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Method to produce noble metal nanocomposites

a technology of noble metals and nanocomposites, applied in the field of composites, can solve problems such as environmental pollution, and achieve the effect of easy and rapid production

Inactive Publication Date: 2016-09-29
KING SAUD UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

The patent text describes a method for making nobel metal nanocomposites using a natural plant extract as a reducing agent. The method involves reducing metal ions onto graphene oxide or carbon nanotubes to create small nanoparticles that are embedded on the surface of the materials. This method is easy and fast, and avoids the use of toxic chemicals. The resulting nanocomposites can be used in biosensor, fuel cell, and biomedical applications.

Problems solved by technology

However, these methods use hazardous chemicals, high pressure, energy, and temperatures that lead to environmental pollution.

Method used

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Embodiment Construction

[0027]The method for producing noble metal nanocomposites involves reducing noble metal ions (Ag, Au and Pt) on graphene oxide (GO) or carbon nanotubes (CNT) by using Artocarpus integrifolia leaves extract as a reducing agent. As synthesized MNPs / GO and MNPs / CNT composites have been characterized using X-ray diffraction (XRD), transmission electron microscope (TEM) imaging, and energy dispersive X-ray spectroscopy (EDX). The TEM images of prepared materials showed that the nanocomposites were 2-20 nm in size with spherical nanoparticles embedded on the surface of GO and CNT. This synthetic route is easy and rapid for preparing a variety of nanocomposites. The method avoids use of toxic chemicals, and the prepared nanocomposites can be used for biosensor, fuel cell, and biomedical applications.

[0028]In the following examples, leaves of Artocarpus integrifolia were collected from the Kanyakumari Dist., Tamil Nadu (India). Graphite and CNT were purchased from S.D.Fine, Inida and Sigma,...

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Abstract

The method for producing noble metal nanocomposites involves reducing noble metal ions (Ag, Au and Pt) on graphene oxide (GO) or carbon nanotubes (CNT) by using Artocarpus integrifolia leaves extract as a reducing agent. As synthesized MNPs / GO and MNPs / CNT composites have been characterized using X-ray diffraction (XRD), transmission electron microscope (TEM) imaging, and energy dispersive X-ray spectroscopy (EDX). The TEM images of prepared materials showed that the nanocomposites were 1-30 nm in size with spherical nanoparticles embedded on the surface of GO and CNT. This synthetic route is easy and rapid for preparing a variety of nanocomposites. The method avoids use of toxic chemicals, and the prepared nanocomposites can be used for biosensor, fuel cell, and biomedical applications.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to composites, and particularly to a method for producing noble metal nanocomposites that have noble metal nanoparticles (MNP) embedded in a carbon-based substrate of graphene oxide (GO) or carbon nanotubes (CNT).[0003]2. Description of the Related Art[0004]Noble metal nanoparticles have gained remarkable attention due to their excellent physical, chemical and biological properties. On the other hand, carbon-based nano-materials, including graphene oxide (GO) sheets and carbon nanotubes (CNT), are promising supporting materials for noble metal nanoparticles to produce new nanocomposites that can be used in a wide variety of applications because of their distinctive electronic, thermal, and mechanical properties. Currently, the search for synthetic routes for embedding metal nanoparticles on carbon-based materials is a rapidly growing research area in nanoscience and nanotechnology. So far, ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C23C18/44C23C18/16
CPCC23C18/44C23C18/1662C23C18/1646C23C18/1639C23C18/1635C23C18/1658C23C18/1882C23C18/31
Inventor ALSHATWI, ALI A.ATHINARAYANAN, JEGANPERIASAMY, VAIYAPURI SUBBARAYAN
Owner KING SAUD UNIVERSITY
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