HKUST-1, 45 albeit lower than the theoretical value of 2153 m 2 /g. The reduced surface area relative to expectation from the pristine crystallographic model is not surprising given the evidence for non-porous copper hydroxide impurities in the PXRD pattern, which would reduce the overall surface area of the sample. However, this surface area shows that approximately 75% of the pores are still open and accessible, making this HKUST-1 appropriate for demonstrating porosity in the experiments described below.