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Selective Synthesis of Phenol from Benzene with O 2 by Switchover of the Reaction Pathway from Complete Oxidation to Selective Hydroxylation by NH 3 on Ir/β and Ni/β Catalysts
Author(s) -
Wang Linsheng,
Yamamoto Sadaaki,
Hayashizaki Kenichiro,
Nagamatsu Shinichi,
Malwadkar Sachin,
Sasaki Takehiko,
Iwasawa Yasuhiro
Publication year - 2015
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201500529
Subject(s) - chemistry , benzene , phenol , catalysis , hydroxylation , autocatalysis , cluster (spacecraft) , photochemistry , inorganic chemistry , organic chemistry , enzyme , computer science , programming language
New and selective IrO 2 cluster/β and NiO cluster/β catalysts have been synthesized for the direct synthesis of phenol from benzene with O 2 in gas‐phase single‐path flow reactions. Phenol is generated by switchover of the reaction pathway from complete oxidation of benzene to selective hydroxylation of benzene by NH 3 . The active oxide‐cluster structures in the β pores have been characterized by XAFS, XPS, STEM‐EDS, XRD, and DFT calculations. The reaction profile and the role of NH 3 in the synthesis of phenol on the proposed Ni 4 O 4 cluster have also been simulated by DFT calculations.
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