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Simple Transformation of Hierarchical Hollow Structures by Reduction of Metal–Organic Frameworks and Their Catalytic Activity in the Oxidation of Benzyl Alcohol
Author(s) -
Ju Suhyun,
Yusuf Mohammad,
Jang Seongwan,
Kang Hyuntae,
Kim Soohee,
Park Kang Hyun
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201900231
Subject(s) - benzyl alcohol , hydrazine (antidepressant) , catalysis , hydrate , sorption , metal organic framework , chemistry , selectivity , alcohol oxidation , alcohol , reducing agent , x ray photoelectron spectroscopy , inorganic chemistry , chemical engineering , organic chemistry , adsorption , chromatography , engineering
Metal–organic framework (MOF)‐based derivatives have been found to be promising heterogeneous catalysts for organic transformations. Herein, hollow‐structure Cu‐MOFs derived by reduction of Cu 3 (BTC) 2 (BTC=1,3,5‐benzenetricarboxylate; denoted as RCB) were prepared by using hydrazine hydrate as a reducing agent under various conditions. The influence of hydrazine hydrate induced the structure of Cu 3 (BTC) 2 and led to dynamic variation in the interior and exterior as well as oxidation states of the Cu ion. The synthesized materials were characterized by SEM, TEM, N 2 sorption isotherms, XRD, and XPS. The product of the catalytic reaction was observed by GC‐MS. In addition, the prepared RCBs were found to have excellent catalytic activity and selectivity for benzyl alcohol oxidation when assisted by 2,2,6,6‐tetramethylpiperidine‐1‐oxyl (TEMPO).