AgCu/SiC-powder: A highly stable and active catalyst for gas-phase selective oxidation of alcohols

Liang Zhao; Liping Kong; Chunze Liu; Yuanyuan Wang; Liyi Dai

doi:10.1016/j.catcom.2017.04.043

AgCu/SiC-powder: A highly stable and active catalyst for gas-phase selective oxidation of alcohols

Liang Zhao
, Liping Kong
, Chunze Liu
, Yuanyuan Wang^*
, Liyi Dai

^*Corresponding author for this work

School of Chemistry and Molecular Engineering

East China Normal University

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

Highly active and selective bimetallic AgCu/SiC-powder catalysts have been prepared by a facile method for the gas-phase selective oxidation of alcohols (such as 99.3% benzyl alcohol conversion and 99.6% benzyl aldehyde selectivity). The catalytic activity can maintain at least 200 h compared with Cu/SiC (only within 10 h). The formation of Ag-Cu₂O ensembles brings about enhanced improvement both in conversion and stability. The XPS results reveal that large amounts of Ag⁰-Cu₂O active sites formed after pre-activation process and Cu₂O sites play a dominant role in benzyl alcohol oxidation reaction. Dehydrogenation reaction process has also been confirmed by O₂-TPD.

Original language	English
Pages (from-to)	1-4
Number of pages	4
Journal	Catalysis Communications
Volume	98
DOIs	https://doi.org/10.1016/j.catcom.2017.04.043
State	Published - 2017

Keywords

Ag-CuO
AgCu/SiC
Alcohol oxidation
Bimetallic catalyst

Access to Document

10.1016/j.catcom.2017.04.043

Cite this

@article{363be8b44e1749efb77611562522803c,

title = "AgCu/SiC-powder: A highly stable and active catalyst for gas-phase selective oxidation of alcohols",

abstract = "Highly active and selective bimetallic AgCu/SiC-powder catalysts have been prepared by a facile method for the gas-phase selective oxidation of alcohols (such as 99.3\% benzyl alcohol conversion and 99.6\% benzyl aldehyde selectivity). The catalytic activity can maintain at least 200 h compared with Cu/SiC (only within 10 h). The formation of Ag-Cu2O ensembles brings about enhanced improvement both in conversion and stability. The XPS results reveal that large amounts of Ag0-Cu2O active sites formed after pre-activation process and Cu2O sites play a dominant role in benzyl alcohol oxidation reaction. Dehydrogenation reaction process has also been confirmed by O2-TPD.",

keywords = "Ag-CuO, AgCu/SiC, Alcohol oxidation, Bimetallic catalyst",

author = "Liang Zhao and Liping Kong and Chunze Liu and Yuanyuan Wang and Liyi Dai",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

doi = "10.1016/j.catcom.2017.04.043",

language = "英语",

volume = "98",

pages = "1--4",

journal = "Catalysis Communications",

issn = "1566-7367",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - AgCu/SiC-powder

T2 - A highly stable and active catalyst for gas-phase selective oxidation of alcohols

AU - Zhao, Liang

AU - Kong, Liping

AU - Liu, Chunze

AU - Wang, Yuanyuan

AU - Dai, Liyi

PY - 2017

Y1 - 2017

N2 - Highly active and selective bimetallic AgCu/SiC-powder catalysts have been prepared by a facile method for the gas-phase selective oxidation of alcohols (such as 99.3% benzyl alcohol conversion and 99.6% benzyl aldehyde selectivity). The catalytic activity can maintain at least 200 h compared with Cu/SiC (only within 10 h). The formation of Ag-Cu2O ensembles brings about enhanced improvement both in conversion and stability. The XPS results reveal that large amounts of Ag0-Cu2O active sites formed after pre-activation process and Cu2O sites play a dominant role in benzyl alcohol oxidation reaction. Dehydrogenation reaction process has also been confirmed by O2-TPD.

AB - Highly active and selective bimetallic AgCu/SiC-powder catalysts have been prepared by a facile method for the gas-phase selective oxidation of alcohols (such as 99.3% benzyl alcohol conversion and 99.6% benzyl aldehyde selectivity). The catalytic activity can maintain at least 200 h compared with Cu/SiC (only within 10 h). The formation of Ag-Cu2O ensembles brings about enhanced improvement both in conversion and stability. The XPS results reveal that large amounts of Ag0-Cu2O active sites formed after pre-activation process and Cu2O sites play a dominant role in benzyl alcohol oxidation reaction. Dehydrogenation reaction process has also been confirmed by O2-TPD.

KW - Ag-CuO

KW - AgCu/SiC

KW - Alcohol oxidation

KW - Bimetallic catalyst

UR - https://www.scopus.com/pages/publications/85018376291

U2 - 10.1016/j.catcom.2017.04.043

DO - 10.1016/j.catcom.2017.04.043

M3 - 文章

AN - SCOPUS:85018376291

SN - 1566-7367

VL - 98

SP - 1

EP - 4

JO - Catalysis Communications

JF - Catalysis Communications

ER -

AgCu/SiC-powder: A highly stable and active catalyst for gas-phase selective oxidation of alcohols

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this