Goguet, A., Hardacre, C., Maguire, N., Morgan, K., Shekhtman, S.O. and Thompson, S.P.

ANALYST 136 (2011) 155-163.

TAP studies of ammonia decomposition over Ru and Ir catalysts.

García-García,F.R., Guerrero-Ruiz, A., Rodríguez-Ramos, I., Goguet, A., Shekhtman, S.O. and C. Hardacre,


Correction for reversible adsorption over the “inert” material in catalytic studies using a TAP reactor.

Goguet, A., Hardacre, B., Inceesungvorn, B., Morgan, K. and Shekhtman, S.O.



TAP Studies of CO oxidation over CuMnOx and Au/CuMnOx Catalysts.
Morgan, K., Cole, K.J., Goguet, A., Hardacre, C., Hutchings, G.J., Maguire, N., Shekhtman, S.O., Taylor, S.H., Accepted to Journal of Catalysis, August 24th 2010, doi: 10.1016/j.jcat.2010.08.013