C2H2 Treatment as a Facile Method to Boost the Catalysis of Pd Nanoparticulate Catalysts

被引：85

作者：

Dai, Yan ^{[1
,2
]}

Liu, Shengjie ^{[3
]}

Zheng, Nanfeng ^{[1
,2
]}

机构：

[1] Xiamen Univ, Collaborat Innovat Ctr Chem Energy Mat, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

[2] Xiamen Univ, Natl Engn Lab Green Chem Prod Alcohols Ethers Est, Xiamen 361005, Peoples R China

[3] Xiamen Univ, Coll Chem & Chem Engn, Dept Chem Engn, Xiamen 361005, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2014年 / 136卷 / 15期

关键词：

HETEROGENEOUS ENANTIOSELECTIVE HYDROGENATION; VOLATILE ORGANIC-COMPOUNDS; SELF-ASSEMBLED-MONOLAYER; SELECTIVE HYDROGENATION; MODIFIED PLATINUM; ASYMMETRIC CATALYSIS; PALLADIUM CATALYSTS; SURFACE; EPOXIDATION; OXIDATION;

D O I：

10.1021/ja501530n

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A facile method to boost the catalysis of Pd nanoparticulate catalysts by simple C2H2 treatment is developed. During the C2H2 treatment, Pd nanoparticles serve as active catalysts to polymerize C2H2 into transpolyacetylene. The deposition of trans-polyacetylene layer on Pd nanoparticles makes their surface hydrophobic. Such a hydrophobic surface modification helps to accumulate more hydrophobic substrates during catalysis, making the modified Pd nanoparticulate catalysts more active than untreated catalysts in the catalytic reaction involving hydrophobic substrates. Moreover, the coating of polyacetylene on Pd creates encapsulated Pd nanocatalysts, stabilizing Pd nanoparticles against sintering or aggregation. Since the catalytic polymerization of polyacetylene on Pd is not facet dependent, the development is readily applied to enhance the catalysis of commercial Pd nanoparticulate catalysts by simple C2H2 treatment.

引用

页码：5583 / 5586

页数：4