@article{1994, title={Improvement in Adsorption Capacity of Nitrogen over X-type Zeolites by n-Hexane Plasma Processing and Heat Treatment}, author={Yusaku Sakata and Shigeya Hayashi and Ichiro Funada and Shigeaki Kasaoka}, journal={Chemistry Letters}, volume={23}, number={1}, pages={5-8}, year={1994}, doi={10.1246/cl.1994.5} }