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@ARTICLE{Horne:866055,
      author       = {Horne, Gregory P. and Wilden, Andreas and Mezyk, Stephen P.
                      and Twight, Liam and Hupert, Michelle and Stärk, Andrea and
                      Verboom, Willem and Mincher, Bruce J. and Modolo, Giuseppe},
      title        = {{G}amma radiolysis of hydrophilic diglycolamide ligands in
                      concentrated aqueous nitrate solution},
      journal      = {Dalton transactions},
      volume       = {48},
      issn         = {0300-9246},
      address      = {London},
      publisher    = {Soc.},
      reportid     = {FZJ-2019-05296},
      pages        = {17005-17013},
      year         = {2019},
      abstract     = {The radiation chemistry of a series of hydrophilic
                      diglycolamides (DGAs: TEDGA, Me-TEDGA, Me2-TEDGA, and TPDGA)
                      hasbeen investigated under neutral pH, concentrated, aqueous
                      nitrate solution conditions. A combination of
                      steady-stategamma and time-resolved pulsed electron
                      irradiation experiments, supported by advanced analytical
                      techniques and multiscalemodeling calculations, have
                      demonstrated that: (i) the investigated hydrophilic DGAs
                      undergo first-order decay withan average dose constant of
                      (-3.18 ± 0.23) 10–6 Gy–1; (ii) their degradation
                      product × distributions are similar to those underpure
                      water conditions, except for the appearance of NOx adducts;
                      and (iii) radiolysis is driven by hydroxyl and nitrate
                      radicaloxidation chemistry moderated by secondary
                      degradation product scavenging reactions. Overall, the
                      radiolysis ofhydrophilic DGAs in concentrated, aqueous
                      nitrate solutions is significantly slower and less
                      structurally sensitive than underpure water conditions,
                      similar to their lipophilic analogs. Overall, acid
                      hydrolysis, not radiolysis, is expected to limit theiruseful
                      lifetime. These findings are promising for the deployment of
                      hydrophilic DGAs as actinide aqueous phase strippingand
                      hold-back agents, due to the presence of high concetrations
                      of nitrate in envisioned large-scale process conditions.},
      cin          = {IEK-6},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-6-20101013},
      pnm          = {161 - Nuclear Waste Management (POF3-161) / GENIORS - GEN
                      IV Integrated Oxide fuels recycling strategies (755171) /
                      SACSESS - Safety of ACtinide Separation proceSSes (323282)},
      pid          = {G:(DE-HGF)POF3-161 / G:(EU-Grant)755171 /
                      G:(EU-Grant)323282},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:31691689},
      UT           = {WOS:000498690100017},
      doi          = {10.1039/C9DT03918J},
      url          = {https://juser.fz-juelich.de/record/866055},
}