Size-dependent catalytic properties of Au nanoparticles supported on hierarchical nickel silicate nanostructures

被引：33

作者：

Jin, Renxi ^{[1
]}

Sun, Shaolin ^{[1
]}

Yang, Yang ^{[1
]}

Xing, Yan ^{[1
]}

Yu, Donghui ^{[1
]}

Yu, Xiaodan ^{[1
]}

Song, Shuyan ^{[2
]}

机构：

[1] NE Normal Univ, Coll Chem, Changchun 130024, Peoples R China

[2] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, Changchun 130012, Peoples R China

来源：

DALTON TRANSACTIONS | 2013年 / 42卷 / 22期

基金：

中国国家自然科学基金;

关键词：

DISPERSED SILVER NANOPARTICLES; GOLD NANOPARTICLES; REDUCTION; NANOCOMPOSITES; 4-NITROPHENOL; NANOREACTOR; FRAMEWORK; CITRATE; CARBON;

D O I：

10.1039/c2dt32590j

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The precise control of nanostructures, assembly processing, and the size of each component is important for the construction of integrated functional nanocomposites. In this paper, we describe a simple two-step method for the synthesis of novel flower-like nanocomposites (AuNPs/NiSiO) composed of well-dispersed and size-controlled Au nanoparticles (AuNPs) immobilized on hierarchically structured layered nickel silicate (NiSiO). The as-prepared AuNPs/NiSiO nanocomposites exhibited excellent catalytic activity in the reduction of 4-nitrophenol (4-NP). The experimental results proved that the size of AuNPs played an important role in enhancing the catalytic activity. In particular, there was no visible decrease in the catalytic activity of the reused catalysts even after being recycled five times. Therefore, the hierarchically nanostructured material can be a promising candidate as the catalytic support.

引用

页码：7888 / 7893

页数：6

共 38 条

[1] Sustainable Preparation of Supported Metal Nanoparticles and Their Applications in Catalysis [J].

Campelo, Juan M. ;

Luna, Diego ;

Luque, Rafael ;

Marinas, Jose M. ;

Romero, Antonio A. .

CHEMSUSCHEM, 2009, 2 (01) :18-45

[2] XPS study of supported gold catalysts:: the role of Au0 and Au+δ species as active sites [J].

Casaletto, MP ;

Longo, A ;

Martorana, A ;

Prestianni, A ;

Venezia, AM .

SURFACE AND INTERFACE ANALYSIS, 2006, 38 (04) :215-218

[3] Catalytic reduction of 4-nitrophenol by magnetically recoverable Au nanocatalyst [J].

Chang, Yang-Chuang ;

Chen, Dong-Hwang .

JOURNAL OF HAZARDOUS MATERIALS, 2009, 165 (1-3) :664-669

[4] In situ auto-reduction of silver nanoparticles in mesoporous carbon with multifunctionalized surfaces [J].

Chi, Yue ;

Zhao, Liang ;

Yuan, Qing ;

Yan, Xiao ;

Li, Yanjuan ;

Li, Nan ;

Li, Xiaotian .

JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (27) :13571-13577

[5] From microporous to mesoporous molecular sieve materials and their use in catalysis [J].

Corma, A .

CHEMICAL REVIEWS, 1997, 97 (06) :2373-2419

[6] Gold nanoparticles: Assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology [J].

Daniel, MC ;

Astruc, D .

CHEMICAL REVIEWS, 2004, 104 (01) :293-346

[7] Yolk-like Micro/Nanoparticles with Superparamagnetic Iron Oxide Cores and Hierarchical Nickel Silicate Shells [J].

Fang, Qunling ;

Xuan, Shouhu ;

Jiang, Wanquan ;

Gong, Xinglong .

ADVANCED FUNCTIONAL MATERIALS, 2011, 21 (10) :1902-1909

[8] Gold catalysis [J].

Hashmi, A. Stephen K. ;

Hutchings, Graham J. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (47) :7896-7936

[9] Preparation of gold-dendrimer nanocomposites by laser irradiation and their catalytic reduction of 4-nitrophenol [J].

Hayakawa, K ;

Yoshimura, T ;

Esumi, K .

LANGMUIR, 2003, 19 (13) :5517-5521

[10] High-pressure framework silicates [J].

Hazen, RM ;

Downs, RT ;

Finger, LW .

SCIENCE, 1996, 272 (5269) :1769-1771

← 1 2 3 4 →