Lecturer In Physical Chemistry
Chemistry
University College Cork
College Rd
Cork

T: +353-21-490-2439
F: +353-21-427-4097
E: d.venables@ucc.ie
Web Page
Dean Venables obtained his BSc and MSc degrees from Rhodes University in Grahamstown, South Africa. He then went on to complete his doctorate at Yale University in 2001 under Prof. Charles Schmuttenmaer.  His PhD research investigated the properties of liquid mixtures using the then novel technique of ultrafast terehertz spectroscopy to probe the rotational and librational band of water and other polar solvents. This experimental work was complemented with computational studies using molecular dynamics simultations to probe the structure and dynamics of the liquid mixtures at a molecular level. Following his doctorate, he returned to South Africa where he worked at the National Metrology Laboratory developing near-infrared frequency standards using external cavity diode lasers. He then completed a postdoctorate in sensitive atmospheric absorption measurements with Dr Andy Ruth in the Department of Physics, UCC.  In 2005, he was appointed a college lecturer in the Department of Chemistry where he continues to carry out research in atmospheric chemistry and instrument development for quantifying trace gases and characterising aerosols.

My research interests centre on developing new spectroscopic approaches to detect trace gases, and then applying these tools to answer open questions in atmospheric chemistry. Of particular interest is the chemistry of the highly reactive radical species that drive much of the chemistry of the atmosphere, even when present at low parts-per-trillion levels. Such radicals include NO3, the dominant oxidant in the troposphere at night, as well as halogen oxide radicals, particularly BrO and IO, that are responsible for tropospheric ozone loss. Halogen-catalysed loss of ozone is most dramatically evident in the episodic depletion of tropospheric ozone during polar spring. The Venables' group is also investigating the release of iodine from seaweeds and its role in coastal particle formation.  Other projects are focussed on new methods to detect mercury in the atmosphere: new, more sensitive analytical tools are need to investigate the atmospheric speciation of mercury and understand how this important environmental pollutant is exchanged between the surface and the atmosphere.

Book Chapters

 YearPublication
(2000)'A direct measurement of intermolecular solvation dynamics using time-resolved THz spectroscopy (TRTS)'
G.M. Turner, M.C. Beard, D.S. Venables, and C.A. Schmuttenmaer; (2000) 'A direct measurement of intermolecular solvation dynamics using time-resolved THz spectroscopy (TRTS)' In: L. Rothberg (eds). Photoinduced charge transfer. [No details]
(1998)'Time-resolved THz studies of liquid dynamics'
D.S. Venables and C.A. Schmuttenmaer; (1998) 'Time-resolved THz studies of liquid dynamics' In: * (eds). Springer Series on Chemical Physics, vol. 63. [No details]

Peer Reviewed Journals

 YearPublication
(2013)'Molecular composition of biogenic secondary organic aerosols using ultrahigh resolution mass spectrometry: comparing laboratory and field studies'
I. Kourtchev, S. J. Fuller, C. Giorio, R. M. Healy, E. Wilson, I. P. O’Connor, J. C. Wenger, M. McLeod, J. Aalto, T. M. Ruuskanen, W. Maenhaut, R. L. Jones, D. S. Venables, J. R. Sodeau, M. Kulmala, and M. Kalberer (2013) 'Molecular composition of biogenic secondary organic aerosols using ultrahigh resolution mass spectrometry: comparing laboratory and field studies' [DOI] [Details]
(2013)'Light extinction by Secondary Organic Aerosol: an intercomparison of three broadband cavity spectrometers'
R.M. Varma, S.M. Ball, T. Brauers, H.-P. Dorn, U. Heitmann, R.L. Jones, U. Platt, D. Pöhler, A.A. Ruth, A.J.L. Shillings, J. Thieser, A. Wahner, and D. S. Venables (2013) 'Light extinction by Secondary Organic Aerosol: an intercomparison of three broadband cavity spectrometers' [DOI] [Details]
(2013)'Intercomparison of NO3 radical detection instruments in the atmosphere simulation chamber SAPHIR'
H.-P. Dorn, R.L. Apodaca, S.M. Ball, T. Brauers, S.S. Brown, J.N. Crowley, W.P. Dub´e, H. Fuchs, R. H¨aseler, U. Heitmann, R.L. Jones, A. Kiendler-Scharr, I. Labazan, J.M. Langridge, J. Meinen, T.F. Mentel, U. Platt, D. P¨ohler, F. Rohrer, A.A. Ruth, E. Schlosser, G. Schuster, A.J.L. Shillings, W.R. Simpson, J. Thieser, R. Tillmann, R. Varma, D. S. Venables, and A. Wahner (2013) 'Intercomparison of NO3 radical detection instruments in the atmosphere simulation chamber SAPHIR' [DOI] [Details]
(2013)'The seaweeds Fucus vesiculosus and Ascophyllum nodosum are significant contributors to coastal iodine emissions'
R.-J. Huang, U.R. Thorenz, M. Kundel, D.S. Venables, D. Ceburnis, K.F. Ho, J. Chen, A. L. Vogel, F.C. K¨upper, P.P.A. Smyth, U. Nitschke, D.B. Stengel, H. Berresheim, C.D. O’Dowd, and T. Hoffmann (2013) 'The seaweeds Fucus vesiculosus and Ascophyllum nodosum are significant contributors to coastal iodine emissions' [DOI] [Details]
(2012)'Coastal Iodine Emissions. 1. Release of I2 by Laminaria digitata in Chamber Experiments'
Enowmbi R. Ashu-Ayem, Udo Nitschke, Ciaran Monahan, Jun Chen, Steven B. Darby, Paul D. Smith, Colin D. O’Dowd, Dagmar B. Stengel, and Dean S. Venables (2012) 'Coastal Iodine Emissions. 1. Release of I2 by Laminaria digitata in Chamber Experiments' [DOI] [Full Text] [Details]
(2012)'Coastal Iodine Emissions: Part 2. Chamber Experiments of Particle Formation from Laminaria digitata-Derived and Laboratory- Generated I2'
Ciaran Monahan, Enowmbi R. Ashu-Ayem, Udo Nitschke, Steven B. Darby, Paul D. Smith, Dagmar B. Stengel, Dean S. Venables, and Colin D. O’Dowd (2012) 'Coastal Iodine Emissions: Part 2. Chamber Experiments of Particle Formation from Laminaria digitata-Derived and Laboratory- Generated I2' [DOI] [Full Text] [Details]
(2012)'Cavity-enhanced absorption using an atomic line source: application to deep-UV measurements'
Darby, SB,Smith, PD,Venables, DS (2012) 'Cavity-enhanced absorption using an atomic line source: application to deep-UV measurements' [DOI] [Full Text] [Details]
(2011)'A broadband optical cavity spectrometer for measuring weak near-ultraviolet absorption spectra of gases'
Chen, J,Venables, DS; (2011) 'A broadband optical cavity spectrometer for measuring weak near-ultraviolet absorption spectra of gases' [DOI] [Full Text] [Details]
(2011)'Near-Ultraviolet Absorption Cross Sections of Nitrophenols and Their Potential Influence on Tropospheric Oxidation Capacity'
Chen, J., Wenger, J.C., and Venables, D.S.; (2011) 'Near-Ultraviolet Absorption Cross Sections of Nitrophenols and Their Potential Influence on Tropospheric Oxidation Capacity' [DOI] [Full Text] [Details]
(2010)'Intercomparison of measurements of NO2 concentrations in the atmosphere simulation chamber SAPHIR during the NO3Comp campaign'
Fuchs, H,Ball, SM,Bohn, B,Brauers, T,Cohen, RC,Dorn, HP,Dube, WP,Fry, JL,Haseler, R,Heitmann, U,Jones, RL,Kleffmann, J,Mentel, TF,Musgen, P,Rohrer, F,Rollins, AW,Ruth, AA,Kiendler-Scharr, A,Schlosser, E,Shillings, AJL,Tillmann, R,Varma, RM,Venables, DS,Tapia, GV,Wahner, A,Wegener, R,Wooldridge, PJ,Brown, SS; (2010) 'Intercomparison of measurements of NO2 concentrations in the atmosphere simulation chamber SAPHIR during the NO3Comp campaign' [DOI] [Full Text] [Details]
(2009)'Long optical cavities for open-path monitoring of atmospheric trace gases and aerosol extinction'
Varma, R. M.,Venables, D. S.,Ruth, A. A.,Heitmann, U.,Schlosser, E.,Dixneuf, S.; (2009) 'Long optical cavities for open-path monitoring of atmospheric trace gases and aerosol extinction' [DOI] [Full Text] [Details]
(2008)'Incoherent broadband cavity-enhanced absorption spectroscopy in the near-ultraviolet: Application to HONO and NO2'
Gherman, T.,Venables, D. S.,Vaughan, S.,Orphal, J.,Ruth*, A. A.; (2008) 'Incoherent broadband cavity-enhanced absorption spectroscopy in the near-ultraviolet: Application to HONO and NO2' [DOI] [Full Text] [Details]
(2006)'High sensitivity in situ monitoring of NO3 in an atmospheric simulation chamber using incoherent broadband cavity-enhanced absorption spectroscopy'
Venables, D. S.,Gherman, T.,Orphal, J.,Wenger, J. C.,Ruth*, A. A.; (2006) 'High sensitivity in situ monitoring of NO3 in an atmospheric simulation chamber using incoherent broadband cavity-enhanced absorption spectroscopy' [DOI] [Full Text] [Details]
(2005)'The rotationally-resolved absorption spectrum of formaldehyde from 6547 to 6804 cm(-1)'
Staak, M.,Gash, E. W.,Venables, D. S.,Ruth*, A. A.; (2005) 'The rotationally-resolved absorption spectrum of formaldehyde from 6547 to 6804 cm(-1)' [DOI] [Full Text] [Details]
(2001)'Effect of reverse micelle size on the librational band of confined water and methanol'
Venables, D. S.,Huang, K.,Schmuttenmaer, C. A.; (2001) 'Effect of reverse micelle size on the librational band of confined water and methanol' [DOI] [Details]
(2000)'Structure and dynamics of nonaqueous mixtures of dipolar liquids. I. Infrared and far-infrared spectroscopy'
Venables, D. S.,Chiu, A.,Schmuttenmaer, C. A.; (2000) 'Structure and dynamics of nonaqueous mixtures of dipolar liquids. I. Infrared and far-infrared spectroscopy' [DOI] [Details]
(2000)'Structure and dynamics of nonaqueous mixtures of dipolar liquids. II. Molecular dynamics simulations'
Venables, D. S.,Schmuttenmaer, C. A.; (2000) 'Structure and dynamics of nonaqueous mixtures of dipolar liquids. II. Molecular dynamics simulations' [DOI] [Details]
(2000)'Spectroscopy and dynamics of mixtures of water with acetone, acetonitrile, and methanol'
Venables, D. S.,Schmuttenmaer, C. A.; (2000) 'Spectroscopy and dynamics of mixtures of water with acetone, acetonitrile, and methanol' [DOI] [Details]
(1998)'Far-infrared spectra and associated dynamics in acetonitrile-water mixtures measured with femtosecond THz pulse spectroscopy'
Venables, D. S.,Schmuttenmaer, C. A.; (1998) 'Far-infrared spectra and associated dynamics in acetonitrile-water mixtures measured with femtosecond THz pulse spectroscopy' [DOI] [Details]
(1997)'Reduction of tungsten oxides with carbon monoxide'
Venables, D. S.,Brown, M. E.; (1997) 'Reduction of tungsten oxides with carbon monoxide' [DOI] [Details]
(1996)'Reduction of tungsten oxides with hydrogen and with hydrogen and carbon'
Venables, D. S.,Brown, M. E.; (1996) 'Reduction of tungsten oxides with hydrogen and with hydrogen and carbon' [DOI] [Details]
(1996)'Reduction of tungsten oxides with carbon .1. Thermal analyses'
Venables, D. S.,Brown, M. E.; (1996) 'Reduction of tungsten oxides with carbon .1. Thermal analyses' [DOI] [Details]
(1996)'Reduction of tungsten oxides with carbon .2. Tube furnace experiments'
Venables, D. S.,Brown, M. E.; (1996) 'Reduction of tungsten oxides with carbon .2. Tube furnace experiments' [DOI] [Details]
(1995)'Combustion of some zinc-fueled binary pyrotechnic systems'
Tribelhorn, M. J.,Venables, D. S.,Brown, E.; (1995) 'Combustion of some zinc-fueled binary pyrotechnic systems' [DOI] [Details]
(1995)'A thermoanalytical study of some zinc-fuelled binary pyrotechnic systems'
Tribelhorn, M. J.,Venables, D. S.,Brown, M. E.; (1995) 'A thermoanalytical study of some zinc-fuelled binary pyrotechnic systems' [DOI] [Details]

Conference Publications

 YearPublication
(2012)Proceedings of the International Radiation Symposium
E.M. Wilson, J. Chen, R.M. Varma, J.C. Wenger, and D.S. Venables (2012) A Novel, Broadband Spectroscopic Method to Measure the Extinction Coefficient of Aerosols in the Near-Ultraviolet Proceedings of the International Radiation Symposium [Details]
(2008)Proceedings of the 101st Annual Conference of the Air and Waste Management Association
Varma, RM, Venables, DS, Ruth, AA, Heitmann, U, Schlosser, E, Dixneuf, S; (2008) Long Optical Cavities For Open-Path Monitoring of Atmospheric Trace Gases and Aerosol Extinction Proceedings of the 101st Annual Conference of the Air and Waste Management Association [Details]
(2008)Proceedings of the 3rd National SOLAS Workshop (Ireland) 2007
Venables, D.S.; (2008) Applying new developments in trace gas detection to atmospheric chemistry . In: Ward, B eds. Proceedings of the 3rd National SOLAS Workshop (Ireland) 2007 Galway, , pp.1-6 [Details]
(2005)Opto-Ireland 2005: Optical Sensing and Spectroscopy
Venables D.S., Staak M., Ruth A.A.; (2005) Broadband cavity-enhanced absorption spectroscopy for trace gas detection . In: Proceedings of SPIE, Vol. 5826 eds. Opto-Ireland 2005: Optical Sensing and Spectroscopy Royal Dublin Society, Dublin, Ireland, , 04-APR-05 - 06-APR-05 , pp.202-211 [Details]
(2004)Conference on Precision Electromagnetic Measurements
M.J. Prinsloo, S. Singh, D. Venables (2004) South African Frequency Standard through digital diode laser stabilisation to a sub-doppler rovibrational line of acetylene Conference on Precision Electromagnetic Measurements [Details]
(2000)Proceedings of the 10th Annual Symposium of the NSF Center
Turner, G.M., Beard, M.C., Venables, D.S., Schmuttenmaer, C.A.; (2000) A direct measurement of intermolecular solvation dynamics using time-resolved THz spectroscopy (TRTS) . In: Rothberg. L eds. Proceedings of the 10th Annual Symposium of the NSF Center Rochester, NY, USA, , 26-JUL-99 - 29-JUL-99 [Details]
(1998)Ultrafast Phenomena XI
Venables, D.S., Schmuttenmaer, C.A.; (1998) Time-Resolved THz Studies of Liquid Dynamics, in Springer Ser. Chem. Phys., 63 . In: W. Zinth, J. G. Fujimoto, T. Elsaesser, D. Wiersma eds. Ultrafast Phenomena XI [Details]

Published Reports

 YearPublication
(2008)Air pollution - trace radical absorption through cavity-enhanced spectroscopy (TRACES).
U. Heitmann, A.A. Ruth, R.M. Varma, D.S. Venables; (2008) Air pollution - trace radical absorption through cavity-enhanced spectroscopy (TRACES). Final Report (2005-ET-MS-28-M3), prepared for the Environmental Protection Agency, Johnstown Castle. [Details]