Co-B-P-O nano particle loaded reduced graphene oxide composite material as well as preparation method and application thereof

Abstract

The invention discloses a Co-B-P-O nano particle loaded reduced graphene oxide composite material, which is prepared by the following steps: obtaining a graphene oxide material by an improved Hummers method, and then loading Co-B-P-O onto reduced graphene oxide by a chemical in-situ reduction method to obtain the Co-B-P-O nano particle loaded reduced graphene oxide composite material. The specific surface area is 62-120 m<2> g <-1>, and the pore size distribution is 12-14 nm. The preparation method comprises the following steps: 1, preparing the graphene oxide nanosheet carrier; and 2, preparing the Co-B-P-O nano particle loaded reduced graphene oxide composite material. According to the application of the catalyst as a sodium borohydride hydrolysis catalyst, the maximum hydrogen desorption rate provided under 298 K reaches 9036.3 mLmin<-1>g <-1>, the hydrogen desorption amount is 100% of a theoretical value, and the activation energy Ea of catalytic hydrogen desorption is equal to 28.64 kJmol<-1>; 88.9% of the initial catalytic activity of the catalyst on hydrolysis of sodium borohydride is still kept after the catalyst is recycled for 10 times. The catalyst has the characteristics of high catalytic performance, high cycle performance, simple process and short reaction period.

Description

Technical field[0001]The present invention relates to the field of catalytic chemical techniques, and more particularly to a CO-B-P-O nanoparticle load reductant oxide in graphene composite material and a preparation method thereof.Background technique[0002]The development of human society is inseparable from high quality energy and advanced energy technology. In today's world, people concerned are more concerned about the development and utilization of energy, and then environmental protection is a common concern of human beings. It is also the primary issue of my country's economic development. However, so far, fossil fuels still act as the main source of energy, with COs that are accompanied when they burn2SO2Waiting for pollutants seriously cause a series of problems such as global warming, environmental pollution, and endangers. In the event of current world energy shortages and global security, the use of clean energy discovers and alternative energy sources is fundamentally s...

AI Technical Summary

Problems solved by technology

[0015] 1. In common reduction methods, the distribution of reduced metal particles is uneven, and agglomeration is easy to occur;

[0016] 2. The carrier adhesion of general carrier-loaded particles is low

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