Method for preparing ruthenium catalyst supported on porous carbon

Abstract

The invention discloses a method for preparing a ruthenium catalyst supported on porous carbon and relates to the technical fields of carbon materials and hydrogen evolution catalysts of electrolyticwater. The method comprises the following steps: 1, dissolving F127 in a solvent and stirring until the F127 is completely dissolved in the solvent to obtain a colorless transparent solution; 2, adding a coupling agent to the colorless transparent solution and continuously stirring until the coupling agent is completely dissolved to obtain a yellow transparent solution; 3, adding a mixed solutionof ruthenium trichloride and ethanol to the yellow transparent solution and continuously stirring to obtain a blue black solution; 4, manufacturing a precursor through thermal reaction and carbonization reaction; and 5, placing the precursor in a tube furnace and roasting the precursor in the tube furnace to obtain the ruthenium catalyst supported on porous carbon. The method for preparing the ruthenium catalyst supported on porous carbon, which is provided by the invention, has the advantages that the process is simple; the cost is low; and the performance of the prepared catalyst is good.

Description

technical field [0001] The invention relates to the technical field of carbon materials and electrolytic water hydrogen evolution catalysts, in particular to a preparation method of a catalyst for porous carbon-loaded ruthenium. Background technique [0002] Energy is an important material basis for economic development and social progress. In recent years, severe energy pressure and environmental pollution have threatened the ecological balance and restricted the sustainable development of the social economy, which has become the focus of attention of all countries. Hydrogen energy is an ideal green energy carrier with unparalleled potential development value. In addition to nuclear fuels, the calorific value of hydrogen is much higher than that of fossil fuels, chemical fuels and biofuels, and has the advantages of concentrated heat energy and small heat loss. In addition, hydrogen energy has good combustion performance, and the combustion product is water, which is envi...

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Problems solved by technology

Therefore, the development of an efficient, stable and cheap hydrogen evolution reaction catalyst is the main research direction at present. At present, the commercial platinum carbon catalyst (Pt / C) is the most used in the hydrogen evolution reaction of electrolytic water, but the precious metal platinum has less reserves. , expensive and other disadvantages limit its wide range of applications, and platinum’s congener metal ruthenium has similar activity to platinum (the binding energy of ruthenium and platinum to hydrogen is similar, ≈65kcal mol- 1 ), but the price of ruthenium is much lower than that of platinum and its congeners (Ru 42 USD / oz, Pt 992 USD / oz, Pd 551 USD / oz, Ir 500 USD / oz,), therefore, ruthenium as a A metal that is likely to be a substitute for platinum has become a research hotspot in recent years.

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