102. Suhyun Ju, Hyuntae Kang, Soohee Kim, Seongwan Jang, Kang Hyun Park “Simple Transformation of Hierarchical Hollow Structure by Reduction of Metal Organic Frameworks and Their Catalytic Activity in Oxidation of Benzyl Alcohol” 2017 5th International Conference on Nanotechnology and Materials Science, Dubai, October 16 - Otober18, 2017