Dopamine-Directed In-Situ and One-Step Synthesis of Au@Ag Core-Shell Nanoparticles Immobilized to a Metal-Organic Framework for Synergistic Catalysis

被引：30

作者：

Huang, Pengcheng ^{[1
]}

Ma, Wenjie ^{[1
]}

Yu, Ping ^{[1
]}

Mao, Lanqun ^{[1
]}

机构：

[1] Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Analyt Chem Living Biosyst, Beijing 100190, Peoples R China

来源：

CHEMISTRY-AN ASIAN JOURNAL | 2016年 / 11卷 / 19期

基金：

中国国家自然科学基金;

关键词：

catalysis; core-shell nanoparticles; gold; metal-organic frameworks; silver; ENHANCED HYDROGEN-STORAGE; GOLD NANOPARTICLES; COORDINATION POLYMER; PHASE SYNTHESIS; NANOCRYSTALS; REDUCTION; GROWTH; SILVER; DEHYDROGENATION; SEGREGATION;

D O I：

10.1002/asia.201600469

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a facile and general approach to the formation of bimetallic core-shell Au@Ag nanoparticles (NPs) immobilized to metal-organic frameworks (MOFs) via a one-step synthetic route at room temperature. Dopamine (DA) is used as a moderate reductant, which can bind to negatively charged groups of MOFs through electrostatic interaction, and subsequently Au@Ag core-shell NPs are formed by in-situ reduction of the bimetallic Au and Ag precursors step-by-step spontaneously without pre-synthesized seeds. The as-formed Au@Ag core-shell NPs immobilized to MOFs exhibit excellent catalytic activity for the reduction of 4-nitrophenol (4-NPh) by NaBH4 to 4-aminophenol (4-APh) due to a synergistic effect and are highly stable as demonstrated by recycling experiments.

引用

页码：2705 / 2709

页数：5

共 62 条

[1] Metal-Organic Framework-Immobilized Polyhedral Metal Nanocrystals: Reduction at Solid-Gas Interface, Metal Segregation, Core-Shell Structure, and High Catalytic Activity [J].

Aijaz, Arshad ;

Akita, Tomoki ;

Tsumori, Nobuko ;

Xu, Qiang .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2013, 135 (44) :16356-16359

[2] Cellulose Hydrolysis by a New Porous Coordination Polymer Decorated with Sulfonic Acid Functional Groups [J].

Akiyama, George ;

Matsuda, Ryotaro ;

Sato, Hiroshi ;

Takata, Masaki ;

Kitagawa, Susumu .

ADVANCED MATERIALS, 2011, 23 (29) :3294-+

[3] Immobilization of Ultrafine Bimetallic Ni-Pt Nanoparticles Inside the Pores of Metal-Organic Frameworks as Efficient Catalysts for Dehydrogenation of Alkaline Solution of Hydrazine [J].

Cao, Nan ;

Yang, Lan ;

Dai, Hongmei ;

Liu, Teng ;

Su, Jun ;

Wu, Xiaojun ;

Luo, Wei ;

Cheng, Gongzhen .

INORGANIC CHEMISTRY, 2014, 53 (19) :10122-10128

[4] Core/Shell Nanoparticles: Classes, Properties, Synthesis Mechanisms, Characterization, and Applications [J].

Chaudhuri, Rajib Ghosh ;

Paria, Santanu .

CHEMICAL REVIEWS, 2012, 112 (04) :2373-2433

[5] Seed-mediated growth of MOF-encapsulated Pd@Ag core-shell nanoparticles: toward advanced room temperature nanocatalysts [J].

Chen, Liyu ;

Huang, Binbin ;

Qiu, Xuan ;

Wang, Xi ;

Luque, Rafael ;

Li, Yingwei .

CHEMICAL SCIENCE, 2016, 7 (01) :228-233

[6] Encapsulation of Mono- or Bimetal Nanoparticles Inside Metal-Organic Frameworks via In situ Incorporation of Metal Precursors [J].

Chen, Liyu ;

Chen, Xiaodong ;

Liu, Hongli ;

Li, Yingwei .

SMALL, 2015, 11 (22) :2642-2648

[7] Multifunctional PdAg@MIL-101 for One-Pot Cascade Reactions: Combination of Host-Guest Cooperation and Bimetallic Synergy in Catalysis [J].

Chen, Yu-Zhen ;

Zhou, Yu-Xiao ;

Wang, Hengwei ;

Lu, Junling ;

Uchida, Takeyuki ;

Qiang, Xu ;

Yu, Shu-Hong ;

Jiang, Hai-Long .

ACS CATALYSIS, 2015, 5 (04) :2062-2069

[8] Tiny Pd@Co Core-Shell Nanoparticles Confined inside a Metal-Organic Framework for Highly Efficient Catalysis [J].

Chen, Yu-Zhen ;

Xu, Qiang ;

Yu, Shu-Hong ;

Jiang, Hai-Long .

SMALL, 2015, 11 (01) :71-76

[9]

Cheon Y.E., 2009, ANGEW CHEM, V121, P2943

[10] Enhanced Hydrogen Storage by Palladium Nanoparticles Fabricated in a Redox-Active Metal-Organic Framework [J].

Cheon, Young Eun ;

Suh, Myunghyun Paik .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2009, 48 (16) :2899-2903

← 1 2 3 4 5 6 7 →