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Applied Geology and Geochemistry

Matthew Asmussen

Matthew Asmussen

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352


Dr. Matthew Asmussen is a post-doctoral research associate in the Geosciences group who joined PNNL in October, 2014 after receiving his doctorate in Electrochemistry and Corrosion Science at the University of Western Ontario in Canada. His research interests at PNNL involve the long term immobilization of radionuclides in various waste forms, the corrosion of glass waste forms and the development of getters for radionuclides. Prior to joining PNNL, a portion of his graduate work involved the study of the long term corrosion behaviour of stainless steel based metal alloy waste forms designed to immobilize 99Tc. He has experience in a wide range of analytical techniques such as SEM/XEDS/FIB, CLSM, XRD, TEM, XPS, ToF-SIMS, COD, Auger spectroscopy, optical microscopy, FTIR, Raman spectroscopy, ICP, UV-Vis and liquid scintillation; along with a wealth of experience with electrochemical techniques and analysis such as CV, LPR, EIS, CA/CP, SECM, MEC, galvanic coupling, and in-situ ATR-FTIR. His research experience is widely varied including corrosion, fuel cells, solar cells, nanomaterial synthesis, waste water treatment, lightweight alloys and nuclear waste management. In his spare time he enjoys playing hockey, spending time at the lake and cooking.

Research Interests

  • Nuclear waste forms
  • Safe nuclear waste disposal

Education and Credentials

  • B.Sc. Chemistry, Lakehead University, 2007
  • M.Sc. Chemistry, Lakehead University, 2009
  • Ph.D. Chemistry, University of Western Ontario, 2014

Affiliations and Professional Service

  • Member of the Electrochemical Society
  • Member of NACE (National Association of Corrosion Engineers)
  • Member of the International Society of Electrochemistry
  • Founding member of the NACE Southern Ontario Student Chapter
  • Chair of the 2016 Gordon Research Seminar in Aqueous Corrosion

Awards and Recognitions

  • Recipient of 2014 N. Stewart McIntyre Award in Surface Science
  • Winner of Mars Fontana Award in Corrosion Engineering at CORROSION2014
  • Recipient of 2013 NACE Foundation International Academic Scholarship
  • Recipient of Queen Elizabeth II Graduate Scholarship in Science and Technology (2012, 2013)
  • Recipient on Ontario Graduate Scholarship (2011, 2012)
  • Recipient of Lakehead University Student Innovation Award 2010

PNNL Publications



  • Asmussen RM, CI Pearce, AR Lawter, JJ Neeway, BL Miller, BD Lee, NM Washton, JR Stephenson, RE Clayton, ME Bowden, EC Buck, E Cordova, N Qafoku, and BD Williams. 2016. Getter Incorporation into Cast Stone and Solid State CharacterizationsPNNL-25577 Rev. 0;RPT-SLAW-003 Rev A, Pacific Northwest National Laboratory, Richland, WA. 
  • Asmussen RM, CI Pearce, KE Parker, BW Miller, BD Lee, EC Buck, NM Washton, ME Bowden, AR Lawter, EM McElroy, and RJ Serne. 2016. Solid State Characterizations of Long-Term Leached Cast Stone MonolithsPNNL-25578 Rev.0; RPT-SWCS-008 Rev 0, Pacific Northwest National Laboratory, Richland, WA.  doi:10.2172/1328842
  • Asmussen RM, JJ Neeway, AR Lawter, TG Levitskaia, WW Lukens, and N Qafoku. 2016. "The Function of Sn(II)-Apatite as a 99-Tc Immobilizing Agent." Journal of Nuclear Materials 480:393-402.  doi:10.1016/j.jnucmat.2016.09.002
  • Asmussen RM, JJ Neeway, AR Lawter, AD Wilson, and N Qafoku. 2016. "Silver Based Getters for 129-I Removal from Low Activity Wastes." Radiochimica Acta 104(12):905-913.  doi:10.1515/ract-2016-2598
  • Neeway JJ, RM Asmussen, AR Lawter, ME Bowden, WW Lukens, D Sarma, BJ Riley, MG Kanatzidis, and N Qafoku. 2016. "Removal of TcO4- from Representative Nuclear Waste Streams with Layered Potassium Metal Sulfide Materials." Chemistry of Materials 28(11):3976-3983.  doi:10.1021/acs.chemmater.6b01296


  • Neeway JJ, AR Lawter, RJ Serne, RM Asmussen, and N Qafoku. 2015. "Technetium Getters to Improve Cast Stone Performance." In MRS Proceedings: Scientific Basis for Nuclear Waste Management XXXVIII, vol. 1744, ed. S Gin, R Jubin, J Matyas and E Vance, pp. 43-52.  Materials Research Society , Warrendale, PA.  doi:10.1557/opl.2015.310


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