Revealing the Active Species for Aerobic Alcohol Oxidation by Using Uniform Supported Palladium Catalysts | Zendy

Xin Pingyu | Zendy; Li Jia | Zendy; Xiong Yu | Zendy; Wu Xi | Zendy; Dong Juncai | Zendy; Chen Wenxing | Zendy; Wang Yu | Zendy; Gu Lin | Zendy; Luo Jun | Zendy; Rong Hongpan | Zendy; Chen Chen | Zendy; Peng Qing | Zendy; Wang Dingsheng | Zendy; Li Yadong | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

Revealing the Active Species for Aerobic Alcohol Oxidation by Using Uniform Supported Palladium Catalysts

Author(s) -

Xin Pingyu,

Li Jia,

Xiong Yu,

Wu Xi,

Dong Juncai,

Chen Wenxing,

Wang Yu,

Gu Lin,

Luo Jun,

Rong Hongpan,

Chen Chen,

Peng Qing,

Wang Dingsheng,

Li Yadong

Publication year - 2018

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.201801103

Subject(s) - catalysis , palladium , cerium , alcohol oxidation , cerium oxide , chemistry , alcohol , benzaldehyde , transmission electron microscopy , cluster (spacecraft) , metal , selectivity , oxide , inorganic chemistry , materials science , nanotechnology , organic chemistry , computer science , programming language

The active species in supported metal catalysts are elusive to identify, and large quantities of inert species can cause significant waste. Herein, using a stoichiometrically precise synthetic method, we prepare atomically dispersed palladium–cerium oxide (Pd 1 /CeO 2 ) and hexapalladium cluster–cerium oxide (Pd 6 /CeO 2 ), as confirmed by spherical‐aberration‐corrected transmission electron microscopy and X‐ray absorption fine structure spectroscopy. For aerobic alcohol oxidation, Pd 1 /CeO 2 shows extremely high catalytic activity with a TOF of 6739 h −1 and satisfactory selectivity (almost 100 % for benzaldehyde), while Pd 6 /CeO 2 is inactive, indicating that the true active species are single Pd atoms. Theoretical simulations reveal that the bulkier Pd 6 clusters hinder the interactions between hydroxy groups and the CeO 2 surface, thus suppressing synergy of Pd‐Ce perimeter.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research