homogenizing with an agate mortar and pestle, the powder was pressed into pellets by using a 15-ton hydraulic press. The data were collected at 2.0 cm−1 resolution, and each spectrum was a result of 256 scans
homogenizing with an agate mortar and pestle, thepowder was pressed into pellets by using a 15-ton hydraulic press.The data were collected at 2.0 cm−1 resolution, and each spectrumwas a result of 256 scans