Research Challenges in Avoiding “Showstoppers” in Developing Materials for Large- Scale Energy Applications  Krista S. Walton, David S. Sholl  Joule  Volume 1, Issue 2, Pages 208-211 (October 2017) DOI: 10.1016/j.joule.2017.06.005 Copyright © 2017 Elsevier Inc. Terms and Conditions

Figure 1 Scalable MOF Membranes (A) Microscopy images of a metal-organic framework (MOF) membrane layer grown on the interior of a highly porous and scalable polymeric hollow fiber. (B) Color-coded energy-dispersive X-ray imaging showing the thin layer of MOF inside the polymer fiber. Reproduced with permission from AAAS from Brown et al.3 Joule 2017 1, 208-211DOI: (10.1016/j.joule.2017.06.005) Copyright © 2017 Elsevier Inc. Terms and Conditions

Figure 2 Degradation of MOFs by Impurities (A–C) Microscopy images of metal-organic framework (MOF) particles (A) after synthesis (scale bar, 5 μm), and after exposure to 1.8 mmol SO2 in water at 25°C for (B) 2 days (scale bar, 2 μm) and (C) 4 days (scale bar, 2 μm). This material is stable in pure water and in dry SO2. Reproduced with permission from the American Chemical Society from Pang et al.7 Joule 2017 1, 208-211DOI: (10.1016/j.joule.2017.06.005) Copyright © 2017 Elsevier Inc. Terms and Conditions

Joule 2017 1, 208-211DOI: (10.1016/j.joule.2017.06.005) Copyright © 2017 Elsevier Inc. Terms and Conditions

Joule 2017 1, 208-211DOI: (10.1016/j.joule.2017.06.005) Copyright © 2017 Elsevier Inc. Terms and Conditions