Functional graphene loaded gold palladium nano-catalyst as well as preparation and application thereof

Abstract

The invention provides a functional graphene loaded gold palladium nano-catalyst as well as preparation and application thereof. A one-step fast reduction method is used; a functional graphene loadedgold palladium nano-catalyst is fast synthesized at room temperature; the advantages that the synthesis time is short, the operation is simple and convenient, and the like are realized; the dispersionperformance of gold palladium nanometer particles on graphene carriers (NH2-N-rGO) modified by -NH2-N is obviously improved; the particle dimension (0.3 to 2.8nm) of metal NPs is effectively reduced;the synthesized AuPd / NH2-N-rGO catalyst is used for catalyzing methanoic acid water solution for room temperature decomposition for hydrogen preparation. The catalyst still has high catalysis activity under the condition of no additive existence; the conversion rate is 100 percent; the hydrogen selectivity is 100 percent; the circulation stability is high; the catalysis activity is high.

Description

technical field [0001] The invention belongs to the field of catalyst preparation and the sustainable development of environment and energy, and in particular relates to a -NH 2 Preparation of graphene-supported gold-palladium nanocatalysts functionalized with -N bifunctional groups and its application in formic acid hydrolysis for hydrogen production. Background technique [0002] As a clean and efficient green energy, hydrogen energy has attracted extensive research interest, and it can be widely used in power generation and fuel cells and other fields. However, traditional high-pressure tanks and low-temperature liquid hydrogen storage methods have disadvantages such as low efficiency, poor safety, and high cost. Therefore, the development of safe and efficient hydrogen storage methods is a current research hotspot. [0003] Formic acid (HCOOH, FA) has the advantages of non-toxicity, high energy density, abundant sources, stable liquid at room temperature, etc., and can ...

AI Technical Summary

Problems solved by technology

At present, the catalysts used for hydrogen production from formic acid decomposition mainly include homogeneous catalysts and heterogeneous catalysts. Although homogeneous catalysts have high catalytic activity, they have disadvantages such as difficult separation and recovery, while heterogeneous catalysts can avoid these disadvantages. Therefore, it has been widely studied and used

However, most of the heterogeneous catalysts that have been reported require higher reaction temperatures or the addition of additives, and there is still a large room for improvement in the catalytic performance of heterogeneous catalysts.

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