Remarkably improved performance of Au-Pd/γ-Al2O3 catalyst in benzyl alcohol oxidation by mercapto-propyl-trimethoxysilane modification

被引：3

作者：

Bai, Peng ^{[1
]}

Zhou, Tao ^{[1
]}

Wang, Xiaohua ^{[2
]}

Liu, Xiaofei ^{[3
]}

Wang, Yi ^{[1
,3
]}

Wang, Yue ^{[1
]}

Muhumuza, Edgar ^{[1
]}

Zhang, Yonghui ^{[1
]}

Wu, Pingping ^{[1
]}

机构：

[1] China Univ Petr East China, Coll Chem & Chem Engn, State Key Lab Heavy Oil Proc, Key Lab Catalysis, Qingdao 266580, Peoples R China

[2] PetroChina Co Ltd, Petrochem Res Inst, Beijing 100195, Peoples R China

[3] PetroChina Lanzhou Petrochem Res Ctr, Lanzhou 730060, Peoples R China

来源：

CATALYSIS TODAY | 2022年 / 405-406卷

关键词：

One -pot synthesis; Organosilane; Partial oxidation; Lewis acid sites; MIXED-OXIDE CATALYSTS; ELECTRONIC-PROPERTIES; SELECTIVE OXIDATION; MODIFIED ALUMINA; SUPPORTED AU; ACID SITES; IN-SITU; NANOPARTICLES; FACILE; TIO2;

D O I：

10.1016/j.cattod.2022.05.038

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A series of gamma-Al2O3 supported gold-palladium (Au-Pd) alloy nanoparticles (NPs) catalysts were synthesized by a one-pot approach applying mercapto-propyl-trimethoxysilane (MPTMS) as an anchoring ligand. Homogeneously dispersed Au-Pd alloy NPs were observed on the prepared catalysts and their catalytic performance in benzyl alcohol partial oxidation was investigated. Results showed that the highest benzaldehyde yield was achieved on catalyst Au-Pd/7%MPTMS-gamma-Al2O3 with a benzaldehyde selectivity of 90%. By establishing the structure -performance relationship, the high activity of catalysts with MPTMS modification was attributed to the anchoring and dispersion effect of MPTMS on Au-Pd NPs, while the high benzaldehyde selectivity was due to the formation of more surface Lewis acid sites after introducing MPTMS, protecting the benzaldehyde from over -oxidation to byproducts.

引用

页码：182 / 192

页数：11

共 50 条

[1] Facile synthesis of thermally stable mesoporous crystalline alumina by using a novel cation-anion double hydrolysis method [J].

Bai, P ;

Xing, W ;

Zhang, ZX ;

Yan, MF .

MATERIALS LETTERS, 2005, 59 (24-25) :3128-3131

[2] Catalytic materials based on silica and alumina: Structural features and generation of surface acidity [J].

Busca, Guido .

PROGRESS IN MATERIALS SCIENCE, 2019, 104 :215-249

[3] Metal-Support Cooperative Effects in Au/VPO for the Aerobic Oxidation of Benzyl Alcohol to Benzyl Benzoate [J].

Campisi, Sebastiano ;

Ferri, Michele ;

Chan-Thaw, Carine E. ;

Trujillo, Felipe J. Sanchez ;

Motta, Davide ;

Tabanelli, Tommaso ;

Dimitratos, Nikolaos ;

Villa, Alberto .

NANOMATERIALS, 2019, 9 (02)

[4] Cooperative Catalysis of Methane Oxidation through Modulating the Stabilization of PdO and Electronic Properties over Ti-Doped Alumina-Supported Palladium Catalysts [J].

Chen, Benxia ;

Lin, Jia ;

Chen, Xiaohua ;

Chen, Yelin ;

Xu, Yalan ;

Wang, Zhixiong ;

Zhang, Wen ;

Zheng, Ying .

ACS OMEGA, 2019, 4 (20) :18582-18592

[5] Recent advances in selective C-C bond coupling for ethanol upgrading over balanced Lewis acid-base catalysts [J].

Dai, Jingjing ;

Zhang, Hongbo .

SCIENCE CHINA-MATERIALS, 2019, 62 (11) :1642-1654

[6] Enhanced surface acidity in mixed alumina-silicas:: a low-temperature FTIR study [J].

Daniell, W ;

Schubert, U ;

Glöckler, R ;

Meyer, A ;

Noweck, K ;

Knözinger, H .

APPLIED CATALYSIS A-GENERAL, 2000, 196 (02) :247-260

[7] Preparation and Characterization of γ-Al2O3 with Rich Bronsted Acid Sites and Its Application in the Fluid Catalytic Cracking Process [J].

Feng, Rui ;

Liu, Songtao ;

Bai, Peng ;

Qao, Ke ;

Wang, Youhe ;

Al-Megren, Hamid A. ;

Rood, Mark J. ;

Yan, Zifeng .

JOURNAL OF PHYSICAL CHEMISTRY C, 2014, 118 (12) :6226-6234

[8] Influence of Support Basic Sites in Green Oxidation of Biobased Substrates Using Au-Promoted Catalysts [J].

Ferraz, Camila P. ;

Zielinski, Michal ;

Pietrowski, Mariusz ;

Heyte, Svetlana ;

Dumeignil, Franck ;

Rossi, Liane M. ;

Wojcieszak, Robert .

ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2018, 6 (12) :16332-16340

[9] When sonochemistry meets heterogeneous photocatalysis: designing a sonophotoreactor towards sustainable selective oxidation [J].

Giannakoudakis, Dimitrios A. ;

Lomot, Dariusz ;

Colmenares, Juan Carlos .

GREEN CHEMISTRY, 2020, 22 (15) :4896-4905

[10] Enhanced catalyst selectivity in the direct synthesis of H2O2through Pt incorporation into TiO2supported AuPd catalysts [J].

Gong, Xiaoxiao ;

Lewis, Richard J. ;

Zhou, Song ;

Morgan, David J. ;

Davies, Thomas E. ;

Liu, Xi ;

Kiely, Christopher J. ;

Zong, Baoning ;

Hutchings, Graham J. .

CATALYSIS SCIENCE & TECHNOLOGY, 2020, 10 (14) :4635-4644

← 1 2 3 4 5 →