TY  - JOUR
AU  - Collins, Sean M.
AU  - MacArthur, Katherine E.
AU  - Longley, Louis
AU  - Tovey, Robert
AU  - Benning, Martin
AU  - Schönlieb, Carola-Bibiane
AU  - Bennett, Thomas D.
AU  - Midgley, Paul A.
TI  - Phase diagrams of liquid-phase mixing in multi-component metal-organic framework glasses constructed by quantitative elemental nano-tomography143
JO  - APL materials
VL  - 7
IS  - 9
SN  - 2166-532X
CY  - Melville, NY
PB  - AIP Publ.
M1  - FZJ-2020-02803
SP  - 091111 -
PY  - 2019
N1  - Helmholtz Postdoctoral Fellowship
AB  - Several distinct mixing processes and resulting microstructures have recently been reported in multicomponent glasses prepared from multiple metal-organic frameworks. Here, two illustrative examples of multicomponent zeolitic imidazolate framework (ZIF) glasses, the (aTZIF-4-Co)0.5(agZIF-62)0.5 blend and the ag[(ZIF-67)0.2(ZIF-62)0.8] flux melted glass, are studied. These materials are characterized by quantitative X-ray energy dispersive spectroscopy in the scanning transmission electron microscope. By advancing a partial ionization cross section methodology using standards of arbitrary morphology, quantitative nanoscale elemental analysis throughout the glass volume is achieved. In turn, phase diagrams describing the mixing states are presented, offering mechanistic insight into the formation of the observed microstructures. Significant miscibility was observed in ag[(ZIF-67)0.2(ZIF-62)0.8]. These findings establish phase-segregation and interdiffusion as two processes in multicomponent glass formation, which explains the different outcomes observed in blending and flux meltin
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000489245900001
DO  - DOI:10.1063/1.5120093
UR  - https://juser.fz-juelich.de/record/878356
ER  -