Surfactant free synthesis of Au@Ni core-shell nanochains in aqueous medium as efficient transfer hydrogenation catalyst

被引：14

作者：

Vysakh, A. B. ^{[1
,2
]}

Shebin, K. J. ^{[1
]}

Jain, Ruchi ^{[1
,2
]}

Sumanta, P. ^{[1
,2
]}

Gopinath, Chinnakonda S. ^{[1
,2
,3
]}

Vinod, C. P. ^{[1
,2
,3
]}

机构：

[1] CSIR, Natl Chem Lab, Catalysis Div, Dr Homi Bhabha Rd, Pune 411008, Maharashtra, India

[2] CSIR, Natl Chem Lab, Acad Sci & Innovat Res AcSIR, Dr Homi Bhabha Rd, Pune 411008, Maharashtra, India

[3] CSIR, Natl Chem Lab, Ctr Excellence Surface Sci, Dr Homi Bhabha Rd, Pune 411008, Maharashtra, India

来源：

APPLIED CATALYSIS A-GENERAL | 2019年 / 575卷

关键词：

Au@Ni nanochains; Surfactant free; Core-shell; NAPXPS; Transfer hydrogenation; Synergistic effects; SHAPE-CONTROLLED SYNTHESIS; NICKEL NANOPARTICLES; GOLD NANOPARTICLES; SYNERGISTIC CATALYSIS; FACILE REMOVAL; OXIDATION; METAL; REACTIVITY; SIZE; AG;

D O I：

10.1016/j.apcata.2019.01.017

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A surfactant free aqueous phase synthesis method is reported for the generation of highly lattice mismatched Au@Ni core-shell nanochains without using any expensive and hazardous organic ligands. As synthesised Au@Ni nanochain structures showed high thermal stability and bulk oxidation resistance up to 300 degrees C. In situ near ambient pressure XPS (NAPXPS) analysis has been done for the bare Au@Ni nanochain surfaces under oxygen atmosphere and at different temperatures which showed evidence for the surface oxidation resistance of naked Au@Ni nanochains up to 200 degrees C. Ligand or capping agent free Au@Ni nanochain surfaces are found to be highly active for transfer hydrogenation of acetophenone to 1-phenyl ethanol an important commodity in perfumery industry.

引用

页码：93 / 100

页数：8

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