UC SPARK - University of Canterbury - New Zealand

Dr Aaron T Marshall

Chemical and Process Engineering

Fields of Research

  • Redox flow batteries
  • Photoelectrochemical redox batteries
  • Electrocatalytic CO2 reduction (CO2 to fuels process)
  • Production of Hydrogen via water electrolysis
  • Reforming hydrocarbons to hydrogen in membrane reactors
  • Molten oxide electrolysis
  • Low temperature fuel cell development
  • Electrocatalytic glycerol oxidation for fuel cells
  • Catalyst development and characterisation
  • Nanoparticle characterisation using synchrotron based x-ray techniques
  • Electrochemical wastewater treatment

Researcher Summary

The majority of my research interests are based around energy and hydrogen technologies. This includes activities on redox batteries, fuel cells, water electrolysis and conversion of biofuels in electrochemical reactors. I have an interest in surface chemistry, particularly using x-ray based methods to understand how and why reactions proceed on various surfaces. I have experience utilising synchrotron radiation to determine structure of materials and the binding of species to surfaces at the atomic scale under industrially relevant reaction conditions.

I have recently completed a Marsden funded project on electrocatalytic CO2 reduction, investigating the production of methanol from CO2 on Cu cathodes. My current externally funded projects (total $2M) include leading a project on photoelectrochemical redox batteries (direct solar energy storage and conversion) and I am a PI on a project investigating ultra-high temperature electrodeposition of Ti from molten oxides.

Subject Area: Disciplines

Research Groups

Future Research

  • Electrochemical wastewater treatment
  • Water-gas shift reaction in novel membrane reactors

Key Methodologies

  • Cyclic voltammetry and electrochemical impedance spectroscopy
  • X-ray diffraction
  • X-ray absorption spectroscopy (synchrotron)
  • X-ray photoelectron spectroscopy
  • Electrochemistry, potentiostats
  • Scanning probe microscopy (AFM, STM)

Equipment

Student Supervision

Displaying all items.
  • PhD - Yaqub A: Electrocatalysis of Redox Flow Batteries (2017)
  • Current
  • PhD - Baldhoff T: Through-mask electrochemical micromachining of microchannels (2018)
  • PhD - Kariman A: Electrochemical wastewater treatment (2018)
  • PhD - Landon-Lane L: Redox flow batteries (2020)
  • PhD - Martin Treceno S: Ultra-high temperature titanium oxide electrolysis (2020)
  • PhD - Savoie M: Photoelectrochemical redox batteries (2020)
  • PhD - Shojaei M: Nano-textured photoelectrochemical anodes (2020)
  • PhD - Taleshiahangari H: Electrochemical carbon dioxide reduction (2019)
  • Masters - Hughes T: Ultra-high temperature titanium oxide electrolysis (2018)
  • Masters - Kirk R: Atomically-Precise Gold and Silver Nanoclusters for Superior Nitrate Electroreduction and Detection (2017)
  • Completed
  • PhD - Abdul Patah F: Non-Slagging Entrained Flow Gasification of Pyrolysis Oil of Radiata Pine Woody Biomass (2016)
  • PhD - Hongrapipat J: Removal of NH3 and H2S from biomass gasification producer gas (2014)
  • PhD - Lim C: Electrocatalytic CO2 conversion to methanol (2017)
  • PhD - Mellsop S: Electrocatalytic anodes for the oxygen evolution reaction (2016)
  • PhD - Padayachee D: Development of electrocatalysts for glycerol oxidation (2014)
  • PhD - Penniall C: Microchannel reactors for Fischer Tropsch (2013)
  • PhD - Steven J: The electrochemical stability of gold nanoparticles and the catalytic reduction of carbon dioxide (2017)
  • Masters - Evelyn E: Microbial Fuel Cells (2013)
  • Masters - Li Y: Microbial Fuel Cells (2013)

Research/Scholarly/Creative Works

Journal Articles
  • Baldhoff T., Nock V. and Marshall AT. (2017) Through-Mask Electrochemical Micromachining of Aluminum in Phosphoric Acid. Journal of The Electrochemical Society 164(9): E194-E202. http://dx.doi.org/10.1149/2.0441709jes.
  • Marshall AT. and Baldhoff T. (2017) Characterization of Surface Films Formed on Aluminum during Mass-Transfer Limited Anodic Dissolution in Phosphoric Acid. Journal of The Electrochemical Society 164(2): C46-C53. http://dx.doi.org/10.1149/2.0731702jes.
  • Lim CFC., Harrington DA. and Marshall AT. (2016) Altering the selectivity of galvanostatic CO₂ reduction on Cu cathodes by periodic cyclic voltammetry and potentiostatic steps. Electrochimica Acta 222: 133-140. http://dx.doi.org/10.1016/j.electacta.2016.10.185.
  • Mellsop SR., Gardiner A. and Marshall AT. (2016) Spontaneous Deposition of Iridium onto Nickel Substrates for the Oxygen Evolution Reaction. Electrocatalysis 7(3): 226-234. http://dx.doi.org/10.1007/s12678-016-0299-9.
  • Steven JT., Golovko VB., Johannessen B. and Marshall AT. (2016) Electrochemical stability of carbon-supported gold nanoparticles in acidic electrolyte during cyclic voltammetry. Electrochimica Acta 187: 593-604. http://dx.doi.org/10.1016/j.electacta.2015.11.096.
  • Marshall AT. and Vaisson-Béthune L. (2015) Avoid the quasi-equilibrium assumption when evaluating the electrocatalytic oxygen evolution reaction mechanism by Tafel slope analysis. Electrochemistry Communications 61: 23-26. http://dx.doi.org/10.1016/j.elecom.2015.09.019.
  • Mellsop SR., Gardiner A., Johannessen B. and Marshall AT. (2015) Structure and transformation of oxy-hydroxide films on Ni anodes below and above the oxygen evolution potential in alkaline electrolytes. Electrochimica Acta 168: 356-364. http://dx.doi.org/10.1016/j.electacta.2015.04.020.
  • Evelyn E., Li Y., Marshall A. and Gostomski PA. (2014) Gaseous pollutant treatment and electricity generation in microbial fuel cells (MFCs) utilising redox mediators. Reviews in Environmental Science and Bio/Technology 13(1): 35-51. http://dx.doi.org/10.1007/s11157-013-9322-2.
  • Hongrapipat J., Yip ACK., Marshall AT., Saw WL. and Pang S. (2014) Investigation of simultaneous removal of ammonia and hydrogen sulphide from producer gas in biomass gasification by titanomagnetite. Fuel 135: 235-242. http://dx.doi.org/10.1016/j.fuel.2014.06.037.
  • Mellsop SR., Gardiner A. and Marshall AT. (2014) Electrocatalytic Oxygen Evolution on Electrochemically Deposited Cobalt Oxide Films: Comparison with Thermally Deposited Films and Effect of Thermal Treatment. Electrocatalysis 5(4): 445-455. http://dx.doi.org/10.1007/s12678-014-0212-3.
  • Padayachee D., Golovko V., Ingham B. and Marshall AT. (2014) Influence of particle size on the electrocatalytic oxidation of glycerol over carbon-supported gold nanoparticles. Electrochimica Acta 120: 398-407. http://dx.doi.org/10.1016/j.electacta.2013.12.100.
  • Marshall AT. and Haverkamp RG. (2012) Nanoparticles of IrO2 or Sb-SnO2 increase the performance of Iridium oxide DSA electrodes. Journal of Materials Science 47(3): 1135-1141. http://dx.doi.org/10.1007/s10853-011-5958-x.
  • Haverkamp RG., Marshall AT. and Cowie BCC. (2011) Energy resolved XPS depth profile of (IrO₂, RuO₂, Sb₂O₅, SnO₂) electrocatalyst powder to reveal core-shell nanoparticle structure. Surface and Interface Analysis 43(5): 847-855. http://dx.doi.org/10.1002/sia.3644.
  • Haverkamp RG. and Marshall AT. (2009) The mechanism of metal nanoparticle formation in plants: limits on accumulation. Journal of Nanoparticle Research 11(6): 1453-1463. http://dx.doi.org/10.1007/s11051-008-9533-6.
  • Marshall AT. and Haverkamp RG. (2008) Production of hydrogen by the electrochemical reforming of glycerol-water solutions in a PEM electrolysis cell. International Journal of Hydrogen Energy 33(17): 4649-4654. http://dx.doi.org/10.1016/j.ijhydene.2008.05.029.
  • Williams MAK., Marshall A., Haverkamp RG. and Draget KI. (2008) Stretching single polysaccharide molecules using AFM: A potential method for the investigation of the intermolecular uronate distribution of alginate? Food Hydrocolloids 22(1): 18-23. http://dx.doi.org/10.1016/j.foodhyd.2007.01.020.
  • Haverkamp RG., Marshall AT. and van Agterveld D. (2007) Pick your Carats: Nanoparticles of Gold-Silver-Copper Alloy Produced In Vivo. Journal of Nanoparticle Research 9(4): 697-700. http://dx.doi.org/10.1007/s11051-006-9198-y.
  • Haverkamp RG., Marshall AT. and Williams MAK. (2007) A Model for Stretching Elastic Biopolymers which Exhibit Conformational Transitions. Physical Review E: Statistical, Nonlinear, and Soft Matter Physics 75(2): 21907. http://dx.doi.org/10.1103/PhysRevE.75.021907.
  • Haverkamp RG., Marshall AT. and Williams MAK. (2007) Entropic and Enthalpic Contributions to the Chair-Boat Conformational Transformation in Dextran under Single Molecule Stretching. Journal of Physical Chemistry B 111(48): 13653-13657. http://dx.doi.org/10.1021/jp076052t.
  • Marshall A., Børresen B., Hagen G., Tsypkin M. and Tunold R. (2007) Hydrogen production by advanced Proton Exchange Membrane (PEM) water electrolysers - Reduced energy consumption by improved electrocatalysis. Energy 32(4): 431-436. http://dx.doi.org/10.1016/j.energy.2006.07.014.
  • Marshall AT., Haverkamp RG., Davies CE., Parsons JG., Gardea-Torresdey JL. and van Agterveld D. (2007) Accumulation of Gold Nanoparticles in Brassic Juncea. International Journal of Phytoremediation 9(3): 197-206. http://dx.doi.org/10.1080/15226510701376026.
  • Marshall AT., Sunde S., Tsypkin M. and Tunold R. (2007) Performance of a PEM water electrolysis cell using IrxRuyTazO2 electrocatalysts for the oxygen evolution electrode. International Journal of Hydrogen Energy 32(13): 2320-2324. http://dx.doi.org/10.1016/j.ijhydene.2007.02.013.
  • Williams MAK., Marshall AT., Anjukandi P. and Haverkamp RG. (2007) Investigation of the effects of fine structure on the nanomechanical properties of pectin. Physical Review E: Statistical, Nonlinear, and Soft Matter Physics 76(2): 21927. http://dx.doi.org/10.1103/PhysRevE.76.021927.
  • Marshall A., Børresen B., Hagen G., Sunde S., Tsypkin M. and Tunold R. (2006) Iridium oxide-based nanocrystalline particles as oxygen evolution electrocatalysts. Russian Journal of Electrochemisty 42(10): 1134-1140. http://dx.doi.org/10.1134/S1023193506100223.
  • Marshall A., Børresen B., Hagen G., Tsypkin M. and Tunold R. (2006) Electrochemical characterisation of IrxSn1-xO2 powders as oxygen evolution electrocatalysts. Electrochimica Acta 51(15): 3161-3167. http://dx.doi.org/10.1016/j.electacta.2005.09.004.
  • Marshall A., Børresen B., Hagen G., Tsypkin M. and Tunold R. (2005) Preparation and characterisation of nanocrystalline IrxSn1-xO2 electrocatalytic powders. Materials Chemistry and Physics 94(2-3): 226-232. http://dx.doi.org/10.1016/j.matchemphys.2005.04.039.
  • Marshall A., Tsypkin M., Borresen B., Hagen G. and Tunold R. (2004) Nanocrystalline IrxSn(1-x)O2 electrocatalysts for oxygen evolution in water electrolysis with polymer electrolyte - Effect of heat treatment. Journal of New Materials for Electrochemical Systems 7(3): 197-204.
  • Marshall A., Tsypkin M., Børresen B., Hagen G. and Tunold R. (2004) Nanocrystalline IrxSn1-xO2 electrocatalysts for oxygen evolution in water electrolysis with polymer electrolyte - Effect of heat treatment. Journal of New Materials for Electrochemical Systems 7: 197-204.
Conference Contributions - Published
  • Penniall C., Williamson C. and Marshall AT. (2012) Comparison of the performance of washcoating variations for Fisher-Tropsch synthesis in a microchannel reactor. Wellington, New Zealand: Chemeca2012, 23-26 Sep 2012.
  • Tunold R., Marshall A., Rasten E., Tsypkin M., Owe L. and Sunde S. (2010) Materials for Electrocatalysis of Oxygen Evolution in PEM Water Electrolysis. Vienna, Austria: 216th Electrochemical Society Meeting, 4-9 Oct 2009. In Meeting Abstracts 25(23): 103-117. http://dx.doi.org/10.1149/1.3328515.
  • Marshall AT., Haverkamp RG. and Williams MAK. (2006) Stretching single molecules of pectin and their force induced conformational transformations. Rotorua, New Zealand: NZIC Conference, 2-6 Dec 2006. : 151-152.
  • Marshall AT., Haverkamp RG., Davies CE., Parsons JG., Gardea-Torresdey JL. and Van Agterveld D. (2006) Release of gold nanoparticles from phytomined biomass by enzymatic digestion. In AIChE Annual Meeting, Conference Proceedings
  • Marshall A., Børresen B., Hagen G., Tsypkin M. and Tunold R. (2005) Hydrogen production by advanced PEM water electrolysers - Reduced energy consumption by improved electrocatalysis. In ECOS 2005 - Proceedings of the 18th International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems: 1167-1174.
Conference Contributions - Other
  • Anderson DP., Adnan R., Donoeva B., Ovoshchnikov D., Abu Bakar F., Ruzicka JY., Steven J., Hashemizadeh I., Marshall A. and Williamson B. (2017) Fine-tuning nanoparticles for catalysis and sensing: a journey towards precisely controlled fabrication. Queenstown, New Zealand: 8th International Conference on Advanced Materials and Nanotechnology, 12-16 Feb 2017
  • Baldhoff T., Marshall AT. and Nock VM. (2017) Through-mask electrochemical micromachining of aluminium. Queenstown, New Zealand: 8th International Conference on Nanotechnology and Advanced Materials (AMN-8), 12 Feb 2017
  • Baldhoff T., Nock VM. and Marshall A. (2017) Aluminium micromachining in phosphoric acid via through-mask electrochemical micromachining. Braga, Portugal: 43rd International Conference on Micro- and Nanoengineering, 18-22 Sep 2017
  • Golovko V., Anderson DP., Ovoshchnikov D., Donoeva B., Ruzicka J., Abu Bakar F., Adnan RHB., Andersson GG., Metha G. and Kimoto K. (2017) CONTROLLED FABRICATION OF CATALYSTS FOR GREEN CHEMICAL PROCESSES. Gabicce Mare, Italy: CRS-4 Catalysis for Renewable Sources: fuel, energy, chemicals, 3-9 Sep 2017
  • Golovko V., Anderson DP., Ovoshchnikov D., Donoeva B., Ruzicka J., Abu Bakar F., Adnan RHB., Andersson GG., Metha G. and Kimoto K. (2017) From studies of pure and supported metal clusters to design of well-defined catalysts for environmentally friendly catalysis. Florence, Italy: EuropaCat-2017 13th European Congress on Catalysis, 27-31 Aug 2017
  • Baldhoff T. and Marshall AT. (2016) Study of Anodically Formed Solid Films during Electropolishing of Aluminium using Electrochemical Impedance Spectroscopy. The Hague, The Netherlands: 67th Annual Meeting of the International Society of Electrochemistry, 21-26 Aug 2016
  • Golovko V., Anderson D., Ovoshchnikov D., Donoeva B., Ruzicka JY., Abu Bakar F., Adnan R., Poonthiyil V., Andersson G. and Metha G. (2016) Uncovering structure-property relationships: from studies of pure and supported metal clusters and colloids to their use in catalysis and sensing. Queenstown, New Zealand: New Zealand Institute of Chemistry Conference (NZIC-2016), 21-24 Aug 2016
  • Marshall AT. (2016) Electrocatalytic oxygen evolution at nickel oxy-hydroxide anodes (Keynote). Hsinchu, Taiwan: APEnergy 2016, 4-8 Sep 2016
  • Marshall AT., Lim C. and Harrington D. (2016) Electrochemical reduction of carbon dioxide on copper cathodes. The Hague, The Netherlands: 67th Annual Meeting of the International Society of Electrochemistry, 21-26 Aug 2016
  • Marshall AT., Lim C. and Harrington D. (2016) TiO2 modified Cu cathodes for electrocatalytic CO2 reduction. Auckland, New Zealand: 19th Topical Meeting of the International Society of Electrochemistry, 17-20 Apr 2016
  • Golovko V., Anderson., Adnan R., Donoeva B., Ovoshchnikov D., Ruzicka JY., Padayachee D., Marshall A., Andersson G. and Metha G. (2015) Uncovering structure-property relationships: from studies of pure and supported metal clusters and colloids to their use in catalysis and sensing. Honolulu, Hawaii: Pacifichem 2015, 15-20 Dec 2015
  • Golovko V., Andersson G., Marshall A., Metha G., Ingham B. and Kemmitt T. (2015) Structure-property relationships in Metal Clusters, Au MNPs and TiO2 made using surface modifying agents. Nelson, New Zealand: AMN-7: Advanced Materials and Nanotechnology, 8-12 Feb 2015
  • Lim C., Harrington DA. and Marshall AT. (2015) Influence of mass transfer on the electrochemical reduction of CO2 on polycrystalline copper in KHCO3 medium. Melbourne, Australia: Asia Pacific Confederation of Chemical Engineering Congress 2015 (APCChE 2015) incorporating CHEMECA 2015, 27 Sep-1 Oct 2015
  • Marshall AT., Golovko V., Padayachee D. and Steven J. (2015) Electrocatalytic oxidation of glycerol over Au NPs. Nelson, New Zealand: Advanced Materials and Nanotechnology (AMN-7), 8-12 Feb 2015
  • Marshall AT., Lim C. and Harrington D. (2015) Electrocatalytic reduction of CO2 at TiO2-Cu cathodes. Singapore: 13th International Conference On Carbon Dioxide Utilization, 5-9 Jul 2015
  • Steven J., Golovko V., Johannessen B. and Marshall AT. (2015) Growth of catalytic Au nanoparticles upon electrochemical ageing. Melbourne, Australia: Growth of catalytic Au nanoparticles upon electrochemical ageing, 25-27 Nov 2015
  • Steven JT., Golovko VB., Johannessen B. and Marshall AT. (2015) Ageing of electrocatalytic gold nanoparticles via repetitive potential cycling. Sydney, Australia: 6th World Hydrogen Technologies Convention, 11-14 Oct 2015
  • Marshall AT., Padayachee D. and Golovko V. (2014) Electrocatalytic glycerol oxidation at gold nanoparticles (invited talk). APEnergy2014: APEnergy2014, 5-8 Feb 2014
  • Mellsop SR., Gardiner A. and Marshall AT. (2014) Materials for the OER in Alkaline Water Electrolysis. Brisbane, Australia: APEnergy2014, 5-8 Feb 2014
  • Golovko VB., Anderson DP., Ovoshchnikov D., Donoeva B., Ghadamgahi S., Adnan R., Abu Bakar F., Gunby N., Alvino J. and Bennett T. (2013) Study of gold clusters as promising key ingredients of model catalysts - from better understanding pure clusters to study of support-immobilisation, activation and catalytic performance. Auckland, New Zealand: Sixth International Conference on Advanced Materials and Nanotechnology (AMN-6), 11-15 Feb 2013
  • Evelyn E., Marshall AT. and Gostomski P. (2012) Ethanol oxidation in a microbial fuel cell (MFC) utilising various mediators and potential intergration of a MFC into an anaerobic biofiltration system. Wellington, New Zealand: Chemeca2012, 23-26 Sep 2012
  • Marshall AT. and MacDonald MJ. (2012) Electrochemical oxidation of biodiesel wastewater using a dimensionally stablised anode. Wellington, New Zealand: Chemeca2012, 23-26 Sep 2012
  • Mellsop SR., Marshall AT. and Gardiner A. (2012) Development of electrocatalysts for the oxygen evolution reaction in alkaline solution. Wellington, New Zealand: Chemeca2012, 23-26 Sep 2012
  • Padayachee D., Golovko V. and Marshall AT. (2012) Development of electrocatalysts for glycerol fuel cells. Wellington, New Zealand: Chemeca2012, 23-26 Sep 2012
  • Tunold R., Tsypkin MA., Marshall A. and Rasten E. (2011) Electrocatalysis of oxygen evolution in PEM water electrolysis cell. Chania, Greece: 9th European Symposium on Electrochemical Engineering (ESSE), 19-23 Jun 2011
  • Marshall AT. and Haverkamp RG. (2009) Structural analysis of conductive metal oxide electrocatalysts. Wellington, New Zealand: New Zealand Synchrotron Users' Meeting 2009, 20-21 Apr 2009
  • Haverkamp RG., Marshall A. and Williams M. (2007) The Thermodynamics of Single Molecule Stretching of Polysaccharides: Implications for Elastic Tissues. Salt Lake City, UT, USA: AIChE Annual Meeting, 4-9 Nov 2007
  • Haverkamp RG., Marshall AT. and Williams MAK. (2006) Single Molecule Polysaccharide Stretching - A Model for the Conformational Transitions. Rio de Janeiro, Brazil: 41st International Symposium on Macromolecules - IUPAC World Polymer Congress MACRO 2006, 16-21 Jul 2006
  • Marshall A., Børresen B., Hagen G., Tsypkin M. and Tunold R. (2006) Nanocrystalline Oxides as Oxygen Evolution Electrocatalysts for PEM Water Electrolysis. Denver, CO, USA: 209th Electrochemical Society Meeting, 7-12 May 2006
  • Williams MAK., Haverkamp RG., Marshall A. and Draget KI. (2006) Stretching single polysaccharide molecules using AFM. Trondheim, Norway: 8th International Hydrocolloids Conference, 18-22 Jun 2006